Results 131 to 140 of about 3,811 (236)
Cylindric skew Schur functions
, 2006 Cylindric skew Schur functions, which are a generalisation of skew Schur functions, arise naturally in the study of P-partitions. Also, recent work of A.
McNamara, Peter
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Schur line defect correlators and giant graviton expansion
Journal of High Energy PhysicsWe consider Schur line defect correlators in four dimensional N $$ \mathcal{N} $$ = 4 U(N) SYM and their giant graviton expansion encoding finite N corrections to the large N limit.
M. Beccaria
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A characterization of metaplectic time–frequency representations
Bulletin of the London Mathematical Society, Volume 58, Issue 6, June 2026.Abstract We characterize all time–frequency representations that satisfy a general covariance property: any weak*‐continuous bilinear mapping that intertwines time–frequency shifts on the configuration space with time–frequency shifts on phase space is a multiple of a metaplectic time–frequency representation. This characterization offers an intrinsic,
Karlheinz Gröchenig, Irina Shafkulovska
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On inequalities for normalized Schur functions
European Journal of Combinatorics, 2016 This version fixes the error of the previous ...
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On the cohomology of finite‐dimensional nilpotent groups and Lie rings
Bulletin of the London Mathematical Society, Volume 58, Issue 6, June 2026.Abstract We establish vanishing results for the first cohomology group of nilpotent groups and Lie rings when the submodule of invariants is trivial. Our results are obtained within a model‐theoretic setting, namely for structures that are definable in a finite‐dimensional theory, which encompasses algebraic groups over algebraically closed fields ...
Samuel Zamour
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The Schur Harmonic Convexity of the Hamy Symmetric Function and Its Applications
Journal of Inequalities and Applications, 2009 We prove that the Hamy symmetric function Fn(x,r)=∑1≤i1<i2<⋯<ir≤n(∏j=1rxij)1/r is Schur harmonic convex for x∈R+n.
Yuming Chu, Yupei Lv
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On Odd Symplectic Schur Functions
Journal of Algebra, 1999 \textit{R. A. Proctor} in [Invent. Math. 92, No. 2, 307-332 (1988; Zbl 0621.22009)] defined a family of Laurent polynomials, called odd symplectic Schur functions, and showed that they behave like characters. In the present paper, the author confirmes a conjecture of Proctor regarding odd symplectic Schur functions, that is Conjecture 5.1 in the above ...
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On a conjecture on 2-reduced Schur functions and Schur's Q-functions
, 2022 Motivated by Sato and Mori's work on the Korteweg-de Vries (KdV) equation and the modified KdV equation, Mizukawa, Nakajima, and Yamada made a conjecture on 2-reduced Schur functions and Schur's Q-functions. The conjecture claims that certain sums of products of a Littlewood-Richardson coefficient and two 2-reduced Schur functions are equal to Schur's ...
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Oppenheim–Schur inequalities for causal products
Bulletin of the London Mathematical Society, Volume 58, Issue 6, June 2026.Abstract We establish a class of Oppenheim–Schur‐type inequalities for the convolutional Jury product of positive semidefinite matrices. These results extend the classical Schur and Oppenheim inequalities associated with the Hadamard product to a causal convolutional setting.
Dominique Guillot +2 more
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Spherical-Radial Multipliers on the Heisenberg Group
International Journal of Analysis and Applications, 2020 Let Hn be the (2n+1)-dimensional Heisenberg group. We consider a radial Fourier multiplier which is a spherical function on Hn and show that it is a Herz-Schur multiplier.
M.E. Egwe
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