LOCAL TO GLOBAL EQUIVALENCE FOR HOMOMORPHISMS

Authors
DEMEYER F MIRANDA R SCHNEIDER K
Citation
F. Demeyer et al., LOCAL TO GLOBAL EQUIVALENCE FOR HOMOMORPHISMS, Communications in algebra, 24(13), 1996, pp. 4225-4237
Citations number
15
Categorie Soggetti
Mathematics, Pure",Mathematics
Journal title
Communications in algebra → ACNP
ISSN journal
00927872
Volume
24
Issue
13
Year of publication
1996
Pages
4225 - 4237
Database
ISI
SICI code
0092-7872(1996)24:13<4225:LTGEFH>2.0.ZU;2-Y
Abstract
This paper studies the connection between sheaf cohomology and local v s. global equivalence for homomorphisms of finitely presented modules over commutative rings. The connection between cohomology and the loca l/global problem is worked out, basic cohomology sequences are derived and connections with the known interpretation of local/global equival ence in terms of modules and some calculations are given.