Results 31 to 40 of about 22,596 (283)

Diagram automorphisms of quiver varieties [PDF]

open access: yes, 2014
We show that the fixed-point subvariety of a Nakajima quiver variety under a diagram automorphism is a disconnected union of quiver varieties for the `split-quotient quiver' introduced by Reiten and Riedtmann.
Henderson, Anthony, Licata, Anthony
core   +1 more source

Involutions with fixed points in 2-Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Some results on fixed points of involution maps in 2-Banach spaces have been obtained. These are extensions of those proved earlier by Goebel-Zlotkiewicz, Sharma-Sharma, Assad-Sessa and Iśeki.
M. S. Khan, M. D. Khan
doaj   +1 more source

Return words of linear involutions and fundamental groups [PDF]

open access: yes, 2015
We investigate the natural codings of linear involutions. We deduce from the geometric representation of linear involutions as Poincar\'e maps of measured foliations a suitable definition of return words which yields that the set of first return words to
Berthé, Valérie   +5 more
core   +3 more sources

Involutions of real intervals

open access: yes, 2013
This paper shows a simple construction of the continuous involutions of real intervals in terms of the continuous even functions. We also study the smooth involutions defined by symmetric equations. Finally, we review some applications, in particular the
Zampieri, Gaetano
core   +1 more source

Direct construction of quasi-involutory recursive-like MDS matrices from 2-cyclic codes

open access: yesIACR Transactions on Symmetric Cryptology, 2017
A good linear diffusion layer is a prerequisite in the design of block ciphers. Usually it is obtained by combining matrices with optimal diffusion property over the Sbox alphabet.
Victor Cauchois   +2 more
doaj   +1 more source

Functional differential equations—a reciprocity principle

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
The functional differential equations proposed for solution here are mainly ordinary differential equations with fairly general argument deviations. Included among them are equations with involutions and some with reflections of the argument.
Lloyd K. Williams
doaj   +1 more source

Descent sets on 321-avoiding involutions and hook decompositions of partitions

open access: yes, 2014
We show that the distribution of the major index over the set of involutions in S_n that avoid the pattern 321 is given by the q-analogue of the n-th central binomial coefficient.
Barnabei, Marilena   +3 more
core   +1 more source

Hyperstability for a Generalized Class of Pexiderized Functional Equations on Monoids via Páles’ Approach

open access: yesMathematics
In this paper, we deduce some hyperstability results for a generalized class of homogeneous Pexiderized functional equations, expressed as ∑ρ∈Γfxρ.y=ℓf(x)+ℓg(y), x,y∈M, which is inspired by the concept of Ulam stability.
Rashad M. Asharabi, Muaadh Almahalebi
doaj   +1 more source

Indecomposable permutations with a given number of cycles [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
A permutation $a_1a_2 \ldots a_n$ is $\textit{indecomposable}$ if there does not exist $p \lt n$ such that $a_1a_2 \ldots a_p$ is a permutation of $\{ 1,2, \ldots ,p\}$.
Robert Cori, Claire Mathieu
doaj   +1 more source

Interior BCK/BCI-Algebras

open access: yesInternational Journal of Computational Intelligence Systems, 2021
The notions of interior BCK/BCI-algebras, positive implicative interior BCK-algebras, (weak) interior ideals, positive implicative interior ideals, a positive implicative weak interior ideal of type 1, type 2, and type 3 are introduced, and related ...
Sun Shin Ahn   +2 more
doaj   +1 more source

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