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There Are Infinitely Many Mersnne Composite Numbers with Prime Exponents
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作者 Fengsui Liu 《Advances in Pure Mathematics》 2018年第7期687-698,共12页
By extending both arithmetical operations into finite sets of natural numbers, from the entire set of natural numbers successively deleting some residue classes modulo a prime, we invented a recursive sieve method or ... By extending both arithmetical operations into finite sets of natural numbers, from the entire set of natural numbers successively deleting some residue classes modulo a prime, we invented a recursive sieve method or algorithm on natural numbers and their sets. The algorithm mechanically yields a sequence of sets, which converges to the set of all primes p such that 2p + 1 divides the Mersenne number Mp. The cardinal sequence corresponding to the sequence of sets is strictly increasing. So that we have captured enough usable structures, without any estimation, the existing theories of those structures allow us to prove an exact result: there are infinitely many Mersenne composite numbers with prime exponents Mp. 展开更多
关键词 Mersenne Composite numbers Sophie German primeS Recursive algorithm Order Topology Limit of Sequence of sets
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Polysurfacic Tori or Kideas Inspired by the Möbius Strip Topology
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作者 Emmanuel Cadier Anaxhaoza 《Advances in Pure Mathematics》 2023年第9期543-551,共9页
Polysurfacic tori or kideas are three-dimensional objects formed by rotating a regular polygon around a central axis. These toric shapes are referred to as “polysurfacic” because their characteristics, such as the n... Polysurfacic tori or kideas are three-dimensional objects formed by rotating a regular polygon around a central axis. These toric shapes are referred to as “polysurfacic” because their characteristics, such as the number of sides or surfaces separated by edges, can vary in a non-trivial manner depending on the degree of twisting during the revolution. We use the term “Kideas” to specifically denote these polysurfacic tori, and we represent the number of sides (referred to as “facets”) of the original polygon followed by a point, while the number of facets from which the torus is twisted during its revolution is indicated. We then explore the use of concave regular polygons to generate Kideas. We finally give acceleration for the algorithm for calculating the set of prime numbers. 展开更多
关键词 Heavenly Things Topology Euclidian Geometry Möbius Strip Emmanuel’s Tori YiBoLong’s Tori Cadier’s Tori Möbius Tori polysurfacic Tori Kideas the Keys KideaCross KideaStar Churros algorithm for calculating the set of prime numbers p the Last Found Element of p
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四元素集上拓扑个数的计算
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作者 曹尚民 高云峰 谢圣献 《聊城大学学报(自然科学版)》 1996年第2期30-35,45,共7页
介绍了计算四元素集上拓扑个数的主要方法和用微型计算机计算的结果.运用四元素集的基本性质,分析了四元素集上拓扑的结构,给出了四元素集上拓扑个数的主要计算过程.
关键词 四元素集上拓扑的个数 C语言 位运算 单点(子)集个数S 双点(子)集个数p 三点(子)集个数T
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