Global sections of structure sheaves of Keigher rings

Trushin, Dmitry

doi:10.1090/S0002-9939-2011-10932-8

Global sections of structure sheaves of Keigher rings
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Proc. Amer. Math. Soc. 140 (2012), 505-511 Request permission

Abstract:

Answering a question of J. Kovacic, we show that for any Keigher ring, its differential spectrum coincides with the differential spectrum of the ring of global sections of the structure sheaf. In particular, we obtain the answer for Ritt algebras, that is, differential rings containing the rational numbers.

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