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Supported by the Deutsche Forschungsgemeinschaft under a Heisenberg grant 相似文献
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A. A. Kadeishvili 《JETP Letters》1996,63(11):917-923
Vertex operators for the deformed Virasoro algebra are defined, their bosonic representation is constructed, and a difference
equation for the simplest vertex operators is described.
Pis’ma Zh. éksp. Teor. Fiz. 63, No. 11, 876–881 (10 June 1996)
Published in English in the original Russian journal. Edited by Steve Torstveit. 相似文献
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For a 1-connected space X Adams's bar construction B(C*(X)) describes H*(X) only as a graded module and gives no information about the multiplicative structure. Thus it is not possible to iterate the bar construction in order to determine the cohomology of iterated loop spaces
i
X. In this paper for an n-connected pointed space X a sequence of A()-algebra structures
, is constructed, such that for each
there exists an isomorphism of graded algebras
相似文献
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T. Kadeishvili 《Journal of Mathematical Sciences》2013,195(4):455-459
In this paper, we indicate several aspects of the notion of homotopy Gerstenhaber algebras and give some important examples and applications. 相似文献
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T. Kadeishvili 《Journal of Mathematical Sciences》2012,186(5):753-755
Cochain operations that determine the structure of Hirsch algebras are characterized. 相似文献
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A free resolution (R, d + h) → (M, d) for a DG-module (M, d) over a DG-algebra (A, d) is constructed in the sense of a perturbation of the differential in a free bigraded resolution (R, d) → M of the underlying graded module M over an underlying graded algebra A.
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Translated from Sovremennaya Matematika i Ee Prilozheniya (Contemporary Mathematics and Its Applications), Vol. 43, Topology
and Its Applications, 2006. 相似文献
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