Results 131 to 140 of about 55,047 (231)

The endomorphisms of Grassmann graphs

open access: yesArs Mathematica Contemporanea, 2016
8 ...
Li-Ping Huang, Kaishun Wang, Benjian Lv
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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

Survey on comultiplication modules [PDF]

open access: yesSurveys in Mathematics and its Applications, 2019
The concept of comultiplication (as a dual notion of multiplication) modules was introduced and studied by H. Ansari-Toroghy and F. Farshadifar in 2007. This notion has obtained a great attention by many authors and now there is a considerable amount of ...
Habibollah Ansari-Toroghy   +1 more
doaj  

Ordered Structures and Projections

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
We associate a covering relation to the usual order relation defined in the set of all idempotent endomorphisms (projections) of a finite-dimensional vector space. A characterization is given of it.
M. Yazi
doaj   +1 more source

An endomorphism of the Khovanov invariant

open access: yesAdvances in Mathematics, 2005
To appear in Adv. Math.; Brief summary of Khovanov invariant (math.QA/9908171) and previous result of the author (math.GT/0201105 ...
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The dynamic of a Lie group endomorphism

open access: yesOpen Mathematics, 2017
For a given endomorphism φ on a connected Lie group G this paper studies several subgroups of G that are intrinsically connected with the dynamic behavior of φ.
Ayala Víctor   +2 more
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On geometry of sub-Riemannian η-Einstein manifolds

open access: yesДифференциальная геометрия многообразий фигур, 2019
On a sub-Riemannian manifold of contact type a connection with torsion is considered, called in the work a Ψ-connection. A Ψ-connection is a particular case of an N-connection.
S. Galaev
doaj   +1 more source

On exterior powers of endomorphisms

open access: yesLinear Algebra and its Applications, 1976
Let \(V\) be an n-dimensional vector space and \(T \in \Hom(V,V)\). The first result shows that if \(C_m(T)\), the m-th compound of \(T\), possesses a basis of eigenvectors, then lt possesses a basis consisting of decomposable eigenvectors in the m-th Grassmann space over \(V\). The paper also contains a simplified proof of a recent result of \textit{S.
Marvin Marcus, Herbert Robinson
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Endotypes of certain partial equivalence relations

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017
We classify certain partial equivalence relations according to their type of an endomorphism.
О. О. Тоічкіна
doaj   +1 more source

On semigroups of graph endomorphisms

open access: yesDiscrete 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.
Stephan Foldes, Gert Sabidussi
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