Syzygies and Homological Conjectures
Syzygies and Homological Conjectures
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Syzygies 和同调猜想
DOI:
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发表时间:
1989
期刊:
影响因子:
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通讯作者:
S. Dutta
中科院分区:
文献类型:
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作者:
S. Dutta
Throughout this work (A, m, k) denotes a commutative Noetherian local ring of dimension d, m is the maximal ideal of A and k = A/m. The main purpose of this paper is to study the canonical element conjecture of M. Hochster from the point of view of syzygies. The conjecture can be stated as follows: Conjecture. For every resolution F:
$$ o {A^{{s_i}}} o {A^{{s_i} - 1}} o cdotcdotcdot o {A^{{s_0}}} o k o 0$$
of k and for every system of parameters x1,…, x d of A, if φ is any map from the Koszul complex K*(x; A) (x stands for x1,…, xd)to F which lifts the natural surjection ({A mathord{left/ {vphantom {A {left( {{x_1}, ldots ,{x_n}}
ight) o k,,then,{phi _n},:,{K_n}left( {underset{
aise0.3emhbox{$smash{scriptscriptstyle-}$}}{x} ;A}
ight)}}}
ight. kern-
ulldelimiterspace} {left( {{x_1}, ldots ,{x_n}}
ight) o k,,then,{phi _n},:,{K_n}left( {underset{
aise0.3emhbox{$smash{scriptscriptstyle-}$}}{x} ;A}
ight)}} o {A^{{s_n}}}) is non-zero.