Results 61 to 70 of about 6,087,542 (164)
Generalized $F$-semigroups [PDF]
, 2005 summary:A semigroup $S$ is called a generalized $F$-semigroup if there exists a group congruence on $S$ such that the identity class contains a greatest element with respect to the natural partial order $\le _{S}$ of $S$. Using the concept of an anticone,
Giraldes, E. +2 more
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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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In‐and‐Out: Algorithmic Diffusion for Sampling Convex Bodies
Random Structures &Algorithms, Volume 68, Issue 3, May 2026.ABSTRACT We present a new random walk for uniformly sampling high‐dimensional convex bodies. It achieves state‐of‐the‐art runtime complexity with stronger guarantees on the output than previously known, namely in Rényi divergence (which implies TV, 𝒲2, KL, χ2$$ {\chi}^2 $$).
Yunbum Kook +2 more
wiley +1 more source
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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Stability of Blaschke products under forward iteration
Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.Abstract Forward iteration of holomorphic self‐maps generalizes the iteration of a single function in a natural way. This framework arises in complex dynamics, for instance, in the study of wandering domains and in seeking suitable extensions of the Denjoy–Wolff theorem. Here, we consider forward iteration of Blaschke products.
Daniela Kraus +2 more
wiley +1 more source
Littlewood, Paley and almost‐orthogonality: a theory well ahead of its time
Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.Abstract The classic paper by Littlewood and Paley [J. Lond. Math. Soc. (1), 6 (1931), 230–233] marked the birth of Littlewood–Paley theory. We discuss this paper and its impact from a historical perspective, include an outline of the results in the paper and their subsequent significance in relation to developments over the last century, and set them ...
Anthony Carbery
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
On the group generated by a free semigroup [PDF]
Proceedings of the American Mathematical Society, 1964 Appel, K., Djorup, F.
openaire +2 more sources