不如乐死去
发表于 2025-3-23 10:11:53
African Spirituality and Ethics saw how certain constructions (for example, the formation of Hom.(.) for given Λ-modules .) produced new structures out of given structures. Over and above this we introduced certain “universal” constructions (direct sum, direct product) and suggested that they constituted special cases of a genera
interrogate
发表于 2025-3-23 13:54:50
https://doi.org/10.1057/9781137523341ension problem then appears quite naturally: given modules . (over a fixed ring Λ) what modules . may be constructed with submodule . and associated quotient module .? The set of equivalence classes of such modules ., written .(.) may then be given an abelian group structure in a way first described
北京人起源
发表于 2025-3-23 19:47:24
Joseph Olayinka Fashagba,Edward R. McMahony of ., and introducing the special cases of Ext.(.), Tor.(.). Subsequent chapters take up more sophisticated properties of derived functors and special features of the theory in various contexts* (cohomology of groups, cohomology of Lie algebras).
anatomical
发表于 2025-3-24 02:01:11
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下边深陷
发表于 2025-3-24 03:44:51
Joseph Olayinka Fashagba,Edward R. McMahont group . over the integers. This will lead us to a definition of cohomology groups .(.) and homology groups .(.) . ≧ 0, where . is a left and . a right .-module (we speak of “.-modules” instead of “ℤ.-modules”). In developing the theory we shall attempt to deduce as much as possible from general pr
倔强一点
发表于 2025-3-24 08:28:07
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Confidential
发表于 2025-3-24 14:12:19
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FEAS
发表于 2025-3-24 16:46:42
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acolyte
发表于 2025-3-24 21:26:01
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GEON
发表于 2025-3-24 23:17:56
Labour: Obstacles and OpportunitiesThis book arose out of a course of lectures given at the Swiss Federal Institute of Technology (ETH), Zürich, in 1966–67. The course was first set down as a set of lecture notes, and, in 1968, Professor Eckmann persuaded the authors to build a graduate text out of the notes, taking account, where appropriate, of recent developments in the subject.