Determinants in Projective Modules
Determinants in Projective Modules
复制标题
射影模块中的行列式
DOI:
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发表时间:
1961
影响因子:
0.8
通讯作者:
O. Goldman
中科院分区:
文献类型:
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作者:
O. Goldman
The definition of the determinant of an endomorphism of a free module depends on the following fact: If F is a free R-module of rank n, then the homogeneous component ∧ n F, of degree n, of the exterior algebra ∧ F of F is a free R-module of rank one. If a is an endomorphism of F, then a extends to an endomorphism of ∧ F which in ∧ nF is therefore multiplication by an element of R. That factor is then defined to be the determinant of α. (A discussion of this theory may be found in [4].) This procedure cannot be applied in general to finitely generated projective modules since, for such modules, it may happen that no homogeneous component of the exterior algebra is free of rank one.