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: http://www.sai.msu.su/sal/A/0/SHEAFHOM.html
Дата изменения: Unknown Дата индексирования: Sat Dec 22 06:26:29 2007 Кодировка: |
Sheafhom
Sheafhom is a set of programs for homological algebra and algebraic topology . I t allows you to work with finite-dimensional vector spaces over Q and their morphisms (i .e. linear maps). The system supports tensor products, direct sums, and wedge products, as wel l as partially-ordered sets. A data structure called a sheaf represents sheaves (like the inter section homology sheaves) on certain topological spaces. This includes the spaces given by regular cell complexes and simplicial complexes.
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Current Version: May 11, 1996
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