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简单性思想与理论简单性原则 被引量:7
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作者 李宏伟 李天瑞 《自然辩证法研究》 CSSCI 北大核心 1994年第12期63-67,共5页
简单性思想由来已久,但对其深层次问题并没有满意解决。本文就自然界简单性的一面,与人对事物判断的主体性特征,用来构筑理论简单性原则具有合理性。从而,提出科学理论简单性的主客观相结合的判断标准,以期将简单性研究引向深入。
关键词 自然辩证法 简单思想 理论简单性
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试论波普尔的科学简单性思想
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作者 贾朋俭 郑卫红 《科学技术与辩证法》 CSSCI 北大核心 2002年第4期21-23,共3页
简单性是自然界的本质特征 ,作为对客观存在及其规律的正确反映及其理论也需具有简单性与之统一。而理论简单性是通过可证伪性表现出来的 ,用最简单的形式描述客观实在 ,以最简单的理论接近真理。
关键词 波普尔 可证伪 科学模式 简单理论
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Topological Properties of Complex Networks with Different Types of Nodes
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作者 张娟 吴文丰 《Journal of Donghua University(English Edition)》 EI CAS 2009年第4期384-386,共3页
Nodes play different roles or have different functions in many natural and social networks.In this paper,a simple model with different types of nodes and deterministic selective linking rule is proposed.The structural... Nodes play different roles or have different functions in many natural and social networks.In this paper,a simple model with different types of nodes and deterministic selective linking rule is proposed.The structural properties by theoretical predictions are investigated that the given model exhibits a power-law distribution. 展开更多
关键词 power-law distribution degree distribution clustering coefficient mean-field method
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SOME RESULTS ON INFINITE DIMENSIONAL NOVIKOV ALGEBRAS
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作者 ZHAO YUFENG MENG DAOJI Department of Mathematics, Nankai University, Tianjin 300071, China. Department of Mathematics, Nankai University, Tianjin 300071, China. 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2003年第3期309-314,共6页
This paper gives some sufficient conditions for determining the simplicity of infinite di-mensional Novikov algebras of characteristic 0, and also constructs a class of simple Novikovalgebras by extending the base fie... This paper gives some sufficient conditions for determining the simplicity of infinite di-mensional Novikov algebras of characteristic 0, and also constructs a class of simple Novikovalgebras by extending the base field. At last, the deformation theory of Novikov algebras isintroduced. 展开更多
关键词 Novikov algebra Novikov-Poisson Algebra Algebraic deformation
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