Results 61 to 70 of about 6,505,496 (165)
Advances in Mathematics, 2012 In this paper we bring together results about the density of subsemigroups of abelian Lie groups, the minimal number of topological generators of abelian Lie groups and a result about actions of algebraic groups. We find the minimal number of generators of a finitely generated abelian semigroup or group of matrices with a dense or a somewhere dense ...
Abels, Herbert, Manoussos, Antonios
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On the theories classified by an étendue
Bulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.Abstract We give a model‐theoretic characterisation of the geometric theories classified by étendues—the ‘locally localic’ topoi. They are the theories where each model is determined, syntactically and semantically, by any witness of a fixed collection of formulae.
Joshua L. Wrigley
wiley +1 more source
Maximum number of zeroes of polynomials on weighted projective spaces over a finite field
Bulletin of the London Mathematical Society, Volume 58, Issue 6, June 2026.Abstract We compute the maximum number of rational points at which a homogeneous polynomial can vanish on a weighted projective space over a finite field, provided that the first weight is equal to 1. This solves a conjecture by Aubry, Castryck, Ghorpade, Lachaud, O'Sullivan and Ram, which stated that a Serre‐like bound holds with equality for weighted
Jade Nardi, Rodrigo San‐José
wiley +1 more source
The Perron Problem for C-Semigroups [PDF]
, 2004 <p>Characterizations of Perron-type for the exponential stability of exponentially bounded C-semigroups are given. Also, some applications for the asymptotic behavior of the integrated semigroups are obtained.</p>
Prada, Petre +2 more
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Positive semigroups generated by elliptic operators on Lie groups
, 2016 The authors generalize first of all a characterization of second order strongly elliptic differential operators given by \textit{S. Miyajima} and \textit{N. Okazawa} [Pac. J. Math. 125, 161-175 (1986; Zbl 0615.47031)]. Secondly they derive reuslts on the asymptotic behaviour of the semigroup generated by such an operator.
Arendt, W, Batty, C, Robinson, D
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K-Theory for Semigroup C*-Algebras and Partial Crossed Products. [PDF]
Commun Math Phys, 2022 Li X.
europepmc +1 more source
Fundamental solutions for semidiscrete evolution equations via Banach algebras. [PDF]
Adv Differ Equ, 2021 González-Camus J, Lizama C, Miana PJ.
europepmc +1 more source
On the group generated by a free semigroup [PDF]
Proceedings of the American Mathematical Society, 1964 Appel, K., Djorup, F.
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Co-actions, Isometries, and isomorphism classes of Hilbert modules. [PDF]
Adv Oper Theory, 2021 Kučerovský DZ.
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Semigroups of order-decreasing transformations [PDF]
, 2012 Let X be a totally ordered set and consider the semigroups of orderdecreasing (increasing) full (partial, partial one-to-one) transformations of X. In this Thesis the study of order-increasing full (partial, partial one-to-one) transformations has been
Umar, Abdullahi
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