Vsd168
发表于 2025-3-27 00:16:16
Economic Theories of Information,In this paper, we introduce a package to compute homology and cohomology spaces of Lie superalgebras. We describe most of its features and the implementation in REDUCE.
键琴
发表于 2025-3-27 04:30:49
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photopsia
发表于 2025-3-27 08:11:14
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赦免
发表于 2025-3-27 11:01:03
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勋章
发表于 2025-3-27 15:51:21
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我不明白
发表于 2025-3-27 18:01:04
Horst-Manfred Schellhaass,Ulrich StumpfQuantities which are conserved in nondissipative media decay in the presence of dissipation. The velocity of such a decay (or the ‘balance law’) may be found explicitly using the generating function of the conservation law. The general approach is illustrated with a system of MHD equations for incompressible magnetofluids.
refine
发表于 2025-3-27 22:56:57
Computation by Computer of Lie Superalgebra Homology and Cohomology,In this paper, we introduce a package to compute homology and cohomology spaces of Lie superalgebras. We describe most of its features and the implementation in REDUCE.
颂扬本人
发表于 2025-3-28 02:50:21
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美色花钱
发表于 2025-3-28 07:10:37
Exact Gerstenhaber Algebras and Lie Bialgebroids,We show that to any Poisson manifold and, more generally, to any triangular Lie bialge-broid in the sense of Mackenzie and Xu, there correspond two differential Gerstenhaber algebras in duality, one of which is canonically equipped with an operator generating the graded Lie algebra bracket, i.e. with the structure of a Batalin-Vilkovisky algebra.
分期付款
发表于 2025-3-28 12:26:30
Differential Invariants,This paper summarizes recent results on the number and characterization of differential invariants of transformation groups. Generalizations of theorems due to Ovsiannikov and to M. Green are presented, as well as a new approach to finding bounds on the number of independent differential invariants.