Results 131 to 140 of about 406 (162)
On automorphisms of endomorphic rings of a vector space [PDF]
Časopis pro pěstování matematiky, 1973 openaire +1 more source
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Endomorphisms and automorphisms of the shift dynamical system
Mathematical Systems Theory, 1969Let \((X(g),a)\) be the shift dynamical system, where the phase space \(X(g)\) of this system is the set of all bisequences over a finite symbol set \(\mathcal S\) with \(\mathrm{card }g>1\). The topology of \(X(g)\) is the product topology induced by the discrete topology of \(\mathcal S\).
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Endomorphisms and Automorphisms for Factor Inclusions
1993We investigate some kinds of *;-endomorphisms and automorphisms for inclusions of type II1 factors in connection with Jones index theory.
Marie Choda
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Automorphism groups of endomorphisms of
Glasgow Mathematical Journal, 2022AbstractFor any algebraically closed field K and any endomorphism f of $\mathbb{P}^1(K)$ of degree at least 2, the automorphisms of f are the Möbius transformations that commute with f, and these form a finite subgroup of $\operatorname{PGL}_2(K)$ . In the moduli space of complex dynamical systems, the locus of maps with nontrivial automorphisms has
Julia Cai +3 more
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On Conditions for an Endomorphism to be an Automorphism
Algebra Colloquium, 2005If K is a set of automorphisms of a group G, an endomorphism θ : G → G is said to be K-pointwise if for each element t ∈ G, there exists an element φ ∈ K such that θ (t) = φ (t). This generalizes the notion of pointwise inner automorphism. We show that in some special cases, a K-pointwise endomorphism is necessarily an automorphism (it is not true in ...
Abdollahi, Alireza, Endimioni, Gérard
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Endomorphisms and automorphisms of squares of abelian groups
2008G. Cälugäreanu, P. Schultz
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Automorphisms of endomorphism semigroups of reflexive digraphs
Mathematische Nachrichten, 2010AbstractA reflexive digraph is a pair (X, ρ), where X is an arbitrary set and ρ is a reflexive binary relation on X. Let End (X, ρ) be the semigroup of endomorphisms of (X, ρ). We determine the group of automorphisms of End (X, ρ) for: digraphs containing an edge not contained in a cycle, digraphs consisting of arbitrary unions of cycles such that ...
Araújo, João +2 more
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Endomorphisms of the semigroup of order-preserving mappings
Semigroup Forum, 2010 We characterize the endomorphisms of the semigroup of all order-preserving mappings on a finite chain. We show that there are three types of endomorphism: automorphisms, constants, and a certain type of endomorphism with two idempotents in the ...
Vitor H Fernandes, J D Mitchell
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