Results 21 to 30 of about 3,617 (306)
Bijections on m-level Rook Placements [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 Partition the rows of a board into sets of $m$ rows called levels. An $m$-level rook placement is a subset of squares of the board with no two in the same column or the same level.
Kenneth Barrese, Bruce Sagan
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Polyominoes determined by involutions [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 A permutomino of size n is a polyomino determined by particular pairs $(\pi_1, \pi_2)$ of permutations of length $n$, such that $\pi_1(i) \neq \pi_2(i)$, for $1 \leq i \leq n$.
Filippo Disanto, Simone Rinaldi
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Australian and New Zealand Journal of Ophthalmology, 1986 AbstractInvolutional ptosis was corrected by either an anterior or posterior approach in 105 eyelids The posterior approach was preferred unless there was a specific indication for the anterior approach which included excess skin and bulky eyelids At operation approximately 10% of cases were found to have fatty degenerative changes in the anterior part
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, 2023 It is shown that every $2n$-by-$2n$ matrix over a field $\mathbb{F}$ with determinant 1 is a product of (i) four or fewer skew-involutions ($A^2 = -I$) provided $\mathbb{F} \neq \mathbb{Z}_3$, and (ii) eight or fewer skew-involutions if $\mathbb{F ...
Joven, Jesus Paolo, Paras, Agnes
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Involutions and semiinvolutions [PDF]
Czechoslovak Mathematical Journal, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A New Graphical Representation of the Old Algebraic Structure
Journal of Mathematics, 2023 The most recent advancements in algebra and graph theory enable us to ask a straightforward question: what practical use does this graph connected with a mathematical system have in the real world?
Muhammad Nadeem +3 more
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International Journal of Mathematics and Mathematical Sciences, 2001 This paper is concerned with a class of functional differential equations whose argument transforms are involutions. In contrast to the earlier works in this area, which have used only involutions with a fixed point, we also admit involutions without a ...
Will Watkins
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Journal of High Energy Physics, 2021 We revisit D3-branes at toric CY3 singularities with orientifolds and their description in terms of dimer models. We classify orientifold actions on the dimer through smooth involutions of the torus. In particular, we describe new orientifold projections
Eduardo García-Valdecasas +3 more
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Involutions with fixed points in 2-Banach spaces
International 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
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Direct construction of quasi-involutory recursive-like MDS matrices from 2-cyclic codes
IACR 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
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