An improved upper bound for global dimension of semigroup algebras
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- by William R. Nico PDF
- Proc. Amer. Math. Soc. 35 (1972), 34-36 Request permission
Abstract:
An upper bound for the global dimension of the semigroup algebra of a finite regular monoid in terms of an ideal series for the monoid is determined by the partially ordered set of $\mathcal {I}$-classes of the monoid. In particular, if the monoid is combinatorial, the global dimension of the algebra is bounded by the sum of the global dimension of the coefficient ring and twice the length of the longest chain of $\mathcal {I}$-classes in the monoid.References
- Michael A. Arbib (ed.), Algebraic theory of machines, languages, and semigroups, Academic Press, New York-London, 1968. With a major contribution by Kenneth Krohn and John L. Rhodes. MR 0232875
- A. H. Clifford and G. B. Preston, The algebraic theory of semigroups. Vol. I, Mathematical Surveys, No. 7, American Mathematical Society, Providence, R.I., 1961. MR 0132791
- William R. Nico, Homological dimension in semigroup algebras, J. Algebra 18 (1971), 404–413. MR 277626, DOI 10.1016/0021-8693(71)90070-6
Additional Information
- © Copyright 1972 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 35 (1972), 34-36
- MSC: Primary 20M25; Secondary 16A60
- DOI: https://doi.org/10.1090/S0002-9939-1972-0296182-8
- MathSciNet review: 0296182