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We establish the asymptotic formula for the number of integral points in non-compact symmetric homogeneous spaces of semi-simple simply connected algebraic groups over global function fields, given by the sum of the products of local…

Number Theory · Mathematics 2026-04-15 Sheng Chen , Jing Liu

We generalize the Bartsch-Li's splitting lemma at infinity for $C^2$-functionals in [2] and some later variants of it to a class of continuously directional differentiable functionals on Hilbert spaces. Different from the previous flow…

Functional Analysis · Mathematics 2015-01-27 Guangcun Lu

We define the Hardy spaces of free noncommutative functions on the noncommutative polydisc and the noncommutative ball and study their basic properties. Our technique combines the general methods of noncommutative function theory and…

Operator Algebras · Mathematics 2017-05-26 Mihai Popa , Victor Vinnikov

We present a short proof of the Kac-Ward formula for the partition function of the Ising model on planar graphs.

Mathematical Physics · Physics 2015-09-08 Marcin Lis

We study the product formula $(fg)(A) = f(A)g(A)$ in the framework of (unbounded) functional calculus of sectorial operators $A$. We give an abstract result, and, as corollaries, we obtain new product formulas for the holomorphic functional…

Functional Analysis · Mathematics 2014-09-30 Charles Batty , Alexander Gomilko , Yuri Tomilov

Let M and N be Orlicz functions. We establish some combinatorial inequalities and show that the product spaces l^n_M(l^n_N) are uniformly isomorphic to subspaces of L_1 if M and N are "separated" by a function t^r, 1<r<2.

Functional Analysis · Mathematics 2012-04-27 Joscha Prochno , Carsten Schuett

We investigate the notion of productive cellularity of arbitrary posets and topological spaces. Particularly, by working with families of antichains ordered with reverse inclusion, we give necessary and sufficient conditions to determine…

General Topology · Mathematics 2020-10-16 Renan Maneli Mezabarba , Leandro Fiorini Aurichi , Lucia Renato Junqueira

We study scalar field and string theory on non commutative q-deformed spaces. We define a product of functions on a non commutative algebra of functions resulting from the q-deformation analogue to the Moyal product for canonically non…

High Energy Physics - Theory · Physics 2023-01-10 Poula Tadros

We compute the Harish-Chandra $c$-function for a generic class of rank-one purely non-compact Riemannian symmetric superspaces $X=G/K$ in terms of Euler $\Gamma$ functions, proving that it is meromorphic. Compared to the even case, the…

Representation Theory · Mathematics 2015-01-06 Alexander Alldridge , Wolfgang Palzer

We present a simple way to derive the results of Diaconis and Fulman [arXiv:1102.5159] in terms of noncommutative symmetric functions.

Combinatorics · Mathematics 2013-02-12 Jean-Christophe Novelli , Jean-Yves Thibon

We use Poisson summation formula to calculate integrals of producs of sinc functions (cf. [4]) and related integrals as in [5] and [3]. We also generalize the one in [5] and introduce other remarkable integrals. Finally we give a sum…

Classical Analysis and ODEs · Mathematics 2014-07-01 Gert Almkvist , Jan Gustavsson

It is shown that if a space-time has non-compact Cauchy surface, then its topological, differentiable, and causal structure are completely determined by a class of compact subsets of its Cauchy surface. Since causal structure determines its…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Do-Hyung Kim

We establish a few formulas that compute the volume of the zero-set (or nodal set) of a function on a compact Riemannian manifold as integrals of functionals of the function and its derivatives.

Differential Geometry · Mathematics 2019-01-08 Benoît Jubin

In this paper, the authors study the matrix-valued harmonic functions and characterize them by the Poisson integral of functions in non-commutative BMO (bounded mean oscillation) spaces. This provides a very satisfactory non-commutative…

Classical Analysis and ODEs · Mathematics 2024-08-29 Cheng Chen , Guixiang Hong , Wenhua Wang

This paper deals with some simple results about spherical functions of type $\delta$, namely new integral formulas, new results about behavior at infinity and some facts about the related $C_\sigma$ functions.

Representation Theory · Mathematics 2017-09-12 Sigurdur Helgason

This is a paper about $c$-functions and Macdonald polynomials. There are $c$-function formulas for $E$-expansions of $P_\lambda$ and $A_{\lambda+\rho}$, principal specializations of $P_\lambda$ and $E_\mu$, for Macdonald's constant term…

Combinatorics · Mathematics 2022-12-08 Laura Colmenarejo , Arun Ram

In this note, we introduce and study a notion of bi-exactness for creation operators acting on full, symmetric and anti-symmetric Fock spaces. This is a generalization of our previous work, in which we studied the case of anti-symmetric…

Operator Algebras · Mathematics 2021-01-27 Kei Hasegawa , Yusuke Isono , Tomohiro Kanda

We establish a product formula for Gromov-Witten invariants for closed, connected, relatively semi-positive Hamiltonian fibrations over any symplectic base. Furthermore, we show that the fibration projection induces a locally trivial…

Symplectic Geometry · Mathematics 2010-03-16 Clément Hyvrier

We prove a summation formula for pairs of quadratic spaces following the conjectures of Braverman-Kazhdan, Lafforgue, Ng\^{o} and Sakellaridis. We also give an expression of the local factors where all the data are unramified.

Number Theory · Mathematics 2025-07-29 Miao Pam Gu

We decompose the crossed product functor for actions of crossed modules of locally compact groups on C*-algebras into more elementary constructions: taking crossed products by group actions and fibres in C*-algebras over topological spaces.…

Operator Algebras · Mathematics 2015-06-02 Alcides Buss , Ralf Meyer