On linear algebraic semigroups III

Using some results on linear algebraic groups, we show that every connected linear algebraic semigroup S contains a closed, connected diagonalizable subsemigroup T with zero such that E(T) intersects each regular J-class of S. It is also shown that the lattice (E(T),≤) is isomorphic to the lattice o...

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Main Author: Mohan S. Putcha
Format: Article
Language:English
Published: Wiley 1981-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171281000513
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author Mohan S. Putcha
author_facet Mohan S. Putcha
author_sort Mohan S. Putcha
collection DOAJ
description Using some results on linear algebraic groups, we show that every connected linear algebraic semigroup S contains a closed, connected diagonalizable subsemigroup T with zero such that E(T) intersects each regular J-class of S. It is also shown that the lattice (E(T),≤) is isomorphic to the lattice of faces of a rational polytope in some ℝn. Using these results, it is shown that if S is any connected semigroup with lattice of regular J-classes U(S), then all maximal chains in U(S) have the same length.
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institution Kabale University
issn 0161-1712
1687-0425
language English
publishDate 1981-01-01
publisher Wiley
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series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-f074c7b23e7d43daa8f63b37943ea08c2025-02-03T05:54:13ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251981-01-014466769010.1155/S0161171281000513On linear algebraic semigroups IIIMohan S. Putcha0School of Physical and Mathematical Sciences, Department of Mathematlcs, North Carolina State University, Raleigh 27650, North Carolina, USAUsing some results on linear algebraic groups, we show that every connected linear algebraic semigroup S contains a closed, connected diagonalizable subsemigroup T with zero such that E(T) intersects each regular J-class of S. It is also shown that the lattice (E(T),≤) is isomorphic to the lattice of faces of a rational polytope in some ℝn. Using these results, it is shown that if S is any connected semigroup with lattice of regular J-classes U(S), then all maximal chains in U(S) have the same length.http://dx.doi.org/10.1155/S0161171281000513linear algebraic semigroupidempotentpolytope.
spellingShingle Mohan S. Putcha
On linear algebraic semigroups III
International Journal of Mathematics and Mathematical Sciences
linear algebraic semigroup
idempotent
polytope.
title On linear algebraic semigroups III
title_full On linear algebraic semigroups III
title_fullStr On linear algebraic semigroups III
title_full_unstemmed On linear algebraic semigroups III
title_short On linear algebraic semigroups III
title_sort on linear algebraic semigroups iii
topic linear algebraic semigroup
idempotent
polytope.
url http://dx.doi.org/10.1155/S0161171281000513
work_keys_str_mv AT mohansputcha onlinearalgebraicsemigroupsiii