Results 41 to 50 of about 5,894 (213)

H-module endomorphism rings [PDF]

open access: yes, 1995
We discuss the endomorphism ring extension of a module over an H-comodule algebra. A necessary and sufficient condition for such an endomorphism ring extension to be Hopf Galois is obtained.
Fred Van Oystaeyen   +5 more
core   +1 more source

Endomorphisms of fibred groups [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1989
A collection = {Gα|α∈A} of proper subgroups Gα of a group G is a fibration of G ifIt is of geometric interest to associate two semigroups to a group G with fibration :
Maxson, Carlton J., Pilz, Günter F.
openaire   +1 more source

The endomorphism monoid of Pn¯ [PDF]

open access: yes, 2007
In this paper, the endomorphism monoid of Pn¯, the complement of a path Pn with n vertices, is explored explicitly. It is shown that End(Pn¯) is orthodox. Some enumerative problems concerning End(Pn¯) are solved.
Hou, Hailong   +5 more
core   +1 more source

ENDOMORPHISM CONGRUENCES

open access: yesDemonstratio Mathematica, 1995
The notion of endomorphism congruence considered in this paper has a close connection with the notion of result. To say most generally, results are fractions such that their numerators are elements of a certain linear space while their denominators are injective endomorphisms of that space.
openaire   +2 more sources

Principally Quasi-Injective Semimodules

open access: yesمجلة بغداد للعلوم, 2019
In this work, the notion of principally quasi- injective semimodule is introduced, discussing the conditions needed to get properties and characterizations similar or related to the case in modules.
Aljebory et al.
doaj   +1 more source

Idempotents in the endomorphism algebra of a finite lattice [PDF]

open access: yes
We give a direct construction of a specific central idempotent in the endomorphism algebra of a finite lattice T. This idempotent is associated with all possible sublattices of T which are totally ordered.
Thévenaz, Jacques, Bouc, Serge
core   +1 more source

Enumerating Problems Concerning Endomorphisms of Double Vertex Wheel Graphs

open access: yesJournal of Mathematics
We 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

Strong endomorphism kernel property for monounary algebras [PDF]

open access: yesMathematica Bohemica, 2018
All monounary algebras which have strong endomorphism kernel property are described.
Emília Halušková
doaj   +1 more source

Hilbert Transform Pairs of Wavelets

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The orthogonal projection of a real orthonormal wavelet basis onto the Hardy space—consisting of functions whose Fourier transform is supported only on the positive real axis—yields a Parseval frame of wavelets. Motivated by practical considerations, Kingsbury proposed the use of two real scaling functions from multiresolution analyses (MRAs ...
Moritz Proell
wiley   +1 more source

On the additive image of zeroth persistent homology

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract For a category X$X$ and a finite field F$F$, we study the additive image of the functor H0(−;F)∗:rep(X,Top)→rep(X,VectF)$\operatorname{H}_0(-;F)_* \colon \operatorname{rep}(X, \mathbf {Top}) \rightarrow \operatorname{rep}(X, \mathbf {Vect}_F)$, or equivalently, of the free functor rep(X,Set)→rep(X,VectF)$\operatorname{rep}(X, \mathbf {Set ...
Ulrich Bauer   +3 more
wiley   +1 more source

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