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Related papers: A generating operator for Rankin-Cohen brackets

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We prove that generating subspaces of matrix rings over finite fields are counted by polynomials. We use this result to define and study two-variable versions of polynomials counting isomorphism classes of absolutely irreducible…

Representation Theory · Mathematics 2025-10-09 Markus Reineke

We provide an algorithm to compute generators of the orthogonal group of the discriminant group associated to an integral quadratic lattice over the integers. We give a closed formula for its order.

Number Theory · Mathematics 2024-04-09 Simon Brandhorst , Davide Cesare Veniani

The definition of conservative-irreversible functions is extended to smooth manifolds. The local representation of these functions is studied and reveals that not each conservative-irreversible function is given by the weighted product of…

Mathematical Physics · Physics 2024-04-09 Dan Goreac , Jonas Kirchhoff , Bernhard Maschke

We construct generating functions for operators dual to systems of giant gravitons with open strings attached. These operators have a bare dimension of order $N$ so that the usual methods used to solve the planar limit are not applicable.…

High Energy Physics - Theory · Physics 2023-02-08 Warren Carlson , Robert de Mello Koch , Minkyoo Kim

This work presents an approach towards the representation theory of the braid groups $B_n$. We focus on finite-dimensional representations over the field of Laurent series which can be obtained from representations of infinitesimal braids,…

Representation Theory · Mathematics 2007-05-23 Ivan Marin

We consider a generalization of representations of quivers that can be derived from the ordinary representations of quivers by considering a product of arbitrary classical groups instead of a product of the general linear groups and by…

Representation Theory · Mathematics 2009-04-27 A. A. Lopatin

We compute the generating function of column-strict plane partitions with parts in {1,2,...,n}, at most c columns, p rows of odd length and k parts equal to n. This refines both, Krattenthaler's ["The major counting of nonintersecting…

Combinatorics · Mathematics 2007-05-23 Ilse Fischer

We show that there is a sequence of operations on the positively graded part of a differential graded algebra making it into an L-infinity algebra. The formulas for the higher brackets involve Bernoulli numbers. The construction generalizes…

Mathematical Physics · Physics 2010-11-23 Ezra Getzler

We consider selfinjective Artin algebras whose cohomology groups are finitely generated over a central ring of cohomology operators. For such an algebra, we show that the representation dimension is strictly greater than the maximal…

Representation Theory · Mathematics 2007-11-20 Petter Andreas Bergh

In this paper, we get the generating functions of q-Chebyshev polynomials using operator. Also considering explicit formulas of q-Chebyshev polynomials, we give new generalizations of q-Chebyshev polynomials called incomplete q-Chebyshev…

Number Theory · Mathematics 2016-03-28 Elif Ercan , Mirac Cetin Firengiz , Naim Tuglu

In this paper we first construct an analytic realization of the $C_\lambda$-extended oscillator algebra with the help of difference-differential operators. Secondly, we study families of $d$-orthogonal polynomials which are extensions of…

Mathematical Physics · Physics 2019-03-14 Fethi Bouzeffour , Wissem Jedidi

Let H_n be the Siegel upper half space and let F and G be automorphic forms on H_n of weights k and l, respectively. We give explicit examples of differential operators D acting on functions on H_n x H_n such that the restriction of…

alg-geom · Mathematics 2008-02-03 W. Eholzer , T. Ibukiyama

We give several new formulas which are useful for Schubert Calculus associated with the orthogonal groups and related orthogonal degeneracy loci.

Algebraic Geometry · Mathematics 2007-05-23 Alain Lascoux , Piotr Pragacz

Let $K$ be a compact group, and let $\rho$ be a representation of $K$ on a Hilbert space $\mathcal{H}_\rho$. We classify invariant subspaces of $\mathcal{H}_\rho$ in terms of range functions, and investigate frames of the form $\{\rho(\xi)…

Classical Analysis and ODEs · Mathematics 2015-09-24 Joseph W. Iverson

In the present note we discuss two different ring structures on the set of holomorphic discrete series of a causal symmetric space of Cayley type $G/H$ and we suggest a new interpretation of Rankin-Cohen brackets in terms of intertwining…

Representation Theory · Mathematics 2007-05-23 Gerrit van Dijk , Michael Pevzner

We give a method to construct new self-adjoint representations of the braid group. In particular, we give a family of irreducible self-adjoint representations of dimension arbitrarily large. Moreover we give sufficient conditions for a…

Representation Theory · Mathematics 2009-09-01 Claudia Maria Egea , Esther Galina

We use connection relations and series rearrangement to generalize generating functions for several higher continuous orthogonal polynomials in the Askey scheme, namely the Wilson, continuous dual Hahn, continuous Hahn, and…

Classical Analysis and ODEs · Mathematics 2014-10-24 Michael A. Baeder , Howard S. Cohl , Hans Volkmer

We introduce and study the notion of generating operators as those norm-one operators $G\colon X\longrightarrow Y$ such that for every $0<\delta<1$, the set $\{x\in X\colon \|x\|\leq 1,\ \|Gx\|>1-\delta\}$ generates the unit ball of $X$ by…

Functional Analysis · Mathematics 2023-06-06 Vladimir Kadets , Miguel Martin , Javier Meri , Alicia Quero

A family of bi-differential operators from $C^\infty\big(\Mat(m,\mathbb R)\times\Mat(m,\mathbb R)\big)$ into $C^\infty\big(\Mat(m,\mathbb R)\big)$ which are covariant for the projective action of the group $SL(2m,\mathbb R)$ on…

Representation Theory · Mathematics 2017-10-24 jean-Louis Clerc

We show how to construct relevant families of matrix product operators in one and higher dimensions. Those form the building blocks for the numerical simulation methods based on matrix product states and projected entangled pair states. In…

Quantum Physics · Physics 2010-05-04 V. Murg , J. I. Cirac , B. Pirvu , F. Verstraete