期刊文献+
共找到2,747篇文章
< 1 2 138 >
每页显示 20 50 100
Isomorphism Continuum Stored Energy Functional for Finite Thermoelastic Deformation
1
作者 Fuzhang Zhao 《Advances in Pure Mathematics》 2023年第2期133-151,共19页
Continuum mechanics for isotropic finite thermoelastic deformations have been reviewed. Thermal effects on mechanical responses of rubbers have been captured by the isomorphism continuum stored energy (CSE) functional... Continuum mechanics for isotropic finite thermoelastic deformations have been reviewed. Thermal effects on mechanical responses of rubbers have been captured by the isomorphism continuum stored energy (CSE) functional with the multiplicative decomposition of deformation gradient while preserving the structure of symmetry for finite structural deformation. The CSE finite thermoelastic model fits and predicts experimental data of SR and NR-C60 rubbers at different external temperatures. For internal temperature effects of both NR and NR-SIC rubbers, the CSE finite thermoelastic model of stored energy and entropy, along with the newly developed CTE and CI models, fits both nominal stress-stretch and temperature change-stretch experimental data in uniaxial extension tests. 展开更多
关键词 ENTROPY Finite Thermoelasticity isomorphism Constitutive Model Strain-Induced Crystallization THERMODYNAMICS
下载PDF
ISOMORPHISMS AND DERIVATIONS IN C*-ALGEBRAS 被引量:3
2
作者 Lee Jung-Rye Shin Dong-Yun 《Acta Mathematica Scientia》 SCIE CSCD 2011年第1期309-320,共12页
In this article, we prove the Hyers-Ulam-Rassias stability of the following Cauchy-Jensen functional inequality:‖f (x) + f (y) + 2f (z) + 2f (w)‖ ≤‖ 2f x + y2 + z + w ‖(0.1)This is applied to inv... In this article, we prove the Hyers-Ulam-Rassias stability of the following Cauchy-Jensen functional inequality:‖f (x) + f (y) + 2f (z) + 2f (w)‖ ≤‖ 2f x + y2 + z + w ‖(0.1)This is applied to investigate isomorphisms between C*-algebras, Lie C*-algebras and JC*-algebras, and derivations on C*-algebras, Lie C*-algebras and JC*-algebras, associated with the Cauchy-Jensen functional equation 2f (x + y/2 + z + w) = f(x) + f(y) + 2f(z) + 2f(w). 展开更多
关键词 Jordan-von Neumann type Cauchy-Jensen functional equation C*-algebra isomorphism Lie C*-algebra isomorphism JC*-algebra isomorphism Hyers-Ulam-Rassias stability Cauchy-Jensen functional inequality derivation
下载PDF
Simulated annealing algorithm for detecting graph isomorphism 被引量:4
3
作者 Geng Xiutang Zhang Kai 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第5期1047-1052,共6页
Evolutionary computation techniques have mostly been used to solve various optimization problems, and it is well known that graph isomorphism problem (GIP) is a nondeterministic polynomial problem. A simulated annea... Evolutionary computation techniques have mostly been used to solve various optimization problems, and it is well known that graph isomorphism problem (GIP) is a nondeterministic polynomial problem. A simulated annealing (SA) algorithm for detecting graph isomorphism is proposed, and the proposed SA algorithm is well suited to deal with random graphs with large size. To verify the validity of the proposed SA algorithm, simulations are performed on three pairs of small graphs and four pairs of large random graphs with edge densities 0.5, 0.1, and 0.01, respectively. The simulation results show that the proposed SA algorithm can detect graph isomorphism with a high probability. 展开更多
关键词 graph isomorphism problem simulated annealing algorithm nondeterministic polynomial problem local search.
下载PDF
SMALL INTO ISOMORPHISM FROM(c_0)INTO C(Ω)TYPE 被引量:1
4
作者 定光桂 《Acta Mathematica Scientia》 SCIE CSCD 2008年第2期307-314,共8页
If T is an isomorphism of (c0) into C(Ω) (where Ω is a sequentially compact and paracompact space, or a compact metric space in particular), which satisfies the condition ||T||·||T^-1|| ≤ 1 +ε ... If T is an isomorphism of (c0) into C(Ω) (where Ω is a sequentially compact and paracompact space, or a compact metric space in particular), which satisfies the condition ||T||·||T^-1|| ≤ 1 +ε for some ε ∈ (0,1/5), then T/||T|| is close to an isometry with an error less than 9ε. The proof of this article is simple without using the dual space or adjoint operator. 展开更多
关键词 Small into isomorphism ISOMETRY almost isometry
下载PDF
The Homomorphism and Isomorphism on Hypergroup 被引量:4
5
作者 钟育彬 《Chinese Quarterly Journal of Mathematics》 CSCD 1997年第3期7-14, ,共8页
Basing on the papers from [1] to [4], this paper gives some further research,mainly solves the following problems:(1) It proved that several theorems of subgroup which have been raised to the hypergroup are still true... Basing on the papers from [1] to [4], this paper gives some further research,mainly solves the following problems:(1) It proved that several theorems of subgroup which have been raised to the hypergroup are still true.(2) It proved that the isomorphous relationship of the bottomgroups which guid to the hypergroup can still keep such relationship.(3) It proved that the basic isomorphous Theorem and the homogenous Theorem of the bottomgroup which raise to the hypergroup are still true.(4) It point out that when the isomorphous bottomgroups have been raised to the hypergroup,the conditions which form the isomorphism should be lessened. 展开更多
关键词 HYPERGROUP HOMOMORPHISM isomorphism regular hypergroup uniform hypergroup
下载PDF
ADJACENT MARTIX METHOD OF IDENTIFYING ISOMORPHISM TO PLANAR KINEMATIC CHAIN WITH MULTIPLE JOINTS AND HIGHER PAIRS 被引量:2
6
作者 SONG Li HUANG Yong CHENG Ling 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2006年第4期605-609,共5页
The adjacent matrix method for identifying isomorphism to planar kinematic chain with multiple joints and higher pairs is presented. The topological invariants of the planar kinematic chain can be calculated and compa... The adjacent matrix method for identifying isomorphism to planar kinematic chain with multiple joints and higher pairs is presented. The topological invariants of the planar kinematic chain can be calculated and compared by adjacent matrix. The quantity of calculation can be reduced effectively using the several divisions of bars and the reconfiguration of the adjacent matrix. As two structural characteristics of adjacent matrix, the number of division and division code are presented. It can be identified that two kinematic chains are isomorphic or not by comparing the structural characteristics of their adjacent matrixes using a method called matching row-to-row. This method may be applied to the planar linkage chain too. So, the methods of identifying isomorphism are unified in the planar kinematic chain that has or hasn't higher pairs with or without multiple joints. And it has some characters such as visual, simple and convenient for processing by computer, and so on. 展开更多
关键词 Planar kinematic chain Higher pair Multiple joint Adjacent matrix Identifying isomorphism
下载PDF
GPU acceleration of subgraph isomorphism search in large scale graph 被引量:1
7
作者 杨博 卢凯 +2 位作者 高颖慧 王小平 徐凯 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第6期2238-2249,共12页
A novel framework for parallel subgraph isomorphism on GPUs is proposed, named GPUSI, which consists of GPU region exploration and GPU subgraph matching. The GPUSI iteratively enumerates subgraph instances and solves ... A novel framework for parallel subgraph isomorphism on GPUs is proposed, named GPUSI, which consists of GPU region exploration and GPU subgraph matching. The GPUSI iteratively enumerates subgraph instances and solves the subgraph isomorphism in a divide-and-conquer fashion. The framework completely relies on the graph traversal, and avoids the explicit join operation. Moreover, in order to improve its performance, a task-queue based method and the virtual-CSR graph structure are used to balance the workload among warps, and warp-centric programming model is used to balance the workload among threads in a warp. The prototype of GPUSI is implemented, and comprehensive experiments of various graph isomorphism operations are carried on diverse large graphs. The experiments clearly demonstrate that GPUSI has good scalability and can achieve speed-up of 1.4–2.6 compared to the state-of-the-art solutions. 展开更多
关键词 parallel graph isomorphism GPU backtrack paradigm
下载PDF
ISOMORPHISMS OF CIRCULANT DIGRAPHS OF DEGREE 3
8
作者 HUANG QIONGXIANG DU ZHIHUA Department of Mathematics, Xinjiang University, Urumuqi 830046. Department of Mathematics, Xinjiang Nprmal University Urumuqi 830054 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 1996年第1期115-123,共9页
In this paper, we introduce a new approach to characterize the isomor-phisms of circulant digraphs. In terms of this method, we completely determine theisomorphic classes of circulant digraphs of degree 3. In particul... In this paper, we introduce a new approach to characterize the isomor-phisms of circulant digraphs. In terms of this method, we completely determine theisomorphic classes of circulant digraphs of degree 3. In particular, we characterizethose circulant digraphs of degree 3 which don't satisfy Adam's conjecture. 展开更多
关键词 circulant digraph isomorphism Adam's conjecture.
下载PDF
ON THE ISOMETRIC ISOMORPHISM OF PROBABILISTIC METRIC SPACES
9
作者 LIU Ming-xue(刘明学) 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2002年第5期614-617,共4页
There are two kinds of isometric isomorphism in probabilistic metric space theory. The first is that a PM space (E, F) is isometrically isomorphic to another PM space (E', F'), and the second is that a PM spac... There are two kinds of isometric isomorphism in probabilistic metric space theory. The first is that a PM space (E, F) is isometrically isomorphic to another PM space (E', F'), and the second is that a PM space (E, F) is isometrically isomorphic to a generating space of quasi-metric family (E', d(r), r is an element of (0, 1)). This paper establishes the connection between the two kinds of isometric isomorphism. 展开更多
关键词 probabilistic metric space generating space of quasi-metric family isometric isomorphism
下载PDF
Weak Isomorphism of Finite Group
10
作者 蒲伟 何军华 《Journal of Southwest Jiaotong University(English Edition)》 2007年第1期80-83,共4页
On the basis of the quasi-isomorphism of finite groups, a new mapping, weak isomorphism, from a finite group to another finite group is defined. Let G and H be two finite groups and G be weak-isomorphic to H. Then G≌... On the basis of the quasi-isomorphism of finite groups, a new mapping, weak isomorphism, from a finite group to another finite group is defined. Let G and H be two finite groups and G be weak-isomorphic to H. Then G≌H if G satisfies one of the following conditions. 1) G is a finite Abelian group. 2) The order of G is p^3. 3 ) The order of G is p^n+1 and G has a cyclic normal subgroup N = 〈a〉 of order p^n. 4) G is a nilpotent group and if p^││G│, then for any P ∈ Sylp (G), P has a cyclic maximal subgroup, where p is a prime; 5) G is a maximal class group of order p4(p〉3). 展开更多
关键词 Weak isomorphism Finite Abelian group Nilpotent gtoup p-Cvtoup
下载PDF
Characterizations of Isomorphisms by Multiplicative Maps on Operator Algebras
11
作者 安桂梅 侯晋川 《Northeastern Mathematical Journal》 CSCD 2001年第4期438-448,共11页
In this paper, we discuss some multiplicative preservers and give some characterizations of isomorphisms or conjugate isomorphisms on β(X), where β(X) denotes the algebra of all bounded linear operators on a Banach ... In this paper, we discuss some multiplicative preservers and give some characterizations of isomorphisms or conjugate isomorphisms on β(X), where β(X) denotes the algebra of all bounded linear operators on a Banach space X. 展开更多
关键词 isomorphism multiplicative map SPECTRUM numerical range
下载PDF
The Isomorphism Theorem of Regular Bisimple ω2-semigroups
12
作者 Shang Yu Wang Li-min Du Xian-kun 《Communications in Mathematical Research》 CSCD 2014年第2期131-138,共8页
In this paper we study the isomorphisms of two regular bisimple ω2- semigroups and obtain a criterion for two such semigroups to be isomorphic.
关键词 regular ω2-semigroup generalized Bruck-Reilly extension isomorphism 2010 MR subject classification: 20M10
下载PDF
Similar Vertices and Isomorphism Detection for Planar Kinematic Chains Based on Ameliorated Multi-Order Adjacent Vertex Assignment Sequence
13
作者 Liang Sun Zhizheng Ye +2 位作者 Fuwei Lu Rongjiang Cui Chuanyu Wu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2021年第1期251-265,共15页
Isomorphism detection is fundamental to the synthesis and innovative design of kinematic chains(KCs).The detection can be performed accurately by using the similarity of KCs.However,there are very few works on isomorp... Isomorphism detection is fundamental to the synthesis and innovative design of kinematic chains(KCs).The detection can be performed accurately by using the similarity of KCs.However,there are very few works on isomorphism detection based on the properties of similar vertices.In this paper,an ameliorated multi-order adjacent vertex assignment sequence(AMAVS)method is proposed to seek out similar vertices and identify the isomorphism of the planar KCs.First,the specific definition of AMAVS is described.Through the calculation of the AMAVS,the adjacent vertex value sequence reflecting the uniqueness of the topology features is established.Based on the value sequence,all possible similar vertices,corresponding relations,and isomorphism discrimination can be realized.By checking the topological graph of KCs with a different number of links,the effectiveness and efficiency of the proposed method are verified.Finally,the method is employed to implement the similar vertices and isomorphism detection of all the 9-link 2-D0F(degree of freedom)planar KCs. 展开更多
关键词 Similar vertices isomorphism detection Kinematic chains Topology features AMAVS
下载PDF
ISOMORPHISMS OF VARIABLE HARDY SPACES ASSOCIATED WITH SCHRÖDINGER OPERATORS
14
作者 Junqiang ZHANG Dachun YANG 《Acta Mathematica Scientia》 SCIE CSCD 2021年第1期39-66,共28页
Let L:=-△+V be the Schrodinger operator on R^(n)with n≥3,where V is a non-negative potential satisfying△^(-1)(V)∈L^(∞)(R^(n)).Let w be an L-harmonic function,determined by V,satisfying that there exists a positiv... Let L:=-△+V be the Schrodinger operator on R^(n)with n≥3,where V is a non-negative potential satisfying△^(-1)(V)∈L^(∞)(R^(n)).Let w be an L-harmonic function,determined by V,satisfying that there exists a positive constantδsuch that,for any x∈Rn,0<δ≤w(x)≤1.Assume that p(·):R^(n)→(0,1]is a variable exponent satisfying the globally log-Hölder continuous condition.In this article,the authors show that the mappings HL^(p)(·))(R^(n))■f■wf∈H^(p)(·)(R^(n))and HL^(p(·))(R^(n))■f■(-△)^(1/2)L^(-1/2)(f)∈H^(p(·))(R^(n))are isomorphisms between the variable Hardy spaces HL^(p(·))(R^(n)),associated with L,and the variable Hardy spaces H^(p(·))(R^(n)). 展开更多
关键词 variable Hardy space Schrödinger operator L-harmonic function isomorphism ATOM
下载PDF
Subgraph Isomorphism Based Intrinsic Function Reduction in Decompilation
15
作者 Yanzhao Liu Yinliang Zhao +1 位作者 Lei Zhang Kai Liu 《Journal of Software Engineering and Applications》 2016年第3期80-90,共11页
Program comprehension is one of the most important applications in decompilation. The more abstract the decompilation result the better it is understood. Intrinsic function is introduced by a compiler to reduce the ov... Program comprehension is one of the most important applications in decompilation. The more abstract the decompilation result the better it is understood. Intrinsic function is introduced by a compiler to reduce the overhead of a function call and is inlined in the code where it is called. When analyzing the decompiled code with lots of inlined intrinsic functions, reverse engineers may be confused by these detailed and repeated operations and lose the goal. In this paper, we propose a method based graph isomorphism to detect intrinsic function on the CFG (Control Flow Graph) of the target function first. Then we identify the boundary of the intrinsic function, determine the parameter and return value and reduce the intrinsic function to a single function call in the disassembled program. Experimental results show that our method is more efficient at reducing intrinsic functions than the state-of-art decompilers such as Hex-Rays, REC and RD (Retargetable Decompiler). 展开更多
关键词 Program Comprehension DECOMPILATION Graph isomorphism Intrinsic Function
下载PDF
Rescuing High-Tech Sectors from Imminent Disaster, Using Isomorphic Lessons & Organisational Learning Strategies as Prerequisite Tools to Manage Safety
16
作者 Agha Ibiam Wayne Harrop 《Engineering(科研)》 2023年第10期612-631,共20页
Within high-risk industries, efficient management of safety is an important element of organisational efforts to reduce accidents. Most organisations such as nuclear, aviation and oil and gas sectors have a safety man... Within high-risk industries, efficient management of safety is an important element of organisational efforts to reduce accidents. Most organisations such as nuclear, aviation and oil and gas sectors have a safety management system (SMS) which provides sequence of organisational procedure to identify hazards, mitigation of risk, measure performance, investigate incidents and maintain an on-going continuous improvement. However, experts believe that when such complex organisations complement safety management system with isomorphic lessons and organisational learning strategies to manage safety, there will be a high propensity to aggressively reduce risk and save cost. Undoubtedly, learning from accidents/incidents is one of many ways to manage safely in any given organisation. As a result, this paper is intended to ascertain if organisations use isomorphic lessons and organisational learning as strong feature of organisation’s practice capable of promoting stronger safety culture;and if lessons learned from other high-risk sectors can help inform risk-based decisions in organisations. Risk experts and by extension the nuclear sector, could have learned from past accident such as the Three Mile Island of 1979 and employ lessons learned to forestall future occurrences. Primary data was gathered via online, and research population are health and safety professionals from aviation, nuclear, and the oil and gas sectors. The sample size recruited are aviation (n = 59, 25%);nuclear (n = 124, 54%);and oil and gas (n = 49, 21%). Statistical Package for the Social Sciences (SPSS) software was used to analyse 232 responses used for this paper. 展开更多
关键词 isomorphIC ORGANISATION Learning Risk Hazard Nuclear
下载PDF
ISOMETRIC ISOMORPHISMS OF TRIANGULAR BANACH ALGEBRAS
17
作者 LuoJianwen LuFangyan 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2000年第4期403-408,共6页
Let A and B be Banach algebras.Let M be a Banach A,B module with bounded 1.Then T=AM 0B is a Banach algebra with the usual operations and the norm AM 0B=‖A‖+‖M‖+‖B‖.Such an algebra is called a triangular Bana... Let A and B be Banach algebras.Let M be a Banach A,B module with bounded 1.Then T=AM 0B is a Banach algebra with the usual operations and the norm AM 0B=‖A‖+‖M‖+‖B‖.Such an algebra is called a triangular Banach algebra.In this paper the isometric isomorphisms of triangular Banach algebras are characterized. 展开更多
关键词 Triangualr Banach algebras isometric isomorphisms.
全文增补中
基于三全育人的高职劳动教育与专业教育同构共生探析 被引量:1
18
作者 黎娟 蒋洁 《成都航空职业技术学院学报》 2024年第1期23-25,92,共4页
高职劳动教育与专业教育以三全育人为指引,二者的同构共生符合历史社会发展趋势。三全育人视阈下,高职院校应该从劳动教育机制与评价标准的建构、劳动教育目标和内容的融通、劳动教育实践的拓展和劳动教育形式的创新等方面促进劳动教育... 高职劳动教育与专业教育以三全育人为指引,二者的同构共生符合历史社会发展趋势。三全育人视阈下,高职院校应该从劳动教育机制与评价标准的建构、劳动教育目标和内容的融通、劳动教育实践的拓展和劳动教育形式的创新等方面促进劳动教育与专业教育的同构共生。 展开更多
关键词 三全育人 劳动教育 专业教育 同构共生
下载PDF
STUDY ON ISOMORPHISM OF PLANAR KINEMATIC CHAINS
19
作者 Li Wenhui Zou Huijun Cao Zhikui( Shanghai Jiaotong University) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1996年第3期193-198,共1页
The isomorphism of planar kinematic chains is studied. The original methods for de- tecting isomorphism is discussed. A new matrix, the link -link path matrix, is presented to show the structures of planar kinematic c... The isomorphism of planar kinematic chains is studied. The original methods for de- tecting isomorphism is discussed. A new matrix, the link -link path matrix, is presented to show the structures of planar kinematic chains. It is simple and reliable to detect isomorphism of planar kinematic chains by using the link-link path matrix. 展开更多
关键词 Planar kinematic chains isomorphism Link -link path matrix
全文增补中
人工智能与教育变革 被引量:2
20
作者 王学男 李永智 《电化教育研究》 CSSCI 北大核心 2024年第8期13-21,共9页
生成式人工智能快速迭代引发关注,教育领域似乎是受其影响最为直接和深远的领域之一。对于人工智能的影响,当前存在高估短期效果、低估长远效果的倾向。研究从唯物史观视角,分阶段概括梳理人工智能发展情况,客观分析其发展水平和技术限... 生成式人工智能快速迭代引发关注,教育领域似乎是受其影响最为直接和深远的领域之一。对于人工智能的影响,当前存在高估短期效果、低估长远效果的倾向。研究从唯物史观视角,分阶段概括梳理人工智能发展情况,客观分析其发展水平和技术限度,判断其与人类智慧仍有本质差别,特别是在高阶认知和社会情感方面。研究基于理性质疑的态度,发现教育与人工智能技术原理在结构对比、逻辑对比、符号编码、内容分析、交互机理和培养模式六个主要方面存在同构性逻辑,并对二者之间的内在关联和作用机制提供了清晰的认知和判断。研究建议从学生高阶思维培养、新型师生关系构建和教学模式创新三个直接且关键的问题切入,以人工智能撬动教育变革。 展开更多
关键词 生成式人工智能 同构性逻辑 教育变革 技术限度 教育应对
下载PDF
上一页 1 2 138 下一页 到第
使用帮助 返回顶部