期刊文献+
共找到1,510篇文章
< 1 2 76 >
每页显示 20 50 100
The SYZ Conjecture through Computational Equivalence
1
作者 Logan Nye 《Advances in Pure Mathematics》 2025年第2期145-181,共37页
We present a proof of the Strominger-Yau-Zaslow (SYZ) conjecture by demonstrating that mirror symmetry fundamentally represents an equivalence of computational structures between Calabi-Yau manifolds. Through developm... We present a proof of the Strominger-Yau-Zaslow (SYZ) conjecture by demonstrating that mirror symmetry fundamentally represents an equivalence of computational structures between Calabi-Yau manifolds. Through development of a rigorous quantum complexity operator formalism, we show that mirror pairs must have equivalent complexity spectra and that the SYZ fibration naturally preserves these computational invariants while implementing the required geometric transformations. Our proof proceeds by first establishing a precise mathematical framework connecting quantum complexity with geometric structures, then demonstrating that the special Lagrangian torus fibration preserves computational complexity at both local and global levels, and finally proving that this preservation necessarily implies the geometric correspondences required by the SYZ conjecture. This approach not only resolves the conjecture but reveals deeper insights about the relationship between computation and geometry in string theory. We introduce new complexity-based invariants for studying mirror symmetry and demonstrate how our framework extends naturally to related geometric structures. 展开更多
关键词 Mirror Symmetry Calabi-Yau Manifolds SYZ conjecture Quantum Complexity Special Lagrangian Fibration
在线阅读 下载PDF
How to Prove Riemann Conjecture by Riemann’s Four Theorems
2
作者 Chuanmiao Chen 《Advances in Pure Mathematics》 2024年第8期619-632,共15页
Riemann (1859) had proved four theorems: analytic continuation ζ(s), functional equation ξ(z)=G(s)ζ(s)(s=1/2+iz, z=t−i(σ−1/2)), product expression ξ1(z)and Riemann-Siegel formula Z(z), and proposed Riemann conjec... Riemann (1859) had proved four theorems: analytic continuation ζ(s), functional equation ξ(z)=G(s)ζ(s)(s=1/2+iz, z=t−i(σ−1/2)), product expression ξ1(z)and Riemann-Siegel formula Z(z), and proposed Riemann conjecture (RC): All roots of ξ(z)are real. We have calculated ξand ζ, and found that ξ(z)is alternative oscillation, which intuitively implies RC, and the property of ζ(s)is not good. Therefore Riemann’s direction is correct, but he used the same notation ξ(t)=ξ1(t)to confuse two concepts. So the product expression only can be used in contraction. We find that if ξhas complex roots, then its structure is destroyed, so RC holds. In our proof, using Riemann’s four theorems is sufficient, needn’t cite other results. Hilbert (1900) proposed Riemann hypothesis (RH): The non-trivial roots of ζhave real part 1/2. Of course, RH also holds, but can not be proved directly by ζ(s). 展开更多
关键词 Riemann conjecture ZETA-FUNCTION Xi-Function Functional Equation Product Expression CONTRADICTION
在线阅读 下载PDF
Presentation of the Berry-Tabor conjecture in Levy plates
3
作者 Chao Li Guo-Lin Hou 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第10期240-247,共8页
The Berry-Tabor(BT)conjecture is a famous statistical inference in quantum chaos,which not only establishes the spectral fluctuations of quantum systems whose classical counterparts are integrable but can also be used... The Berry-Tabor(BT)conjecture is a famous statistical inference in quantum chaos,which not only establishes the spectral fluctuations of quantum systems whose classical counterparts are integrable but can also be used to describe other wave phenomena.In this paper,the BT conjecture has been extended to Lévy plates.As predicted by the BT conjecture,level clustering is present in the spectra of Lévy plates.The consequence of level clustering is studied by introducing the distribution of nearest neighbor frequency level spacing ratios P(r),which is calculated through the analytical solution obtained by the Hamiltonian approach.Our work investigates the impact of varying foundation parameters,rotary inertia,and boundary conditions on the frequency spectra,and we find that P(r)conforms to a Poisson distribution in all cases.The reason for the occurrence of the Poisson distribution in the Lévy plates is the independence between modal frequencies,which can be understood through mode functions. 展开更多
关键词 Berry-Tabor conjecture frequency spectra Hamiltonian approach Lévy plates
原文传递
Natural Numbers and the Strong Goldbach Conjecture
4
作者 Ramon Carbó-Dorca 《Journal of Applied Mathematics and Physics》 2024年第9期3208-3236,共29页
This study introduces the representation of natural number sets as row vectors and pretends to offer a new perspective on the strong Goldbach conjecture. The natural numbers are restructured and expanded with the incl... This study introduces the representation of natural number sets as row vectors and pretends to offer a new perspective on the strong Goldbach conjecture. The natural numbers are restructured and expanded with the inclusion of the zero element as the source of a strong Goldbach conjecture reformulation. A prime Boolean vector is defined, pinpointing the positions of prime numbers within the odd number sequence. The natural unit primality is discussed in this context and transformed into a source of quantum-like indetermination. This approach allows for rephrasing the strong Goldbach conjecture, framed within a Boolean scalar product between the prime Boolean vector and its reverse. Throughout the discussion, other intriguing topics emerge and are thoroughly analyzed. A final description of two empirical algorithms is provided to prove the strong Goldbach conjecture. 展开更多
关键词 Natural Numbers Prime Numbers Vector Description of Natural Numbers Prime Boolean Vectors Primality of the Natural Unit Strong Goldbach’s conjecture Vector Reversal Pairing conjecture Natural Matrix Squeezing
在线阅读 下载PDF
The Erdös-Faber-Lovász Conjecture for Gap-Restricted Hypergraphs
5
作者 Zhimin Wang 《Engineering(科研)》 2024年第2期47-59,共13页
An edge coloring of hypergraph H is a function   such that  holds for any pair of intersecting edges . The minimum number of colors in edge colorings of H is called the chromatic index of H and is ... An edge coloring of hypergraph H is a function   such that  holds for any pair of intersecting edges . The minimum number of colors in edge colorings of H is called the chromatic index of H and is denoted by . Erdös, Faber and Lovász proposed a famous conjecture that  holds for any loopless linear hypergraph H with n vertices. In this paper, we show that  is true for gap-restricted hypergraphs. Our result extends a result of Alesandroni in 2021. 展开更多
关键词 Linear Hypergraph Chromatic Index Erdös-Faber-Lovász conjecture Edge Cardinality
在线阅读 下载PDF
The Coxeter Trisection and the Hadwiger Conjecture in Multidimensional Spaces
6
作者 István Lénárt 《Journal of Applied Mathematics and Physics》 2024年第12期4301-4321,共21页
In this article, I consider the right triangle as the simplex in the Euclidean plane, and extend this definition to higher dimensions. The n-dimensional simplex has one hypotenuse and (n−1)legs (catheti). The (n−1)leg... In this article, I consider the right triangle as the simplex in the Euclidean plane, and extend this definition to higher dimensions. The n-dimensional simplex has one hypotenuse and (n−1)legs (catheti). The (n−1)legs define an orthogonal path of edges in the solid with perpendicular adjacent edges along the path. The length of the hypotenuse and the volume of the solid can be calculated without the Cayley-Menger determinant, by direct extension of the corresponding right triangle formulas. I give a proof of the existence of these shapes, describe the distribution of right angles in them, give an algebraic proof of the Coxeter trisection of a right tetrahedron into three smaller right tetrahedra, and generalize this construction to n-dimensional spaces. Finally, I investigate the connection between the Coxeter partition and the Hadwiger conjecture on the partition of the simplex into orthoschemes, which I call Pythagorean simplexes. 展开更多
关键词 Generalized Pythagoras Theorem Description of a Pythagorean Simplex Pythagorean Unit Simplex Coxeter Partition of a Simplex in -Dimensional Space Relation to the Hadwiger conjecture
在线阅读 下载PDF
调和分析及相关领域中的公开问题
7
作者 苗长兴 《数学年刊(A辑)》 北大核心 2025年第1期1-54,共54页
适逢Wang-Zahl[Wang H,Zahl J.Volume estimates for unions of convex sets,and the Kakeya set conjecture in three dimensions[J/OLl.arXiv:2502.17655,2025.]宣布解决三维Kakeya几何猜想之际,撰写此综述文章介绍调和分析及相关领... 适逢Wang-Zahl[Wang H,Zahl J.Volume estimates for unions of convex sets,and the Kakeya set conjecture in three dimensions[J/OLl.arXiv:2502.17655,2025.]宣布解决三维Kakeya几何猜想之际,撰写此综述文章介绍调和分析及相关领域中的公开问题.围绕Kakeya猜想(源于几何测度论,分析版本对应Kakeya极大猜想)、限制性猜想、Bochner-Riesz猜想、局部光滑性猜想等四大猜想的研究,发展了诸如解析插值方法、正交性与双线性方法,Heisenberg不确定原理与局部化方法、微局部分析与驻相分析,催生了波包分解与尺度归纳,多线性理论、Bourgain-Guth的broad-narrow分析、关联几何及多项式方法,特别是"Wolff及Bourgain-Demeter等发展的解耦方法,不仅推动了调和分析中四大猜想的研究,同时也为解决其他数学领域的重要问题提供了一系列强有力工具. 展开更多
关键词 Kakeya猜想 限制性猜想 振荡积分算子 Fourier积分算子 解耦方法
在线阅读 下载PDF
第二类Cartan-Hartogs域上的陆启铿猜想
8
作者 程晓亮 崔婉莹 《廊坊师范学院学报(自然科学版)》 2025年第1期18-22,共5页
对于第二类Cartan-Hartogs域Y_(Ⅱ)(N,p;K),已知其Bergman核函数的有限和形式,运用全纯自同构变换、变量替换等方法,将Bergman核函数零点问题转化为对多项式零点问题的讨论。主要讨论了域Y_(Ⅱ)(N,1;K),Y_(Ⅱ)(N,2;K)为陆启铿域的充要... 对于第二类Cartan-Hartogs域Y_(Ⅱ)(N,p;K),已知其Bergman核函数的有限和形式,运用全纯自同构变换、变量替换等方法,将Bergman核函数零点问题转化为对多项式零点问题的讨论。主要讨论了域Y_(Ⅱ)(N,1;K),Y_(Ⅱ)(N,2;K)为陆启铿域的充要条件。 展开更多
关键词 陆启铿猜想 陆启铿域 BERGMAN核函数 CARTAN-HARTOGS域
在线阅读 下载PDF
电-碳耦合市场的推测变差均衡
9
作者 任彦哲 周越 +3 位作者 李更丰 别朝红 吴建中 张润凡 《电力系统自动化》 北大核心 2025年第6期33-46,共14页
随着碳排放权配额和交易机制的应用,电力生产商因其电能生产功能及碳排放特性,将电力市场和碳市场这两个独立运行的市场耦合起来。首先,为展示寡头垄断环境下电-碳耦合市场中各个市场主体如何行使市场力、影响市场价格,使用推测变差系... 随着碳排放权配额和交易机制的应用,电力生产商因其电能生产功能及碳排放特性,将电力市场和碳市场这两个独立运行的市场耦合起来。首先,为展示寡头垄断环境下电-碳耦合市场中各个市场主体如何行使市场力、影响市场价格,使用推测变差系数刻画其策略性行为,建立了电-碳耦合市场的推测变差均衡模型。然后,从定义出发,证明了市场均衡解中碳排放权价格的本质是碳排放权配额平衡约束的对偶乘子,可以反映其由碳排放权配额供需决定的波动特性。最后,通过IEEE 9节点测试系统中不同场景的数值结果对比,展示了输电线路阻塞、市场竞争方式、发电成本和碳排放权配额等因素对市场均衡的影响;并以中国甘肃实际电力系统为例,说明了碳排放权配额和交易机制对可再生能源发电的激励作用以及对碳排放总量的控制作用。 展开更多
关键词 电力市场 碳市场 推测变差均衡 碳排放权配额
在线阅读 下载PDF
完全二部图的Gallai猜想 被引量:1
10
作者 耿显亚 柴惠 《运筹学学报(中英文)》 北大核心 2025年第1期232-238,共7页
设G是具有n个顶点的简单连通图。Gallai于1966年提出关于图的路分解猜想:每个n阶简单连通图G都可以被分解为至多[n/2]条路。在本文中,我们利用算法证明了Gallai猜想对于完全二部图Kn_(1),n_(2)成立,这里1≤n_(2)<n_(1)且n_(1)是奇数... 设G是具有n个顶点的简单连通图。Gallai于1966年提出关于图的路分解猜想:每个n阶简单连通图G都可以被分解为至多[n/2]条路。在本文中,我们利用算法证明了Gallai猜想对于完全二部图Kn_(1),n_(2)成立,这里1≤n_(2)<n_(1)且n_(1)是奇数。结合Constantinou和Ellinas(2018)的结果,我们证明了对于任意的完全二部图,Gallai猜想成立。 展开更多
关键词 完全二部图 路分解 Gallai猜想
在线阅读 下载PDF
Nowhere-zero 5-fows for graphs with bounded genus
11
作者 LI Jiaao SU Bo 《运筹学学报(中英文)》 北大核心 2025年第3期124-134,共11页
A nowhere-zero k-flow on a graph G=(V(G),E(G))is a pair(D,f),where D is an orientation on E(G)and f:E(G)→{±1,±2,,±(k-1)}is a function such that the total outflow equals to the total inflow at each vert... A nowhere-zero k-flow on a graph G=(V(G),E(G))is a pair(D,f),where D is an orientation on E(G)and f:E(G)→{±1,±2,,±(k-1)}is a function such that the total outflow equals to the total inflow at each vertex.This concept was introduced by Tutte as an extension of face colorings,and Tutte in 1954 conjectured that every bridgeless graph admits a nowhere-zero 5-flow,known as the 5-Flow Conjecture.This conjecture is verified for some graph classes and remains unresolved as of today.In this paper,we show that every bridgeless graph of Euler genus at most 20 admits a nowhere-zero 5-flow,which improves several known results. 展开更多
关键词 5-fow conjecture minimal counterexample graphs with bounded genus
在线阅读 下载PDF
关于本原商高数的Jesmanowicz猜想的一个注记
12
作者 俞佳莹 杨海 张天平 《纯粹数学与应用数学》 2025年第1期98-105,共8页
设(a,b,c)是本原商高数组,其中2|b.表示为(a,b,c)=(m^(2)-n^(2),2mn,m^(2)+n^(2)),其中m,n是正整数,满足m>n,gcd(m,n)=1且m■n(mod 2).1956年,Jesmanowicz猜想方程a^(x)+b^(y)=c^(z)只有正整数解(x,y,z)=(2,2,2).在数论中,这是一个... 设(a,b,c)是本原商高数组,其中2|b.表示为(a,b,c)=(m^(2)-n^(2),2mn,m^(2)+n^(2)),其中m,n是正整数,满足m>n,gcd(m,n)=1且m■n(mod 2).1956年,Jesmanowicz猜想方程a^(x)+b^(y)=c^(z)只有正整数解(x,y,z)=(2,2,2).在数论中,这是一个迄今未解决的问题.本文将Baker方法与初等方法相结合,推广了前人的研究结果,证明了当mn≡2(mod 4)且m>17.794n时Jesmanowicz猜想成立. 展开更多
关键词 JESMANOWICZ猜想 本原商高数组 BAKER方法 初等方法
在线阅读 下载PDF
关于Burkholder-Šverák函数拟凸性的注记
13
作者 刘卓敏 钟晓 《数学物理学报(A辑)》 北大核心 2025年第6期1747-1751,共5页
作者研究Burkholder-Šverák函数的拟凸性,并证明了一个关于径向对称函数的不等式.
关键词 Burkholder-Šverák函数 拟凸 Morrey猜想
在线阅读 下载PDF
导子为三个素数幂乘积的椭圆曲线
14
作者 蒲可莉 杨仕椿 廖群英 《数学进展》 北大核心 2025年第4期771-783,共13页
基于Mazur关于扭子群完全分类的结论,以及一些丢番图方程整数解的结果,研究了导子为三个素数幂乘积且含5阶有理点的椭圆曲线,确定了这些椭圆曲线的最小判别式,并给出了其中一些最小判别式的上界.
关键词 导子 最小判别式 椭圆曲线 Szpiro猜想
原文传递
关于二进制串的Tu-Deng猜想的注记
15
作者 朱其昂 陈龙 谭千蓉 《四川大学学报(自然科学版)》 北大核心 2025年第5期1095-1102,共8页
在现代密码设计及编码理论中,具有高代数免疫度的布尔函数起着关键作用.2011年,Tu和Deng提出了一个关于二进制字符串的组合猜想(Tu-Deng猜想),并在该猜想正确的前提下构造了两类具有高代数免疫度的布尔函数.Tu-Deng猜想指出了特定条件... 在现代密码设计及编码理论中,具有高代数免疫度的布尔函数起着关键作用.2011年,Tu和Deng提出了一个关于二进制字符串的组合猜想(Tu-Deng猜想),并在该猜想正确的前提下构造了两类具有高代数免疫度的布尔函数.Tu-Deng猜想指出了特定条件下二元序列组在汉明重量约束下的最大集合规模.设k≥2为一个正整数.对任意的正整数x=Σ_(i=0)^(∞)x_(i)2^(i),x_(i)∈{0,1},定义x的汉明重量为w(x):=Σ_(i=0)^(∞)x_(i).对任意整数t,0<t<2^(k)-1,记S^(k)_(t):={(a,b)∈Z^(2)|a+b≡t(mod 2^(k)-1),w(a)+w(b)<k,0≤a,b≤2^(k)-2}.Tu和Deng猜想|S^(k)_(t)|≤2^(k-1).迄今为止,该猜想仍是组合数学与编码理论中的一个开放问题.本文给出了当w(t)=6和7时|S^(k)_(t)|的上界,由此证明当w(t)=6和7时Tu-Deng猜想是正确的. 展开更多
关键词 Tu-Deng猜想 代数免疫 布尔函数 汉明重量
在线阅读 下载PDF
SIMONS-TYPE INTEGRAL AND HEIGHT FUNCTION IN SPHERES
16
作者 GONG Yi-fan XING Jin-xiong 《数学杂志》 2025年第2期122-130,共9页
This article delves Chern's conjecture for hypersurfaces with constant second fundamental form squared length S in the spherical space.At present,determining whether the third gap point of S is 2n remains unsolved... This article delves Chern's conjecture for hypersurfaces with constant second fundamental form squared length S in the spherical space.At present,determining whether the third gap point of S is 2n remains unsolved yet.First,we investigate the height functions and their properties of the position vector and normal vector in natural coordinate vectors,and then prove the existence of a Simons-type integral formula on the hypersurface that simultaneously includes the first,second,and third gap point terms of S.These results can provide new avenues of thought and methods for solving Chern's conjecture. 展开更多
关键词 Chern's conjecture Height function Simons-Type integral
在线阅读 下载PDF
1-退化图的乘积图的线性荫度
17
作者 刘兆志 买吐肉孜·买司地克 《山东大学学报(理学版)》 北大核心 2025年第2期51-62,共12页
由因子图的退化度来刻画乘积图的退化度,再结合关于退化图线性荫度的结论,给出笛卡尔积图和部分直积图、强积图满足线性荫度猜想的退化度条件。证明2个1-退化图字典积图满足线性荫度猜想,并给出其在大部分情况下的线性荫度。
关键词 线性荫度猜想 退化图 笛卡尔积 直积 字典积
原文传递
关于Gallai路分解猜想的一个结果
18
作者 初亚男 《苏州科技大学学报(自然科学版)》 2025年第1期28-30,73,共4页
图G的一个路分解是指将G的边集划分成一些边不交的子集,使得每个子集都是一条路且每条边恰好在一条路上。Gallai猜想每个点数为n的连通图都可分解成[n/2]条路。本文利用Lovász的路-圈构造方法证明当图的偶度点导出子图同构于K_(5),... 图G的一个路分解是指将G的边集划分成一些边不交的子集,使得每个子集都是一条路且每条边恰好在一条路上。Gallai猜想每个点数为n的连通图都可分解成[n/2]条路。本文利用Lovász的路-圈构造方法证明当图的偶度点导出子图同构于K_(5),K_(7)或K_(9)时猜想成立。 展开更多
关键词 分解 Gallai猜想
在线阅读 下载PDF
建整数模余坐标求孪猜哥猜对数期望下界证明孪猜哥猜
19
作者 张国坤 《科学技术创新》 2025年第20期38-58,共21页
目的:探证孪生素数猜想和哥德巴赫猜想.方法:基于孙子定理,定义整数模余坐标,规定整数模余坐标的加减运算和拆分运算,建构了整数模余坐标体系.提出并证明了素数的坐标判定方法,得到偶数哥猜分解的一个充分条件.结论:求出了整数区间(p_(n... 目的:探证孪生素数猜想和哥德巴赫猜想.方法:基于孙子定理,定义整数模余坐标,规定整数模余坐标的加减运算和拆分运算,建构了整数模余坐标体系.提出并证明了素数的坐标判定方法,得到偶数哥猜分解的一个充分条件.结论:求出了整数区间(p_(n),p_(n+1)^(2))上孪生素数对数的数学期望下界,估计孪生素数对数的下界,证明了孪生素数猜想是正确的;求出偶数2a哥德巴赫猜想分解对数的数学期望下界,估计偶数哥德巴赫猜想分解对数的下界,证明了哥德巴赫猜想是正确的.整数模余坐标体系还将对密码学研究提供新路径. 展开更多
关键词 孙子定理 整数模余坐标 素数判定定理 数学期望 孪生素数猜想 哥德巴赫猜想
在线阅读 下载PDF
对六角密堆积另辟蹊径的证明
20
作者 邹宗丰 《湘潭大学学报(自然科学版)》 2025年第1期74-85,共12页
针对六角密堆积给出了一个新的证明方法.构造一个单纯形的球覆盖系统,得到球体填充密度的一个上界.在二维空间中,可以给出一个密度达到上界的填充,此时该上界就是上确界,最终得到平面圆堆积情形的相关结果.
关键词 六角密堆积 Kepler猜想 Voronoi多面体 单纯形
在线阅读 下载PDF
上一页 1 2 76 下一页 到第
使用帮助 返回顶部