prosperity
发表于 2025-3-25 05:10:25
Curves on Surfaces,l curves satisfied certain relations. However, he seemed not to notice that he actually had a group (surprisingly, in view of the subsequent appearance of his pioneering treatise on group theory, Jordan 1870), and failed to get the right relations.
FRAX-tool
发表于 2025-3-25 08:24:41
Marie Louise Uhr,Graham A. R. Johnstonor the service of analysis. In fact, of course, Riemann surfaces were quickly seen to be of interest in themselves, and were the source of two ideas of profound significance in later topology—. and ..
epicondylitis
发表于 2025-3-25 12:12:05
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栖息地
发表于 2025-3-25 15:52:36
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Offstage
发表于 2025-3-25 20:26:54
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ELUC
发表于 2025-3-26 02:36:58
0072-5285Konigsberg, Euler‘s polyhedron formula, and knots, the student is led to expect that these picturesque ideas will come to full flower in university topology courses. What a disappointment "undergraduate topology" proves to be! In most institutions it is either a service course for analysts, on abst
Incorporate
发表于 2025-3-26 04:27:27
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禁止
发表于 2025-3-26 11:26:59
Peter R. Dunkley,Patrick R. Carnegiethe computation of numerical invariants of a manifold by means of decomposition into “cells”; the computations involve only the numbers of cells and the incidence relations between them, and it is shown that certain numbers are independent of the particular cellular subdivision chosen.
有权
发表于 2025-3-26 14:15:52
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吞下
发表于 2025-3-26 17:00:49
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