Results 21 to 30 of about 496,846 (263)

Permutation tableaux and permutation patterns

open access: yesJournal of Combinatorial Theory, Series A, 2007
Clarification of proofs (thanks to referees); report on progress on our open problems by Burstein, Corteel, Eriksen, Reifegerste, and Viennot. 25 pages, 7 figures.
Steingrímsson, Einar   +1 more
openaire   +2 more sources

Differentially 4-Uniform Permutations with the Best Known Nonlinearity from Butterflies

open access: yesIACR Transactions on Symmetric Cryptology, 2017
Many block ciphers use permutations defined over the finite field F22k with low differential uniformity, high nonlinearity, and high algebraic degree to provide confusion. Due to the lack of knowledge about the existence of almost perfect nonlinear (APN)
Shihui Fu, Xiutao Feng, Baofeng Wu
doaj   +1 more source

GFD: An R Package for the Analysis of General Factorial Designs

open access: yesJournal of Statistical Software, 2017
Factorial designs are widely used tools for modeling statistical experiments in all kinds of disciplines, e.g., biology, psychology, econometrics and medicine. For testing null hypotheses in this framework, ANOVA methods are widely used.
Sarah Friedrich   +2 more
doaj   +1 more source

Bogdanov Map-based Permuted Double Image Encryption [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Chaos-based image encryption schemes shuffle the position of the pixels (confuse), change their values (diffuse), to camouflage the identity of the original image.
SUBASHINI V. JANARDHANAN   +1 more
doaj   +1 more source

Non-Nudgable Subgroups of Permutations [PDF]

open access: yes, 2017
Motivated by a problem from behavioral economics, we study subgroups of permutation groups that have a certain strong symmetry. Given a fixed permutation, consider the set of all permutations with disjoint inversion sets. The group is called non-nudgable,
Netzer, Tim
core   +2 more sources

Inversion Polynomials for Permutations Avoiding Consecutive Patterns [PDF]

open access: yes, 2014
In 2012, Sagan and Savage introduced the notion of $st$-Wilf equivalence for a statistic $st$ and for sets of permutations that avoid particular permutation patterns which can be extended to generalized permutation patterns.
Cameron, Naiomi, Killpatrick, Kendra
core   +1 more source

Phenolic Compounds and Skin Permeability: An In Silico Investigation [PDF]

open access: yesAvicenna Journal of Medical Biochemistry, 2023
Background: The skin is the largest organ of the body and provides the main barrier between the internal and external environment. Assessment of skin permeability is of critical importance for understanding and predicting in vivo efficacy and ...
Majdi Hammami   +4 more
doaj   +1 more source

On permutation-twisted free fermions and two conjectures [PDF]

open access: yes, 2013
We conjecture that the category of permutation-twisted modules for a multi-fold tensor product vertex operator superalgebra and a cyclic permutation of even order is isomorphic to the category of parity-twisted modules for the underlying vertex operator ...
Katrina Barron, Nathan, Vander Werf
core   +1 more source

Intervals and factors in the Bruhat order [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
Combinatorics
Bridget Eileen Tenner
doaj   +1 more source

Operators of equivalent sorting power and related Wilf-equivalences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We study sorting operators $\textrm{A}$ on permutations that are obtained composing Knuth's stack sorting operator \textrmS and the reverse operator $\textrm{R}$, as many times as desired.
Michael Albert, Mathilde Bouvel
doaj   +1 more source

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