Results 181 to 190 of about 5,894 (213)

Endomorphism rings of bimodules

Periodica Mathematica Hungarica, 2014
For an integral domain \(R\), the endomorphism ring of a torsion-free \(R\)-module is torsion-free, as well. The authors investigate if this remains true for non-commutative rings, where ``torsion-free'' is replaced by ``non-singular''. Let \(R\) be a unital but not necessarily commutative ring. A right module \(M\) over \(R\) is right non-singular if \
Albrecht, Ulrich F., Göbel, Rüdiger
openaire   +2 more sources

Anti-endomorphisms and endomorphisms satisfying an Engel condition

Communications in Algebra, 2019
AbstractLet R be a semiprime ring with τ an anti-endomorphism or endomorphism. It is proved that if τ satisfies an Engel condition [[…[[xτ,xn1],xn2]…],xnk]=0 for all x∈R, where n1,n2,…,nk are k fixed positive integers, then τ is a commuting map (i.e. [xτ,x]=0 for all x∈R).
EROĞLU, MÜNEVVER PINAR, Lee, Tsiu-Kwen, Lin, Jheng-Huei   +2 more
openaire   +2 more sources

On Rings with Many Endomorphisms

Canadian Mathematical Bulletin, 1976
AbstractAll rings have an identity, all homomorphisms map identities to identities, all homomorphisms on algebras over fields are algebra homomorphisms. A ring R is a quotient-embeddable ring (a QE-ring) if for any proper ideal a of R there is an endomorphism of R whose kernel is the ideal a.
openaire   +2 more sources

Clean endomorphism rings

Archiv der Mathematik, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicholson, W. K., Varadarajan, K., Zhou, Y.   +2 more
openaire   +2 more sources

On Expanding Endomorphisms of the Circle

Journal of the London Mathematical Society, 1990
A problem posed by M. Shub and D. Sullivan on the classification of real Lebesgue measure-preserving endomorphisms of the circle is investigated. A new Jacobian invariant is introduced and complete measure-theoretic isomorphism invariants are given which are simultaneously measure-theoretic and topological in character.
openaire   +1 more source

Unitary and Normal endomorphisms

2007
Unitary endomorphisms of an inner product space are introduced and studied. In particular, unitary and orthogonal matrices are considered. Many examples are considered, among them Householder matrices and special orthogonal matrices. Unitarily-similar matrices are defined and Schur’s Theorem is proven. Normal endomorphisms of an inner product space are
openaire   +1 more source

Endomorphism Type of P(3m + 1,3)

Mathematics, 2023
Rui Gu, Hailong Hou
exaly  

Virtual endomorphisms of groups.

2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Finite Abelian Groups with the Strong Endomorphism Kernel Property

Acta Mathematica Sinica, English Series, 2020
Jie Fang
exaly  

sp-Groups and Their Endomorphism Rings

Journal of Mathematical Sciences, 2021
A V Tsarev, P A Krylov
exaly