Crystal (mathematics)
id:
crystal-mathematics-242-15195992
title:
Crystal (mathematics)
text:
In mathematics, crystals are Cartesian sections of certain fibered categories. They were introduced by Alexander Grothendieck (1966a), who named them crystals because in some sense they are "rigid" and "grow". In particular quasicoherent crystals over the crystalline site are analogous to quasicoherent modules over a scheme. An isocrystal is a crystal up to isogeny. They are p -adic analogues of Q l -adic étale sheaves, introduced by Grothendieck (1966a) and Berthelot & Ogus (1983). Convergent i
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wiki
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encyclopedia
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original url:
https://en.wikipedia.org/wiki/Crystal_(mathematics)
date created:
date modified:
2022-12-22T13:50:52Z
main entity:
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13
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