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In this note we study a new cohomology attached to a function along the leaves of complex foliations. We also explain how this cohomology depends on the function and we study a relative cohomology and a Mayer-Vietoris sequence related to…

Differential Geometry · Mathematics 2010-12-07 Cristian Ida

We characterize isometric actions whose principal orbits are hypersurfaces through the existence of a linear connection satisfying a set of covariant equations in the same spirit as the Ambrose-Singer Theorem for homogeneous space. These…

Differential Geometry · Mathematics 2024-07-16 José Luis Carmona Jiménez , Marco Castrillón López , José Carlos Díaz-Ramos

In our previous article with Yukio Kametani, we investigated the geometric structure underlying a large scale interacting system on infinite graphs, via constructing a suitable cohomology theory called uniformly local cohomology, which…

Probability · Mathematics 2026-02-23 Kenichi Bannai , Makiko Sasada

The cosine transforms of functions on the unit sphere play an important role in convex geometry, the Banach space theory, stochastic geometry and other areas. Their higher-rank generalization to Grassmann manifolds represents an interesting…

Functional Analysis · Mathematics 2007-05-23 E. Ournycheva , B. Rubin

We show that some of the main structural constants for symmetric functions (Littlewood-Richardson coefficients, Kronecker coefficients, plethysm coefficients, and the Kostka--Foulkes polynomials) share symmetries related to the operations…

Combinatorics · Mathematics 2020-04-14 Emmanuel Briand , Rosa Orellana , Mercedes Rosas

We do further investigation in a certain cosine function defined for smooth Minkowski spaces. We prove that such function is symmetric if and only if the referred space is Euclidean, and also that it can be given in terms of the Gateaux…

Differential Geometry · Mathematics 2017-02-07 Vitor Balestro , Emad Shonoda

First, we shall formulate and prove Theorem of Lie-Kolchin type for a cone and derive some algebro-geometric consequences. Next, inspired by a recent result of Dinh and Sibony we pose a conjecture of Tits type for a group of automorphisms…

Algebraic Geometry · Mathematics 2018-06-20 JongHae Keum , Keiji Oguiso , De-Qi Zhang

\textit{Harmonic amoebas} are generalisations of amoebas of algebraic curves immersed in complex tori. Introduced in \cite{Kri}, the consideration of such objects suggests to enlarge the scope of tropical geometry. In the present paper, we…

Algebraic Geometry · Mathematics 2020-02-25 Lionel Lang

This work deals with function theory on quantum complex hyperbolic spaces. The principal notions are expounded. We obtain explicit formulas for invariant integrals on `finite' functions on a quantum hyperbolic space and on the associated…

Quantum Algebra · Mathematics 2011-08-18 O. Bershtein , S. D. Sinel'shchikov

A new recursion formula is presented for the correlation functions of the integrable spin 1/2 XXX chain with inhomogeneity. It relates the correlators involving n consecutive lattice sites to those with n-1 and n-2 sites. In a series of…

High Energy Physics - Theory · Physics 2007-05-23 H. Boos , M. Jimbo , T. Miwa , F. Smirnov , Y. Takeyama

A ratio of lattice correlation functions is identified from which the pion form factor can be obtained directly. Preliminary results from quenched Wilson simulations are presented.

High Energy Physics - Lattice · Physics 2014-11-17 Frederic D. R. Bonnet , Robert G. Edwards , George T. Fleming , Randy Lewis , David G. Richards

The operational Chow cohomology classes of a complete toric variety are identified with certain functions, called Minkowski weights, on the corresponding fan. The natural product of Chow cohomology classes makes the Minkowski weights into a…

alg-geom · Mathematics 2008-02-03 William Fulton , Bernd Sturmfels

The main purpose of this note is to provide a topological approach to defining additive functions on Riemannian co-compact normal coverings.

Differential Geometry · Mathematics 2015-11-09 Minh Kha

Motivated by a result on weak Markov dilations, we define a notion of characteristic function for ergodic and coisometric row contractions with a one-dimensional invariant subspace for the adjoints. This extends a definition given by G.…

Operator Algebras · Mathematics 2007-05-23 Santanu Dey , Rolf Gohm

In this paper we study some properties of the torsion function with Robin boundary conditions. Here we write the shape derivative of the $L^{\infty}$ and $L^p$ norms, for $p\ge 1$, of the torsion function, seen as a functional on a bounded…

Analysis of PDEs · Mathematics 2021-02-01 Rossano Sannipoli

We address the problem of interacting electrons in an external potential by introducing the occupied spectral density $\rho(\mathbf{r},\omega)$ as fundamental variable. First, we formulate the problem using an embedding framework, and prove…

Materials Science · Physics 2025-08-26 Andrea Ferretti , Nicola Marzari

We explicitly describe cohomology of the sheaf of differential forms with poles along a semiample divisor on a complete simplicial toric variety. As an application, we obtain a new vanishing theorem which is an analogue of the…

Algebraic Geometry · Mathematics 2007-05-23 Anvar Mavlyutov

We describe a Martin-L\"of style dependent type theory, called Cocon, that allows us to mix the intensional function space that is used to represent higher-order abstract syntax (HOAS) trees with the extensional function space that…

Programming Languages · Computer Science 2019-01-14 Brigitte Pientka , Andreas Abel , Francisco Ferreira , David Thibodeau , Rebecca Zucchini

Two-dimensional Coulomb gases on an annulus at a special inverse temperature $\beta = 2$ are studied by using the orthogonal polynomial method borrowed from the theory of random matrices. The correlation functions among the Coulomb gas…

Mathematical Physics · Physics 2026-03-30 Taro Nagao

This paper establishes an abstract Korovkin-type approximation theorem in general spaces, extending the framework of approximation theory to accommodate broader contexts. A critical result supporting this theorem is the proof that any…

Functional Analysis · Mathematics 2025-09-03 Dilek Söylemez , Mehmet Ünver