178 citations
- University of TorontoCA40 papers
- York UniversityCA39 papers
- University of WaterlooCA13 papers
- Alexandru Ioan Cuza UniversityRO8 papers
- McMaster UniversityCA8 papers
- Université du Québec à MontréalCA7 papers
- Centre National de la Recherche ScientifiqueFR6 papers
- University of HelsinkiFI6 papers
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- Carleton UniversityCA5 papers
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6 papers · 2 filters
Primitive representations of finite semigroups I
Steve Seif, Johnny Ray Sena
Primitive representations of finite groups as well as primitive finite groups were classified in the O'Nan-Scott Theorem. In this paper we classify faithful finite primitive semigr…
Complexity problems associated with matrix rings, matrix semigroups and Rees matrix semigroups
Steve Seif, Zeljko Sokolovic, Csaba Szabo
Complexity problems associated with finite rings and finite semigroups, particularly semigroups of matrices over a field and the Rees matrix semigroups, are examined. Let M_nF be t…
The Pfaffian closure on an o-minimal structure
Patrick Speissegger
Every o-minimal expansion R-tilde of the real field has an o-minimal expansion P(R-tilde) in which the solutions to Pfaffian equations with definable C^1 coefficients are definable…
Z_8 is not dualizable
CS. Szabo
In this paper we show that Z_8 does not admit a natural duality. In fact, we show that 2Z_8 = {2, 4, 6, 8 | +,.} is not dualizable, and this will imply that the original ring is no…
A theorem on spherically complete valued abelian groups
Franz-Viktor Kuhlmann
We give a criterion for a group homomorphism on a valued abelian group to be surjective and to preserve spherical completeness. We apply this to give a criterion for the existence…
Rigid analytic flatificators
Hans Schoutens
Let K be an algebraically closed field endowed with a complete non-archimedean norm. Let f:Y -> X be a map of K-affinoid varieties. We prove that for each point x in X, either f is…