Results 11 to 20 of about 22,596 (283)
Refined dual stable Grothendieck polynomials and generalized Bender-Knuth involutions [PDF]
Discrete Mathematics & Theoretical Computer Science, 2020 The dual stable Grothendieck polynomials are a deformation of the Schur functions, originating in the study of the K-theory of the Grassmannian. We generalize these polynomials by introducing a countable family of additional parameters such that the ...
Pavel Galashin, Darij Grinberg, Gaku Liu
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A Statistic on Involutions [PDF]
Journal of Algebraic Combinatorics, 2001 Given positive integers \(i< j\), the authors define an arc \([i, j]\) with span \(j-i-1\). An involution is a finite set of disjoint arcs. If \(i< k< j< l\), then \([i, j]\), \([k, l]\) are crossing arcs. \(I(n)\) denote the set of all involutions with arcs contained in \([n]\) (\(=\{1,2,\dots,n\}\)) and \(I(n, k)\) the set of involutions in \(I(n ...
DEODHAR, RS, SRINIVASAN, MK
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Small-scale geologic evidence for Vistulian decline cooling periods: case studies from the Łódź Region (Central Poland) [PDF]
Bulletin of the Geological Society of Finland, 2018 This study concerns small-scale features in the form of denivation structures, periglacial involutions, sharp-edged blocks, fragipan layers and frost fissures observed in various depositional environments of Central Poland. These are terrestrial evidence
D.A. Dzieduszyńska, J. Petera-Zganiacz
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Involutions on Baxter Objects [PDF]
Discrete Mathematics & Theoretical Computer Science, 2012 Baxter numbers are known to count several families of combinatorial objects, all of which come equipped with natural involutions. In this paper, we add a combinatorial family to the list, and show that the known bijections between these objects respect ...
Kevin Dilks
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Noncrossing partitions, toggles, and homomesy [PDF]
Discrete Mathematics & Theoretical Computer Science, 2020 We introduce n(n − 1)/2 natural involutions (“toggles”) on the set S of noncrossing partitions π of size n, along with certain composite operations obtained by composing these involutions.
David Einstein +6 more
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Involutions fixing CP(2n)×HP(2m+1) [PDF]
Journal of Hebei University of Science and TechnologyIn order to develop equivariant cobordism classification of manifolds with involutions whose fixed point sets are product of projective spaces, the equivariant cobordism classification of all manifolds with involutions (M,T) with fixed point set F=CP(2n)×
Suqian ZHAO +4 more
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Quaternion involutions and anti-involutions
Computers & Mathematics with Applications, 2007 The authors recall the definition of Hamilton's algebra of real quaternions. They define an involution of an algebra, without mentioning the structure where the involution takes place, and remark that the formal definition of an involution is not easy to find. Then an anti-involution is defined. Some calculations are added.
Todd A. Ell, Stephen J. Sangwine
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Weierstrass points on modular curves X0(N) fixed by the Atkin–Lehner involutions [PDF]
Arab Journal of Mathematical Sciences, 2023 Purpose – The authors have determined whether the points fixed by all the full and the partial Atkin–Lehner involutions WQ on X0(N) for N ≤ 50 are Weierstrass points or not.
Mustafa Bojakli, Hasan Sankari
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Involutions on S^6 with 3-dimensional fixed point set [PDF]
, 2010 In this article, we classify all involutions on S^6 with 3-dimensional fixed point set. In particular, we discuss the relation between the classification of involutions with fixed point set a knotted 3-sphere and the classification of free involutions on
Bredon +12 more
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Jordan triple (α,β)-higher ∗-derivations on semiprime rings
Demonstratio Mathematica, 2023 In this article, we define the following: Let N0{{\mathbb{N}}}_{0} be the set of all nonnegative integers and D=(di)i∈N0D={\left({d}_{i})}_{i\in {{\mathbb{N}}}_{0}} a family of additive mappings of a ∗\ast -ring RR such that d0=idR{d}_{0}=i{d}_{R}. DD is
Ezzat O. H.
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