Results 11 to 20 of about 12,398 (276)

Integrability and Fusion Algebra for Quantum Mappings [PDF]

open access: yes, 1992
We apply the fusion procedure to a quantum Yang-Baxter algebra associated with time-discrete integrable systems, notably integrable quantum mappings. We present a general construction of higher-order quantum invariants for these systems.
Alekseev A   +38 more
core   +3 more sources

Commuting Traces of Biadditive Mappings, Commutativity-Preserving Mappings and Lie Mappings [PDF]

open access: yesTransactions of the American Mathematical Society, 1993
Using intricate but elementary calculations, the author obtains characterizations of Lie isomorphisms, Lie derivations, and other mappings of prime rings which extend a number of results in the literature. For the statement of all the results which follow, \(R\) and \(A\) are prime rings with neither of characteristic two and neither embedding in \(M_ ...
openaire   +2 more sources

A description of linear mappings in semiprime rings with involution [PDF]

open access: yesBIO Web of Conferences
The main purpose of this paper is to descriptive the action of the linear mappings in semi-prime rings and prime ring with involution. More precisely, we establish some results for centralizer mappings (resp.
Horan Angham Shaban, Atteya Mehsin Jabel
doaj   +1 more source

Common fixed point theorems for commuting k-uniformly Lipschitzian mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We give a common fixed point existence theorem for any sequence of commuting k-uniformly Lipschitzian mappings (eventually, for k=1 for any sequence of commuting nonexpansive mappings) defined on a bounded and complete metric space (X,d) with uniform ...
M. Elamrani, A. B. Mbarki, B. Mehdaoui
doaj   +1 more source

On strong commutativity‐preserving maps [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We identify some strong commutativity‐preserving maps on semiprime rings. Among other results, we prove the following. (i) A centralizing homomorphism f of a semiprime ring R onto itself is strong commutativity preserving. (ii) A centralizing antihomomorphism f of a 2‐torsion‐free semiprime ring R onto itself is strong commutativity preserving.
openaire   +2 more sources

Some New Common Fixed Point Theorems under Strict Contractive Conditions in G-Metric Spaces

open access: yesJournal of Applied Mathematics, 2012
We introduce some new types of pairs of mappings (𝑓,𝑔) on G-metric space called G-weakly commuting of type (𝐴𝑓) and G-R-weakly commuting of type (𝐴𝑓).
Zead Mustafa
doaj   +1 more source

Representations of quivers and mixed graphs [PDF]

open access: yes, 2013
This is a survey article for "Handbook of Linear Algebra", 2nd ed., Chapman & Hall/CRC, 2014. An informal introduction to representations of quivers and finite dimensional algebras from a linear algebraist's point of view is given.
Horn, Roger A., Sergeichuk, Vladimir V.
core   +1 more source

Common fixed point theorems for compatible mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
By using a compatibility condition due to Jungck we establish some common fixed point theorems for four mappings on complete and compact metric spaces These results also generalize a theorem of Sharma and Sahu.
Kenan Taş   +2 more
doaj   +1 more source

Real submanifolds of maximum complex tangent space at a CR singular point [PDF]

open access: yes, 2014
We study a germ of real analytic $n$-dimensional submanifold of ${\mathbf C}^n$ that has a complex tangent space of maximal dimension at a CR singularity. Under the condition that its complexification admits the maximum number of deck transformations, we
Gong, Xianghong, Stolovitch, Laurent
core   +8 more sources

Coexistence in interval effect algebras [PDF]

open access: yes, 2010
Motivated by the notion of coexistence of effect-valued observables, we give a characterization of coexistent subsets of interval effect ...
Jenča, Gejza
core   +1 more source

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