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On Poincaré's Remark and a Kind of Nonstandard Measure Defined on ~*(R^n) 被引量:3
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作者 徐利治 孙广润 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2001年第2期159-164,共6页
Here concerned is a certain kind of non-standard measure defined on the n-dimensional Euclidean space (Rn), which (with n = 1) can be used to show that any standard linear point-set or the usual ordered field R of rea... Here concerned is a certain kind of non-standard measure defined on the n-dimensional Euclidean space (Rn), which (with n = 1) can be used to show that any standard linear point-set or the usual ordered field R of real numbers is of measure zero. The proposition just mentioned is basically consistent with Poincare's famous remark which renders a deep insight into the paradoxical structural nature of Cantor's continuum consisting precisely of all distinct real numbers. 展开更多
关键词 Poincaré's remark Cantor's continuum ENLARGEMENT hyperfinite set hyperstandard measure.
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On Poincaré-Type Continuum and Certain of Its Basic Properties
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作者 HSU Leetsch Charles 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2008年第1期11-21,共11页
This is an expositive paper reflecting certain viewpoint of intuitionists for the structure of continuum. What we provide is a descriptive theory for Poincaré-type continuum whose first hyperstandard model (PC)... This is an expositive paper reflecting certain viewpoint of intuitionists for the structure of continuum. What we provide is a descriptive theory for Poincaré-type continuum whose first hyperstandard model (PC) was given previously^[3]. Here we construct a new hyperstandard model [PC] instead of (PC), and present three propositions related to the concept of semi-infinitesimal. Finally, an application of R (non-Cantorian continuum) in Calculus is expounded.Keywords Poincar6's intimate bond (IB); hyperstandard microinterval; semi-infinitesimal; non-punctiform element. 展开更多
关键词 Poincaré intimate bond (IB) hyperstandard microinterval semi-infinitesimal non-punctiform element.
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