Results 91 to 100 of about 4,589 (218)
Coverings of solenoids and automorphisms of semigroup C*-algebras
Учёные записки Казанского университета: Серия Физико-математические науки, 2018 The paper deals with finite-sheeted covering mappings onto the C*-adic solenoids and limit endomorphisms of semigroup C*-algebras. The aim of our exposition is two-fold: firstly, to present the results concerning the above-mentioned mappings and ...
R.N. Gumerov
doaj
Enumerating Problems Concerning Endomorphisms of Double Vertex Wheel Graphs
Journal of MathematicsWe can define six classes of endomorphisms on a graph, and they always form a chain based on set inclusion. The concepts of endomorphism type and endomorphism spectrum were introduced by Böttcher and Knauer in 1992.
Yu Li, Hailong Hou, Kaidi Xu
doaj +1 more source
Torsion pairs via the Ziegler spectrum
Proceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.Abstract We establish a bijection between torsion pairs in the category of finite‐dimensional modules over a finite‐dimensional algebra A$A$ and pairs (Z,I)$(\mathcal {Z},\mathcal {I})$ formed by a closed rigid set Z$\mathcal {Z}$ in the Ziegler spectrum of A$A$ and a set I$\mathcal {I}$ of indecomposable injective A$A$‐modules. This is as an extension
Lidia Angeleri Hügel +2 more
wiley +1 more source
A new approach to (dual) Rickart modules via isomorphisms
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaIn the past few decades, researchers have found that studying modules using endomorphisms is a powerful and useful tool. This has led to valuable works in this field.
Asgari S. +2 more
doaj +1 more source
Cogenerator endomorphism rings [PDF]
Proceedings of the American Mathematical Society, 1971 If R R is a ring and P P is a finitely generated projective right R R -module, what properties of R R does the R R -endomorphism ring of P P inherit? Rosenberg and Zelinsky have shown that if R R is quasi-Frobenius, and P
openaire +1 more source
Syntomic cohomology and real topological cyclic homology
Proceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.Abstract We define motivic filtrations on real topological Hochschild homology and its companions. In particular, we prove that real topological cyclic homology admits a natural complete filtration whose graded pieces are equivariant suspensions of syntomic cohomology.
Doosung Park
wiley +1 more source
On semigroups of graph endomorphisms
Discrete Mathematics, 1980 AbstractIt is shown that given a finite or infinite graph H and a subsemigroup B of its endomorphism semigroup End H, there exists a graph G such that 1.(i)|H is an induced subgraph of G,2.(ii)|H is stable by every f ϵ End G,3.(iii)|every f ϵ End G is uniquely determined by its restriction to H,4.(iv)|the restriction of End G to H is precisely B.
Stéphane Foldes, Gert Sabidussi
openaire +2 more sources
On the Multidimensional Limit Theorem for Endomorphisms of the Euclidean Space [PDF]
Учёные записки Казанского университета: Серия Физико-математические науки, 2015 Nearly optimal refinement of the earlier estimates of the convergence rate in the multidimensional central limit theorem for sums of functions of the trajectories of endomorphisms of the s-dimensional Euclidean space was performed.
F.G. Gabbasov +2 more
doaj
Nilpotency in endomorphism rings [PDF]
Proceedings of the American Mathematical Society, 1974 Nil subrings of the endomorphism ring of a module with finite Krull dimension sequence are nilpotent. This includes the case of a module with finite Krull dimension as well as noetherian modules. The method used is to embed the endomorphism ring, modulo a nilpotent ideal, in the endomorphism ring of an artinian object of a Grothendieck category.
openaire +1 more source
Crossed Product of a C*-Algebra by a Semigroup of Interactions
Demonstratio Mathematica, 2014 The paper presents a construction of the crossed product of a C*-algebra by a commutative semigroup of bounded positive linear maps generated by partial isometries.
Kwaśniewski B. K.
doaj +1 more source