Results 81 to 90 of about 487 (185)
Endomorphism spectra of graphs
Discrete Mathematics, 1992 Consider graphs \(G,H\) and a mapping \(f:V(G) \to V(H)\). Suppose that \(f\) is a homomorphism of \(G\) to \(H\), i.e., that any two vertices \(u,v\) in \(f(V(G))\), for which the sets \(f^{-1} (u)\) and \(f^{-1}(v)\) are joined in \(G\) by at least one edge, are adjacent in \(H\). If also conversely, for any two vertices \(u,v \in f(V(G))\) which are
Michael Böttcher, Ulrich Knauer
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Endotypes of certain partial equivalence relations
Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017 We classify certain partial equivalence relations according to their type of an endomorphism.
О. О. Тоічкіна
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End-regularity of generalized bicycle graph
AKCE International Journal of Graphs and Combinatorics, 2020 A graph G is called End-regular, if every endomorphism of G is regular as a monoid. In this article, we investigate End-regularity of bicycle graphs.
A. Rajabi, A. Erfanian, A. Azimi
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Ordered Structures and Projections
International 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
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The supersingular endomorphism ring problem given one endomorphism
IACR Communications in CryptologyGiven a supersingular elliptic curve E and a non-scalar endomorphism α of E, we prove that the endomorphism ring of E can be computed in classical time about disc(Z[α])^1/4, and in quantum subexponential time, assuming the generalised Riemann hypothesis.
Herlédan Le Merdy, Arthur +1 more
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Survey on comultiplication modules [PDF]
Surveys 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
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International Journal of Mathematics and Mathematical Sciences, 2016 We introduce the notion of fq-derivation as a new derivation of G-algebra. For an endomorphism map f of any G-algebra X, we show that at least one fq-derivation of X exists. Moreover, for such a map, we show that a self-map dqf of X is fq-derivation of X
Deena Al-Kadi
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Endomorphisms of superelliptic jacobians [PDF]
Mathematische Zeitschrift, 2008 Several typos have been ...
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Endomorphism Algebras of Jacobians
Advances in Mathematics, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On traces of Frobenius endomorphisms
Finite Fields and Their Applications, 2014 15 pages; to appear Finite Fields and Their ...
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