数学与计算科学

 

学术动态
Memetics and   neural models of conspiracy theories
Multitude of conspiracy theories people believe in all over the   world is astonishing. They actually accompany each significant event: a   catastrophe, assassination, death of a famous person or, current...
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New tool reveals   ultimate owners of companies
Researchers from Skoltech, the European University at St.   Petersburg, and Lomonosov Moscow State University have developed an algorithm   that detects the ultimate controlling owners of companies. Appli...
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仿射群与Minkowski平面的刚体运动群上的Gauss-Bonnet定理
2017 年,   Diniz与Veloso两位学者定义了次黎曼Heisenberg空间中非水平曲面的高斯曲率且证明了Gauss-Bonnet定理[2].   该定义类似于中具有特定法曲面和Hausdorff面积测度的曲面的高斯曲率. 在中, 考虑由向量场,生成的分...
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Mathematical   Constructions of COVID Virus Activity Could Provide New Insight for Vaccines,   Treatment
Mathematical constructions of the action of SARS-CoV-2 and its   multiple spikes, which enable its success at infecting cells, can give   vaccine developers and pharmaceutical companies alike a more preci...
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国际数学联盟百年庆   田刚理事长作邀请报告
(图片来源于IMU百年庆典官网)   2021年9月27日至9月28日,“数学无界”——国际数学联盟成立一百周年纪念大会在法国斯特拉斯堡大学宫举办,这里也正是1920年国际数学联盟成立的地方。国际数学联盟主席Carlos   E. Keni...
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Contact-Tracing   Apps Could Improve Vaccination Strategies
Mathematical modeling of disease spread suggests that herd   immunity could be achieved with fewer vaccine doses by using Bluetooth-based   contact-tracing apps to identify people who have more exposure t...
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第二届数学生命科学大会在线上顺利召开
2021年8月28日至29日,由中国工业与应用数学学会(CSIAM)主办,CSIAM数学生命科学专委会、国家天元数学中部中心、湖北应用数学中心和武汉大学数学与统计学院承办的“第二届数学生命科学大会”在线上成功召开。来自国...
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国家天元数学东南中心举办“动力系统与遍历理论青年学者研讨会”
2021年9月18日—19日由国家天元数学东南中心主办的“动力系统与遍历理论青年学者研讨会”(Workshop for   Young Scholars on Dynamical Systems and Ergodic   Theory)通过“腾讯会议”线上举行。来自北京大学、中国科...
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中心仿射几何中的不变曲面流
It is well known that the central problem of the whole of modern   mathematics is the study of transcendental functions defined by differential   equations. --- Felix Klein 在著名的“爱尔兰根纲领”中,德国...
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2021世界计算大会在长沙召开
9月16日-18日,由湖南省人民政府、工业和信息化部联合主办的2021世界计算大会在湖南长沙国际会议中心召开。中国工业与应用数学学会(以下简称“学会”)副理事长、湘潭大学党委书记、湖南国家应用数学中心主任黄云清...
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Math researchers   find new ways to improve the science of 'trade-offs'
QUT researchers working on complicated problems in agriculture,   ecology and medicine have developed a mathematical model to enable faster   solutions.
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New Ways to   Improve the Science of ‘trade-Offs’
QUT researchers working on complicated problems in agriculture,   ecology and medicine have developed a mathematical model to enable faster   solutions. advertisement Questions about intervention, how str...
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特刊推荐阅读 |   混沌系统的电路应用:建模、动力学分析和控制
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上海交大李松挺和周栋焯课题组在CPAM发表关于大脑神经元动力学建模与分析的最新研究成果
近日,上海交通大学自然科学研究院和数学科学学院的李松挺和周栋焯课题组通过数学建模、理论分析和数值计算,研究了具有空间树突结构的神经元的动力学特征,研究成果《Mathematical   Modeling and Analysis of Spatia...
Video analysis   reveals aspects of posture that lead to success in judo throws
Scientists from the Faculty of Engineering, Information, and   Systems at the University of Tsukuba analyzed video from top-level judo   matches to systematically determine the aspects of posture, just be...
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A Universal   Equation for the Shape of an Egg
Researchers from the University of Kent, the Research Institute   for Environment Treatment and Vita-Market Ltd have discovered a universal   mathematical formula that can describe any bird's egg existing...
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New Mathematical   Solutions to an Old Problem in Astronomy
For millennia, humanity has observed the changing phases of the   Moon. The rise and fall of sunlight reflected off the Moon, as it presents   its different faces to us, is known as a "phase curve." Measu...
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A New Model for   Group Decision-Making Shows How 'Followers' Can Influence the Outcome
From small committees to national elections, group   decision-making can be complicated -- and it may not always settle on the   best choice. That's partly because some members of the group do research   on...
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Surprisingly   popular voting algorithm developed to recover ranked choices
Imagine you are asked to rank the counties in Pennsylvania in   terms of number of COVID-19 infections. Or you may be asked to rank the   following cities in Pennsylvania based on their populations: Harri...
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Research finally   reveals ancient, universal equation for the shape of an egg
Researchers from the University of Kent, the Research Institute   for Environment Treatment and Vita-Market Ltd have discovered the universal   mathematical formula that can describe any bird's egg existi...
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2021年全国大学生数学建模竞赛赛区工作会议顺利举行
2021年8月20日上午,2021年全国大学生数学建模竞赛赛区工作会议在线上顺利召开。本次会议邀请了中国工业与应用数学学会(以下简称学会)竞赛工作委员会委员张之正教授,全国大学生数学建模竞赛组织委员会(以下简称全...
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《数学建模与中国创造》系列公益讲座圆满结束
2021年是全国大学生数学建模竞赛创赛30周年,为进一步加强大家对数学建模的了解,宣传数学建模在各领域的广泛应用,中国工业与应用数学学会全国大学生数学建模竞赛组织委员会联合高等教育出版社和中国大学生在线共同...
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中国工业与应用数学学会第七届第十六次常务理事会议召开
8月21日,中国工业与应用数学学会(以下简称“学会”)第七届第十六次常务理事会议以线上线下相结合的方式召开。学会常务理事、监事会监事、副秘书长、部分专委会负责人及办公室工作人员等77人出席会议,学会秘书长闫...
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Robot Mimics the   Powerful Punch of the Mantis Shrimp
Mantis shrimp pack the strongest punch of any creature in the   animal kingdom. Their club-like appendages accelerate faster than a bullet   out of a gun and just one strike can knock the arm off a crab o...
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Improved   statistical methods for high-throughput omics data analysis
High-throughput omics technology has revolutionized biological   and biomedical research and large volumes of omics data have been produced.   For this, computational tools to manage and analyze the omics...
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国家天元数学东南中心举办“前沿优化与应用暑期交流合作研讨会”
2021年8月5日-6日,国家天元数学东南中心以线上会议的形式成功举办了前沿优化与应用暑期交流合作研讨会。本次会议的主要目的是为了促进前沿优化与应用领域的交流合作,特别着重于促进东南地区青年学者与资深专家的交...
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第二届国际理论计算机联合大会IJTCS2021成功举办
2021年8月16-19日,第二届国际理论计算机联合大会(International Joint Conference on   Theoretical Computer   Science,IJTCS)于线上线下交互举行。大会由北京大学和中国计算机学会(CCF)、国际计算机学会中国委员...
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Mathematicians   Build an Algorithm to ‘do the Twist’
Mathematicians at the Center for Advanced Mathematics for Energy   Research Applications (CAMERA) at Lawrence Berkeley National Laboratory   (Berkeley Lab) have developed a mathematical algorithm to decip...
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Celebrating a new   pi record!
This week a team from the University of Graubünden in   Switzerland announced that they have calculated the decimal digits of the   number [maths]$\pi$ to a record 62.8 trillion places. The calculation t...
梁贯成教授中国数学会数学教育分会成立致辞
中国数学会数学教育分会成立致辞 梁贯成   尊敬的田理事长,尊敬的陈校长、各位领导、各位嘉宾、各位老师、各位同学,我很开心可以参加中国数学会数学教育分会的成立仪式。大家都知道,我到上海是参加国际数学教育大会...
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Swiss researchers   declare new record for exact pi figure
Swiss researchers said Monday they had calculated the   mathematical constant pi to a new world-record level of exactitude, hitting   62.8 trillion figures using a supercomputer.
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From Mathematics   to Medicine: Applying Complex Mathematics to Analyze fMRI Data
Research led by a Wayne State University Department of   Mathematics professor is aiding researchers in Wayne State's Department of   Psychiatry and Behavioral Neurosciences in analyzing fMRI data. fMRI i...
国际数学教育界的奥林匹克,今夏在华东师大开幕!
第十四届国际数学教育大会今天(7月12日)在上海开幕。上海市委书记李强出席开幕式并指出,上海正在深入贯彻落实习近平主席重要指示精神,全面深化“五个中心”建设,加快提升城市能级和核心竞争力。实现科技和经济创...
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开启中国数学教育新篇章∣中国数学会数学教育分会成立,秘书处设在华东师大
为推动中国数学教育的发展,7月12日下午,中国数学会数学教育分会成立仪式在华东师大举行。中国数学会理事长兼中国数学会数学教育分会理事长田刚院士、华东师大校长钱旭红院士、国际数学教育委员会主席梁贯成教授出席...
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Mathematical   Model Predicts the Movement of Microplastics in the Ocean
A new model tracking the vertical movement of algae-covered   microplastic particles offers hope in the fight against plastic waste in our   oceans. advertisement Research led by Newcastle University's Dr...
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Mathematicians   Develop Ground-Breaking Modeling Toolkit to Predict Local COVID-19 Impact
A Sussex team -- including university mathematicians -- have   created a new modelling toolkit which predicts the impact of COVID-19 at a   local level with unprecedented accuracy. The details are publish...
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For Many   Students, Double-Dose Algebra Leads to College Attainment
In the United States, low-income and minority students are   completing college at low rates compared to higher-income and majority peers   -- a detriment to reducing economic inequality. Double-dose alge...
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可积系统及相关领域的交叉研究(常向科)
研究院是一个综合性的国立学术研究机构,覆盖了数学与系统科学的主要研究方向。研究院新时期的办院方针是:在数学与系统科学领域,面向国际发展前沿,面向国家战略需求,做出原创性、突破性和关键性的重大理论成果与...
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关于公布“2021年国家天元数学东南中心高校青年教师公共数学课程暑期培训班”录取名单的通知
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吕克宁教授做Colloquium第三十七期讲座
应国家天元数学东南中心与数学科学学院邀请,美国杨百翰大学吕克宁教授通过腾讯会议为我院师生做了题为《Statistical   properties of 2D stochastic Navier-Stokes equations with time-periodic   forcing and degener...
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关于公布“2021年国家天元数学东南中心   高校青年教师公共数学课程暑期培训班”录取名单的通知
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Research rebuttal   paper uncovers misuse of Holocaust datasets
Aerospace engineering faculty member Melkior Ornik is also a   mathematician, a history buff, and a strong believer in integrity when it   comes to using hard science in public discussions. So, when a sto...
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Pac-Man and   Picasso: Researcher pushes the boundaries of learning in mathematics   education
Earth is a round planet where flat surfaces and perfect shapes   are scarce, but assignments in many geometry courses are completed on grid   paper with simplified line segments and symmetrical polygons.
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Urban green space   brings happiness when money can't buy it anymore
Urban green spaces, such as parks, backyards, riverbanks, and   urban farmlands, are thought to contribute to citizen happiness by promoting   physical and mental health. While a number of previous studie...
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国家天元数学东南中心成功举办“2021年厦门几何分析国际会议”
2021年6月14日-6月17日,“2021年厦门几何分析国际会议”在国家天元数学东南中心举行,此次会议是厦门大学百年校庆系列学术活动之一。北京大学田刚院士、南开大学张伟平院士、南方科技大学的方复全院士、美国普林斯顿...
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Researchers find   optimal way to pay off student loans
After graduating or leaving college, many students face a   difficult choice: Try to pay off their student loans as fast as possible to   save on interest, or enroll in an income-based repayment plan, whi...
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A master’s that   takes the fear out of numbers
Is a lack of financial experience holding you back from the next   step in your career? Do you worry you can’t talk with confidence about   figures and funding? While not everything is driven by the bott...
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Predicting the   evolution of a pandemic
The inclusion of biological uncertainty and the latest case data   can significantly improve the prediction accuracy of standard epidemiological   models of virus transmission, new research led by KAUST a...
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数学与产业双轮驱动,实现产学研结合,相互成就——华为董事、战略研究院院长徐文伟在数学促进企业创新发展论坛上的讲话
2021年6月12日上午,中国工业与应用数学学会第二届“数学促进企业创新发展论坛”开幕式在重庆举行。华为技术有限公司董事、战略研究院院长徐文伟先生在开幕式上作了精彩的演讲。以下是演讲全文:   数学与产业双轮驱动...
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张平文理事长在CSIAM第二届数学促进企业创新发展论坛开幕式上的讲话
2021年6月12日上午,中国工业与应用数学学会第二届“数学促进企业创新发展论坛”开幕式在重庆隆重举行。学会理事长、北京大学党委常委、副校长张平文院士在会上发表了热情洋溢的讲话,以下是张平文院士讲话全文:   在...
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深化数企融合,促进科技创新——CSIAM第二届数学促进企业创新发展论坛在重庆隆重开幕
6月12日上午,为探讨和发挥数学在经济金融、信息技术、国防科技、智能制造、社会发展中的重要作用,加强数学与产业界的交流与合作,促进企业创新发展,中国工业与应用数学学会(以下简称“学会”)第二届“数学促进企...
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首届CSIAM应用数学落地成果发布
6月12日,中国工业与应用数学学会(以下简称“学会”)第二届“数学促进企业创新发展论坛”在重庆开幕,开幕式上发布了首届CSIAM应用数学落地成果。   由香港中文大学(深圳)罗智泉、华为技术有限公司王楠斌、陈昕等共...
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The Delta   variant: What do we know?
The UK is yet again bracing itself for a government announcement   regarding COVID-19 restrictions. The worry this time surrounds the Delta   variant, first detected in India and classed a variant of conc...
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A breath of fresh   air
There would be a scandal if thousands of people were dying from   a disease caught from the water that comes out of the tap. Or if commonly   used building materials were causing widespread disease. Could...
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A Random Walk   through the English Language
Here’s a game Claude Shannon, the founder of information theory,   invented in 1948. He was trying to model the English language as a random   process. Go to your bookshelf, pick up a random book, open i...
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Tony Hoare:   Beyond Quicksort
There aren't many computer algorithms famous enough to get their   very own birthday party, but Quicksort is one of them. Invented by the   computer scientist Tony Hoare and published in July 1961, the al...
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国家天元数学东南中心成功举办计算数学前沿科学论坛
2021年5月27日至5月31日,国家天元数学东南中心成功举办计算数学前沿科学论坛,本论坛是厦门大学百年校庆系列学术活动之一。陈志明院士以及国家***人才、国家自然科学基金委天元学术领导小组成员、国家自然科学基...
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Early Warning   System for COVID-19 Gets Faster Through Wastewater Detection and Tracing
Math continues to be a powerful force against COVID-19.   advertisement Its latest contribution is a sophisticated algorithm, using   municipal wastewater systems, for determining key locations in the det...
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Quantifying the   role of chance in professional football
In football, chance is defined as actions or situations   occurring during the game that cannot be planned and are therefore difficult   to train for. Take for instance deflected shots, balls that rebound...
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Applying   mathematics takes 'friendship paradox' beyond averages
The friendship paradox is the observation that the degrees of   the neighbors of a node within any network will, on average, be greater than   the degree of the node itself. In other words: your friends p...
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Mathematician   boosts domain decomposition method for asynchronous parallel computing
A RUDN University mathematician and his colleagues from France   and Hungary developed an algorithm for parallel computing, which allows   solving applied problems, such as in electrodynamics or hydrodyna...
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第十届有限域及其应用国际研讨会在洛阳市召开
由中国工业与应用数学学会(以下简称“学会”)主办,学会编码密码及相关组合理论专业委员会、洛阳师范学院承办,学会图论组合及应用专业委员会协办的“第十届有限域及其应用国际研讨会”于2021年5月20日至24日在河南...
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摩擦纳米发电机可收集全向水波能
研究人员开发了一种用于全向水波能收集的摩擦纳米发电机。图片来源:中科院北京纳米能源与系统研究所
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一起来看恒星是如何诞生的
近日,美国西北大学等天体物理学家开发了迄今为止最真实、分辨率最高的恒星形成3D模拟。他们的成果是一个非常美丽的视觉工具,当恒星在其周围出现时,观察者可以漂浮在五颜六色的气体云空间中。相关研究结果发表于《...
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卫星观测多光谱遥感图像云检测方法研制成功
云是重要的气象和气候要素之一,通过云的分布不但可以帮助发现危险的气候现象,如暴风,飓风以及龙卷风,而且还可以跟踪气候现象的变化。但与此同时,由于光学遥感数据中大量云的存在,影响了遥感图像的质量,从而降...
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Declassified Cold   War code-breaking manual has lessons for solving 'impossible' puzzles
The United States National Security Agency—the country's premier   signals intelligence organization—recently declassified a Cold War-era   document about code-breaking.
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Candy-Like Models   Used to Make STEM Accessible to Visually Impaired Students
About 36 million people have blindness including 1 million   children. Additionally, 216 million people experience moderate to severe   visual impairment. However, STEM (science, technology, engineering a...
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深度学习的“瓶颈”与“遛狗”定理
在科技历史上,数学为工程技术提供了理论基础、指引了未来发展方向;反过来,工程技术为数学提出了新的挑战,推动了数学理论的发展。深度学习和最优传输理论再度验证了这一历史发展模式。   深度学习的社会学瓶颈 深度...
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Scientists   recognize intruders in noise
A team of scientists from MIPT and Kazan National Research   Technical University is developing a mathematical apparatus that could lead   to a breakthrough in network security. The results of the work ha...
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These cognitive   exercises help young children boost their math skills, study shows
Young children who practice visual working memory and reasoning   tasks improve their math skills more than children who focus on spatial   rotation exercises, according to a large study. The findings sup...
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聂家旺教授荣获第十四届“   “冯康科学计算奖”
2021年5月6日,第十四届“冯康科学计算奖”评选结果在北京揭晓。聂家旺教授因其在多项式优化、凸代数几何和张量计算等方面的突出贡献,荣膺“冯康科学计算奖”。聂家旺,加州大学圣地亚哥分校教授,湘潭大学兼...
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找到反例!博士后数学家推翻困扰数学界80多年的单位猜想
选自Quanta Magazine 作者:Erica Klarreich 机器之心编译   强大的理论本身就有其美丽和优雅,但如果一切都是死板的,那岂不是非常枯燥? 近日,一位名为 Giles Garda...
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数学的起源(上)
本文结合数学史和人类文明史谈数学的起源。 1 数学演化的历史 动物也具有数学本能。   比如,蜜蜂建造的蜂巢,是严格的六角柱形体。它的一端是六角形开口,另一端则是封闭的六角棱锥体的底,由三个相同的菱形组成...
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When will your   elevator arrive? Two physicists do the math
The human world is, increasingly, an urban one—and that means   elevators. Hong Kong, the hometown of physicist Zhijie Feng (Boston   University), adds new elevators at the rate of roughly 1500 every yea...
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Cylinder-Cylinder   Intersection
Consider two cylinders as illustrated above (Hubbell 1965) where   the cylinders have radii r_1 and r_2 with r_1
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Steinmetz Solid
The Steinmetz solid is the solid common to two (or three) right   circular cylinders of equal radii intersecting at right angles is called the   Steinmetz solid. Two cylinders intersecting at right angles...
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Global Clustering   Coefficient
The global clustering coefficient C of a graph G is the ratio of   the number of closed trails of length 3 to the number of paths of length two   in G. Let A be the adjacency matrix of G. The number of...
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国家天元数学东南中心召开“李代数及相关问题学术研讨会”
2021年4月23日-4月26日,李代数及相关问题学术研讨会在国家天元数学东南中心举行。来自美国北卡州立大学的景乃桓教授、上海交通大学的姜翠波教授、同济大学的苏育才教授、清华大学的张贺春教授、北京理工...
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应用数学新时代的曙光   (根据鄂维南院士的文章归纳总结)
本文归纳总结自鄂维南院士的文章 The Dawning of a New Era in Applied   Mathematics,文章来自 https://www.ams.org/journals/n...
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戴彧虹应邀做2022国际数学家大会邀请报告
中国运筹学会理事长、中国科学院数学与系统科学研究院冯康首席研究员戴彧虹近日收到邀请,将在俄罗斯圣彼得堡召开的2022年国际数学家大会做45分钟邀请报告。戴彧虹长期从事优化方法的理论及应用研究,在连续优...
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Repunit
A repunit is a number consisting of copies of the single digit   1. The term "repunit" was coined by Beiler (1966), who also gave   the first tabulation of known factors. In base-10, repunits have the ...
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Integer Sequence   Primes
Just as many interesting integer sequences can be defined and   their properties studied, it is often of interest to additionally determine   which of their elements are prime. The following table summari...
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Auxin makes the   spirals in gerbera inflorescences follow the Fibonacci sequence
The meristem of the gerbera is patterned on the molecular level   already at a stage where no primordia or other changes are discernible by   even an electron microscope.
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十大数字创新技术出炉   中国“九章”榜上有名
联合国教科文组织2021年Netexplo创新论坛于2021年4月14日至15日在网上举行。由技术领域全球知名大学组成的Netexplo大学网络历时一年,在全球范围内遴选出了10项极具突破性的数字创新技术,这些创新对社会具有深远而持...
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十大数字创新技术出炉   中国“九章”榜上有名
联合国教科文组织2021年Netexplo创新论坛于2021年4月14日至15日在网上举行。由技术领域全球知名大学组成的Netexplo大学网络历时一年,在全球范围内遴选出了10项极具突破性的数字创新技术,这些创新对社会具有深远而持...
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比特币与减排(汪寿阳、洪永淼等)
2021年4月6日,中国科学院预测科学研究中心汪寿阳和洪永淼团队与清华大学关大博合作,中国科学院大学博士研究生姜尚荣和硕士研究生李育泽为共同第一作者,以“Policy   assessments for the carbon emission flows and...
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New modeling   provides greater scrutiny for supply chains
Unethical or destructive practices can be hidden within supply   chains bringing us items we want and need. Dr. Arne Geschke uses data to   drill into the complex global production web.
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Big data tells   story of diversity, migration of math's elite
Math's top prize, the Fields Medal, has succeeded in making   mathematics more inclusive, but still rewards elitism, according to a   Dartmouth study.
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Math Can Help   Build a Global Digital Community
When the COVID-19 pandemic struck New York last March and the   National Museum of Mathematics (MoMath) closed its doors to the public,   little did we realize we were about to open a virtual door to the ...
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第一届CSIG图像图形高峰论坛在南宁召开
2021年3月27日,第一届CSIG图像图形高峰论坛在广西南宁顺利召开,本次论坛由中国图象图形学学会(CSIG)主办,广西大学承办,CSIG脑图谱专业委员会、CSIG视频图像与安全专业委员会、CSIG...
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科学家实现模型铝离子电池在线表界面表征—论文—科学网
近年来,借助X射线衍射、X射线吸收谱、透射电子显微镜、核磁共振谱等多种原位在线表征方法,科研人员对电池的储能过程进行了大量研究,获得了许多关于电极或电解质的体相信息。然而,电极表界面的在线表征研究仍然.....
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中科院-华为·   ICT领域的数学专题研讨班 通知
中科院-华为·   ICT领域的数学专题研讨班之一:图网络理论与应用图网络模型、理论和算法在许多前沿领域显示了强大的基础性作用,并得到广泛应用。为了进一步探讨图分析、图计算、图神经网络等技术的理论与应用,...
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科技创新必须重视基础学科
26岁攻克数学世界难题、任中国科学技术大学特任教授的年轻数学家陈杲,近日被网友纷纷称赞“硬核”,再一次引发大家对数理化等基础学科的关注。...
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上海光机所在高阈值宽带低色散反射镜研究中获进展
近日,中国科学院上海光学精密机械研究所薄膜光学实验室在高阈值宽带低色散反射镜研究中取得新进展。研究人员基于金属介质低色散镜的损伤机理,通过界面增强技术,将损伤阈值提升22%。相关研究成果已发表在Optics   Ex...
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北京国际数学研究中心周晓华发文报道用高维协变量发现个性化治疗规则
2021年3月9日,北京国际数学研究中心周晓华教授与他人合作的文章“Estimation of Optimal   Individualized Treatment Rules Using a Covar...
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欧拉公式与二进制在数据科学中获新应用—论文—科学网
欧拉公式是很多数学方向的根基,而二进制是计算机理解人类世界的语言。近日,美国北卡罗莱纳大学教堂山分校教授张凯、天普大学教授赵志根以及科罗拉多州立大学教授周文利用对连续随机变量的二进制逼近,在数据科学中...
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Cybersecurity   pioneers win mathematics Abel Prize
The Abel Prize, which honours achievements in mathematics, was   awarded Wednesday to Hungarian Laszlo Lovasz and Israeli Avi Wigderson for   their contributions to computer security, the Norwegian Academ...
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Data scientists   build more honest prediction models
On Nov. 3, 2020—and for many days after—millions of people kept   a wary eye on the presidential election prediction models run by various news   outlets. With such high stakes in play, every tick of a ...
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Avi Wigderson:   "It's good to have hard problems"
You are faced with a difficult problem, it is not easily solved.   How do you feel? Well, if you are Avi Wigderson, one of the winners of the   2021 Abel Prize, you are very happy!
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László Lovász:   Working mathematical miracles
"Mathematics always has a miracle part, the mystical   part," the mathematician Szedegy has said. "Somebody works on a   problem and suddenly the miracle happens and the new result comes."   Talking abou...
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Mathon Graphs
The Mathon graphs are three strongly regular graphs on 784   vertices with regular parameters as summarized in the following tables. k   spectrum regula
Cybersecurity   pioneers win mathematics Abel Prize
The Abel Prize, which honours achievements in mathematics, was   awarded Wednesday to Hungarian Laszlo Lovasz and Israeli Avi Wigderson for   their contributions to computer security, the Norwegian Academ...
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Data scientists   build more honest prediction models
On Nov. 3, 2020—and for many days after—millions of people kept   a wary eye on the presidential election prediction models run by various news   outlets. With such high stakes in play, every tick of a ...
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Avi Wigderson:   "It's good to have hard problems"
You are faced with a difficult problem, it is not easily solved.   How do you feel? Well, if you are Avi Wigderson, one of the winners of the   2021 Abel Prize, you are very happy!
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László Lovász:   Working mathematical miracles
"Mathematics always has a miracle part, the mystical   part," the mathematician Szedegy has said. "Somebody works on a   problem and suddenly the miracle happens and the new result comes."   Talking abou...
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Mathon Graphs
The Mathon graphs are three strongly regular graphs on 784   vertices with regular parameters as summarized in the following tables. k   spectrum regula
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银河系生存要领:逃避致命星系爆炸—论文—科学网
在大约4.45亿年前的奥陶纪末期,一股太空辐射的爆发可能导致了大灭绝。图片来源:Richard Jones/Science   Photo Library...
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研究揭示吸热电荷分离态介导三线态能量转移机制—论文—科学网
近日,中科院大连化物所研究员吴凯丰团队在无机/有机界面三线态能量转移动力学研究方面取得新进展,首次提出并在实验上论证了吸热电荷分离态介导的三线态能量转移新机制。相关研究发表在《自然—通讯》上。...
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“国际数学日”探索数学与人工智能
随着科学技术的发展,人工智能日益受到人们关注,并在人们的日常生活中得到广泛应用。在这个炙手可热的科学研究领域里,科学之母数学起着什么样的作用呢?   2019年11月26日,联合国教科文组织宣布3月14日...
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2021阿贝尔奖授予理论计算机科学和离散数学
拉兹洛·洛瓦兹(László Lovász,左)、艾维·维格森(Avi Wigderson)...
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The Mathematics   of How Connections Become Global
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如何用微积分对抗HIV?
编者按:   你的微积分学得怎么样?在高中和大学时期,可能我们中的许多人都对这门课程退避三舍,也听到过这种说法:“干嘛要学微积分?我买菜又用不到”,那么微积分究竟有什么用?   尽管微分是思维的虚构产物,但自.....
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3的三个整数立方和有多少个解?全球40万台计算机助力,MIT研究登上PNAS
机器之心报道 编辑:魔王、杜伟 三立方数和一直是困扰数学家的难题之一,一些数字的求解非常简单,例如 29 可以写成   3^3+1^3+1^3 (27 + 1 + 1)。2019 年,MIT 数学家 An...
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天体物理学家周又元院士逝世
中国科学院院士,中国科学院大学教授、国家天文台研究员周又元,因病医治无效,于2021年3月12日在北京逝世,享年82岁。...
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周向宇:从复数谈起(下)
本文由周向宇院士12月16日于北航沙河校区所作报告整理而成(部分内容),数学经纬网授权发布。 周向宇   中国科学院数学与系统科学研究院研究员,中国科学院院士,发展中国家科学院院士。周院士主要从事多复变...
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600多页、8年等待,望月新一证明abc猜想的论文终于正式发表
机器之心报道 作者:维度 尘埃落定!近日,日本数学家望月新一证明 abc 猜想的 600   多页论文终于正式发表,也让他长达八年的等待没有白费。 在数学领域,abc 猜想(abc conjecture)...
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困扰菲尔兹奖得主数十年的高维几何难题,被90后华人博士后解决了
机器之心报道 编辑:小舟、陈萍 近日,Bourgain 截面问题与 KLS 猜想数学难题,被一位 90   后华人博士解决,并获得数学领域知名学者的赞扬。 比利时数学家 Jean Bourgain 于 1...
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总书记谈数学、创新与科普:奥巴马告诉我,他最佩服中国的高铁和数学教育
谈数学 奥巴马总统告诉我,佩服中国的一是高铁,二是你们的数学教育。   “我们的教育改革要坚持文化自信,好的经验要坚持,不足的要补齐。” “别人学咱们,咱们自己倒改没了,这样不好。教育改革必须有足够的定力......
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2021年模式识别高峰论坛成功举办
3月6日,2021年模式识别高峰论坛在线上成功举办。本次模式识别高峰论坛,由中国自动化学会、中国人工智能学会、中国图象图形学学会和北京科技大学共同主办,中国自动化学会模式识别与机器智能专委会、中国人工...
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国际数学日科普报告
2021年3月14日国际数学日下午3点至6点30,中国数学会联合中国工业与应用数学学会和中国运筹学会举办科普报告活动。 主 题   报 告 ● 科普主题:数学与人工智能 ● 科普摘要:这个报告将探讨如下问...
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CSIG图像图形中国行将于3月27日在大连理工大学召开
活动简介   “CSIG图像图形中国行”旨在推动图像图形学科的普及,加强各高校科研以及与企业间的合作交流。自2017年4月起,分别在扬州大学、哈尔滨工业大学、兰州大学、杭州电子科技大学、北京交通大...
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诚邀您参加!国际数学日科普报告
2021/3/9
由中国数学会主办、中国工业与应用数学学会和中国运筹学会协办的国际数学日网络科普报告将于3月14日下午15:00至18:30直播举行,诚挚邀请您参与此次活动,畅游数学的奇妙世界!
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巨星陨落!数学家周毓麟院士逝世
2021/3/3
中国科学院院士、著名数学家、中国工程物理研究院研究员周毓麟,因病医治无效,于2021年3月2日在北京去世,享年98岁。
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中国科大在复微分几何领域取得进展
2021/3/1
 近日,中国科学技术大学几何与物理研究中心特任教授陈杲的研究论文《J方程和超临界厄米特-杨振宁-米尔斯方程的变形》在线发表在《数学新进展》(Inventiones   Mathematicae)上。
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Early-warning for   seizures could be a game-changer for epilepsy patients
2021/3/1
A research team has developed mathematical model to predict   seizures that will give epilepsy patients an accurate warning five minutes to   one hour before they are likely to experience a seizure.
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Implies
2021/3/1
"Implies" is the connective in propositional calculus   which has the meaning "if A is true, then B is also true." In   formal terminology, the term conditional is often used to refer to this   connective (...
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Order of   Magnitude
2021/3/1
Physicists and engineers use the phrase "order of   magnitude" to refer to the smallest power of ten needed to represent a   quantity. Two quantities A and B which are within about a factor of 10 of   each ...
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Asymptotic   Notation
2021/3/1
Let n be an integer variable which tends to infinity and let x   be a continuous variable tending to some limit. Also, let phi(n) or phi(x) be   a positive function and f(n) or f(x) any function. Then Har...
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Exists
2021/3/1
If there exists an A, this is written exists A. Similarly,   "A does not exist" is written notexists A. exists is one of the two   mathematical objects known as quantifiers. The Wolfram Language expres...
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For All
2021/3/1
If a proposition P is true for all B, this is written P forall   B. forall is one of the two so-called quantifiers, and translates the   universal quantifier forall . The Wolfram Language expression Fo...
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Generic   Cylindrical Algebraic Decomposition
2021/3/1
A cylindrical algebraic decomposition that omits sets of measure   zero. Generic cylindrical algebraic decompositions are generally much quicker   to compute than are normal decompositions. Generic cylind...
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Graph Coarseness
2021/3/1
The coarseness xi(G) of a graph G is the maximum number of   edge-disjoint nonplanar subgraphs contained in a given graph G. The   coarseness of a planar graph G is therefore xi(G)=0. The coarseness of...
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带复乘椭圆曲线上的p-逆定理(田野)
2021/3/1
SD猜想是Clay数学研究所在2000年提出的七大千禧年数学难题之一。指出了椭圆曲线的Mordell-Weil   群和它的L-函数的关系。BSD猜想分为秩部分和公式部分。BSD猜想的秩部分可以陈述为:
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不可压缩Navier-Stokes方程新进展(张平)
2021/3/1
对经典不可压缩Navier-Stokes   方程:关于该问题的整体正则性是Clay研究所公布的七大千禧年问题之一。我们[7]证明了只要初始速度的一个方向导数在临界函数空间中充分小时,该问题存在唯一整体解,根据此条件,   我们构...
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《细胞》论文揭示三维基因组参与人类大脑发育的进化机制(张世华等)
2021/3/1
2021年1月27日,中国科学院数学与系统科学研究院张世华研究员与中国科学院昆明动物研究所宿兵研究员、北京大学生命科学学院李程研究员团队合作,以“3D   Genome of macaque fetal brain reveals evolutionary innovat...
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Asymptotic
2021/3/1
Informally, the term asymptotic means approaching a value or   curve arbitrarily closely (i.e., as some sort of limit is taken). A line or   curve A that is asymptotic to given curve C is called the asymp...
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部分国内学术平台一周活动纵览(2020.12.14--12.16)
“九章”到底有多神
汤涛院士科普讲座:《圆周率计算与现代计算数学》
纪念廖山涛先生诞辰100周年暨微分动力系统研讨会在北京大学举行
Getting to the   Core of Nuclear Speckles
Math Enables   Custom Arrangements of Liquid 'Nesting Dolls'
数学家精神与中国现代数学发展学术研讨会在北京举行
Study: Students   falling behind in math during pandemic
Mathematician   suggests new approach to cooperative game
Giving numbers   meaning
关于2020年度中国图象图形学学会自然科学奖、技术发明奖、科技进步奖评选结果的公示
关于 “Li-Yorke 浑沌”   的故事
第三届“青托”项目结题报告会在京举办
数学正青春,共筑强国梦---系列(二)欧文浩:“别人家的孩子”也有过“至暗时刻”
Independent   Dominating Set
改善人民生活品质提高社会建设水平
COVID-19:   students caught in Pakistan’s digital divide
促进经济社会发展全面绿色转型
一个值得高度重视的重大判断
把科技自立自强作为国家发展的战略支撑
金天栋:理解共同体的社会基础变化:以“关系范式”为研究进路
五项考古新发现让夏文化更可信
数字人文国际高峰论坛召开
“迈向十四五”专家访谈②|徐华亮:科技自立自强,为了更多的“从0到1”
杨顺顺《学习时报》:推进绿色发展国际科技合作
马俊毅:重大突发公共事件中的中华民族共同体意识及治理价值
“迈向十四五”专家访谈①|汤建军:变化,为了两个百年交汇间的过渡与衔接
Evolutionary   Changes in an Extinct Human Species
New evidence on   the earliest domesticated animals and possible small-scale husbandry in   Atlantic NW Europe
“第三届社会责任论坛(2020):疫情风险与社会责任治理”第二轮征文通知