搜索结果: 136-150 共查到“会议中心 理学 mathematics”相关记录670条 . 查询时间(0.073 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A New Framework for SIMD Bootstrapping in Polynomial Modulus
多项式 模数 SIMD自举 新框架
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2023/4/28
In this series of work, we aim at improving the bootstrapping paradigm for fully homomorphic encryption (FHE). Our main goal is to show that the amortized cost of bootstrapping within a polynomial mod...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Capsule Aggregated Attention for Vehicle Routing Problems
车辆 路径问题 胶囊聚合 关注
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2023/4/27
Deep learning based methods have shown great potential for solving Vehicle Routing Problems (VRPs) in recent years. In the current learning based models, attention mechanism plays an important role an...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Solving hidden number problem with lattice sieving
晶格筛分 隐数问题 格约简算法
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2023/4/28
Lattice reduction algorithms have been proved to be one of the most powerful and versatile tools in public key cryptanalysis. In this talk, we primarily concentrate on lattice attacks against (EC)DSA ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：First-order factors of linear Mahler operators
线性 Mahler operators 一阶因子
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2023/4/27
We develop and compare two algorithms for computing first-order right-hand factors in the ring of linear Mahler operators l_r M^r+?+l_1 M+l_0 where l_0,…,l_r are polynomials in x and Mx=x^b M for some...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamic inference for left behind probabilities on congested metro routes
动态推理 拥挤地铁路线 落后概率
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2023/4/26
Passengers left behind is an important measure to describe the degree of congestion in metro systems. Note that passengers' left behind probabilities are different for their different tap-in times. Th...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Integral equations with bubble-type kernel via the method of moving spheres
运动球体 气泡型核 积分方程
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2023/4/27
In this talk, I will describe a moving sphere approach to a class of integral equations with bubble-type kernel. This class of equations comes from higher-order elliptic equations on the standard sphe...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Multiple solutions for semilinear subelliptic Dirichlet problem
半线性 次椭圆 狄利克雷问题 多种解
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2023/4/27
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Multiple solutions for semilinear subelliptic Dirichlet problem。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The regularity with respect to domains of the additive eigenvalues of super-quadratic Hamilton-Jacobi equation
超二次 哈密尔顿-雅可比方程 加性特征值域 规律性
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2023/4/27
Viewingtheadditiveeigenvaluesasamapwithrespecttodomainperturbationbyscal- ing, we show that this map enjoys some regularity. Precisely, let c(λ) be the additive eigenvalue with respect to (1 + r(λ))Ω,...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Long time behavior of the Sine-Gordon equation
正弦 戈登方程 长时间行为 黎曼-希尔伯特问题
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2023/4/26
We use the nonlinear steepest descent for Riemann-Hilbert problems to compute the long-time asymptotics of the solutions to the sine-Gordon equation whose initial condition belongs to some weighted So...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Balanced Boolean Functions with Good Autocorrelation Spectra and Their Applications
自相关谱 平衡 布尔函数
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2023/4/26
In this talk we consider the maximum absolute value in the autocorrelation spectrum (not considering the zero point) of balanced Boolean function. The long-standing open question in this area is to ob...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：若干信息重构问题的理论与算法
信息重构 理论 算法
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2023/4/26
数学作为一门基础学科，在科学的研究中扮演着无可替代的角色。但是数学的研究与工程应用之间存在着一道鸿沟。如何针对实际问题的需求，进行相关数学研究是目前应用数学与计算数学研究的一个热点方法。在本报告，我们主要介绍了我们团队最近的两项相关的研究成果。1、基于微分方程模型的由局部信息重构全局信息的问题，即从方程的内部观测值如何重构方程解的问题。这是一个具有重要实际和应用前景的问题。但是，数学理论的结果说明...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：复杂目标电磁建模与计算：区域分解方法研究及进展
复杂目标 电磁建模 区域分解方法
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2023/4/24
电磁建模与计算在雷达目标探测与识别、隐身与反隐身、电磁兼容性分析、无线通讯等诸多领域有着重要的需求，是长期以来国内外同行关注的重点方向。随着科学计算方法和高性能计算技术的飞速发展，电磁建模与计算研究取得了长足的进步，然而针对计算目标越来越复杂，计算需求越来越高，电磁建模与计算面临一系列的挑战。本报告重点介绍了区域分解方法研究及进展，包括基于积分方程方法、有限元方法、有限元-边界元混合方法的区域分解...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Singular Solutions to the Yamabe Equation with Prescribed Asymptotics
规定渐近 山部方程 奇异解
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2023/4/25
We study positive solutions of the Yamabe equation with isolated singularity and prove the existence of solutions with prescribed asymptotic expansions near singular points and an arbitrarily high ord...
Frontiers of Mathematics和《数学进展》2023年编委会议成功召开（图）
Frontiers of Mathematics 数学进展 2023年
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2023/6/16
近日，由北京大学主办/承办的FrontiersofMathematics和《数学进展》先后举行2023年编委会议。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Computation and Design of Electrochemical Energy Storage Materials
电化学 储能材料 计算设计
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2023/4/25
The key to electrochemical energy storage systems such as Li/Na-ion batteries is materials. The traditional method for exploring new materials is trial-and-error, which often takes a dozen years durin...