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Fundamentalnaya i Prikladnaya Matematika, 2009, Volume 15, Issue 7, Pages 217–227
(Mi fpm1279)
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A cohomological characteristic for the length and width of a partially ordered set
A. G. Sukhonos Institute of Applied Mathematics, Far-Eastern Branch of the Russian Academy of Sciences
Abstract:
Grothendieck topologies on a poset preset by one set and corresponding sheaf cohomologies are analyzed. The relation between the given cohomologies and the length of a poset is identified. For this purpose, Grothendieck topologies are defined on the set of the chains and antichains of the given poset; the corresponding theories of sheaf cohomologies are formed and with the help of those the poset is analyzed.
Citation:
A. G. Sukhonos, “A cohomological characteristic for the length and width of a partially ordered set”, Fundam. Prikl. Mat., 15:7 (2009), 217–227; J. Math. Sci., 169:5 (2010), 705–712
Linking options:
https://www.mathnet.ru/eng/fpm1279 https://www.mathnet.ru/eng/fpm/v15/i7/p217
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Abstract page: | 276 | Full-text PDF : | 122 | References: | 45 | First page: | 1 |
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