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Cauchy problems with SPDEs on the whole space are localized to Cauchy problems on a ball of radius $R$. This localization reduces various kinds of spatial approximation schemes to finite dimensional problems. The error is shown to be…

Numerical Analysis · Mathematics 2017-04-25 Máté Gerencsér , István Gyöngy

Some identities that involve the elliptic version of the Cauchy matrices are presented and proved. They include the determinant formula, the formula for the inverse matrix, the matrix product identity and the factorization formula.

Mathematical Physics · Physics 2023-05-05 V. Prokofev , A. Zabrodin

We obtain orthogonal polynomial self-duality functions for multi-species version of the symmetric exclusion process (SEP$(2j)$) and the independent random walker process (IRW) on a finite undirected graph. In each process, we have $n>1$…

Probability · Mathematics 2021-12-28 Zhengye Zhou

Using elementary means, we prove several identities involving the M\"obius function, generalizing in the multidimensional case well-known formulas coming from convolution arguments.

Number Theory · Mathematics 2018-04-18 Olivier Bordellès , Benoit Cloitre

We present an identity which can be regarded as a Pfaffian-Hafnian analogue of Borchardt's identity and as a generalization of Schur's identity. We give a proof using the complex analysis.

Combinatorics · Mathematics 2007-05-23 Masao Ishikawa , Hiroyuki Kawamuko , Soichi Okada

It has recently been emphasized that all known exact evaluations of gap probabilities for classical unitary matrix ensembles are in fact $\tau$-functions for certain Painlev\'e systems. We show that all exact evaluations of gap…

Mathematical Physics · Physics 2009-11-07 P. J. Forrester , N. S. Witte

We prove Schur--Weyl duality between the Brauer algebra $\mathfrak{B}_n(m)$ and the orthogonal group $O_{m}(K)$ over an arbitrary infinite field $K$ of odd characteristic. If $m$ is even, we show that each connected component of the…

Representation Theory · Mathematics 2014-02-26 Stephen Doty , Jun Hu

New family of extended Cauchy type identities is found and related Fermat type matrices are provided ready for applications in extended scope. This is achieved due to the use specifically non-commuting variables of extended finite operator…

Combinatorics · Mathematics 2008-02-11 A. KL. Kwasniewski

We discuss our conjecture for simply laced Lie algebras level two string functions of mark one fundamental weights and prove it for the $SO(2r)$ algebra. To prove our conjecture we introduce $q$-diagrams and examine the diagrammatic…

High Energy Physics - Theory · Physics 2015-06-03 Arel Genish , Doron Gepner

We define and study category $\mathcal O$ for a symplectic resolution, generalizing the classical BGG category $\mathcal O$, which is associated with the Springer resolution. This includes the development of intrinsic properties…

Representation Theory · Mathematics 2022-05-10 Tom Braden , Anthony Licata , Nicholas Proudfoot , Ben Webster

We give a proof of the Howe duality conjecture in local theta correspondence for symplectic-orthogonal or unitary dual pairs in arbitrary residual characteristic.

Number Theory · Mathematics 2015-06-17 Wee Teck Gan , Shuichiro Takeda

We introduce a quasisymmetric generalization of Berele and Regev's hook Schur functions and prove that these new quasisymmetric hook Schur functions decompose the hook Schur functions in a natural way. We examine the combinatorics of the…

Combinatorics · Mathematics 2016-06-23 Sarah K Mason , Elizabeth Niese

For a given Beurling-Carleson subset $E$ of the unit circle $\mathbb{T}$ which has positive Lebesgue measure, we give explicit formulas for measurable functions supported on $E$ such that their Cauchy transforms have smooth extensions from…

Functional Analysis · Mathematics 2022-05-06 Adem Limani , Bartosz Malman

We will present versions of the Rellich-Kondrachov theorem for pseudo-differential operators acting on localizable Hardy spaces. One of the techniques includes boundedness properties for pseudodifferential operators with symbols in the…

Analysis of PDEs · Mathematics 2018-10-11 G. Hoepfner , R. Kapp , T. Picon

We introduce the Schur class of functions, discrete analytic on the integer lattice in the complex plane. As a special case, we derive the explicit form of discrete analytic Blaschke factors and solve the related basic interpolation…

Complex Variables · Mathematics 2021-06-09 Daniel Alpay , Dan Volok

We introduce the notion of Schr\"odinger integral operators and prove sharp local and global regularity results for these (including propagators for the quantum mechanical harmonic oscillator). Furthermore we introduce general classes of…

Analysis of PDEs · Mathematics 2023-10-26 Alejandro J. Castro , Anders Israelsson , Wolfgang Staubach , Madi Yerlanov

We define and study rational discrete analytic functions and prove the existence of a coisometric realization for discrete analytic Schur multipliers.

Functional Analysis · Mathematics 2021-12-16 Daniel Alpay , Dan Volok

We establish Pfaffian analogues of the Cauchy--Binet formula and the Ishikawa--Wakayama minor-summation formula. Each of these Pfaffian analogues expresses a sum of products of subpfaffians of two skew-symmetric matrices in terms of a…

Combinatorics · Mathematics 2021-02-08 Soichi Okada

We present some identities related to the Cauchy-Schwarz inequality in complex inner product spaces. A new proof of the basic result on the subject of Strengthened Cauchy-Schwarz inequalities is derived using these identities. Also, an…

Numerical Analysis · Mathematics 2013-02-12 J. M. Aldaz

We consider Cauchy problem for a divergence form second order parabolic operator with rapidly oscillating coefficients that are periodic in spatial variable and random stationary ergodic in time. As was proved in [25] and [13] in this case…

Analysis of PDEs · Mathematics 2020-10-02 Marina Kleptsyna , Andrey Piatnitski , Alexandre Popier