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Using the unbounded picture of analytical K-homology, we associate a well-defined K-homology class to an unbounded symmetric operator satisfying certain mild technical conditions. We also establish an ``addition formula'' for the Dirac…

K理论与同调 · 数学 2007-05-23 Hela Bettaieb , Michel Matthey , Alain Valette

We give variants of lifting construction, which define new classes of modular forms on the Siegel upper half-space of complex dimension 3 with respect to the full paramodular groups (defining moduli of Abelian surfaces with arbitrary…

alg-geom · 数学 2016-08-30 Valeri A. Gritsenko , Viacheslav V. Nikulin

A finite dimensional system with a quadratic Hamiltonian constraint is Dirac quantized in holomorphic, antiholomorphic and mixed representations. A unique inner product is found by imposing Hermitian conjugacy relations on an operator…

广义相对论与量子宇宙学 · 物理学 2010-11-01 Jorma Louko

We study the behaviour of automorphic L-Invariants associated to cuspidal representations of GL(2) of cohomological weight 0 under abelian base change and Jacquet-Langlands lifts to totally definite quaternion algebras. Under a standard…

数论 · 数学 2021-05-31 Lennart Gehrmann

In this paper we have generalized and studied the $K$-Weyl-Heisenberg frames, where $K$ is a bounded linear operator on $L^2(\mathbb{R}^d)$. We have obtained necessary and sufficient conditions for acertain system to be a…

泛函分析 · 数学 2021-11-16 Satyapriya , Raj Kumar , Ashok K. Sah , Sheetal

Random $s$-intersection graphs have recently received considerable attention in a wide range of application areas. In such a graph, each vertex is equipped with a set of items in some random manner, and any two vertices establish an…

物理与社会 · 物理学 2015-02-03 Jun Zhao , Osman Yağan , Virgil Gligor

In this paper we extend the $H^\infty$ functional calculus to quaternionic operators and to $n$-tuples of noncommuting operators using the theory of slice hyperholomorphic functions and the associated functional calculus, called…

泛函分析 · 数学 2015-11-25 D. Alpay , F. Colombo , T. Qian , I. Sabadini

A theorem of Kontsevich relates the homology of certain infinite dimensional Lie algebras to graph homology. We formulate this theorem using the language of reversible operads and mated species. All ideas are explained using a pictorial…

量子代数 · 数学 2007-05-23 Swapneel Mahajan

Consider a connected orientable surface $S$ of infinite topological type, i.e. with infinitely-generated fundamental group. We describe the large-scale geometry of arbitrary connected subgraphs of the arc complex $A(S)$ and curve complex…

几何拓扑 · 数学 2021-06-18 Javier Aramayona , Ferrán Valdez

It is known that a graph isomorphism testing algorithm is polynomially equivalent to a detecting of a graph non-trivial automorphism algorithm. The polynomiality of the latter algorithm, is obtained by consideration of symmetry properties…

综合数学 · 数学 2007-05-23 Aleksandr Golubchik

We generalize the Harary-Sachs theorem to $k$-uniform hypergraphs: the codegree-$d$ coefficient of the characteristic polynomial of a uniform hypergraph ${\cal H}$ can be expressed as a weighted sum of subgraph counts over certain…

组合数学 · 数学 2021-07-23 Gregory J. Clark , Joshua Cooper

A plethora of spaces in Functional Analysis (Braun-Meise-Taylor and Carleman ultradifferentiable and ultraholomorphic classes; Orlicz, Besov, Lipschitz, Lebesque spaces, to cite the main ones) are defined by means of a weighted structure,…

泛函分析 · 数学 2022-12-29 Javier Jiménez-Garrido , Javier Sanz , Gerhard Schindl

A closed spin K\"ahler manifold of positive scalar curvature with smallest possible first eigenvalue of the Dirac operator is characterized by holomorphic spinors. It is shown that on any spin K\"ahler-Einstein manifold each holomorphic…

微分几何 · 数学 2007-05-23 Klaus-Dieter Kirchberg

This is the second in a series of three articles about recovering the full algebraic structure of a boundary conformal field theory (CFT) from the scaling limit of the critical Ising model in slit-strip geometry. Here we study the fusion…

数学物理 · 物理学 2021-08-12 Taha Ameen , Kalle Kytölä , S. C. Park

In [9], the celebrated K{\L}-inequality has been extended from definable functions $f:\mathbb{R}^{n}\rightarrow\mathbb{R} $ to definable multivalued maps $S:\mathbb{R}\rightrightarrows\mathbb{R}^{n}$, by establishing that the co-derivative…

最优化与控制 · 数学 2021-10-19 Aris Daniilidis , Sebastián Tapia-García

In this article we give a construction of the resolution graphs of hypersurface surface singularities (X_k,0) given by generalized Iomdin series. All these resolution graphs are coordinated by an ``universal bi-colored graph'' which is…

代数几何 · 数学 2007-05-23 András Némethi , Ágnes Szilárd

The Casselman-Wallach theorem is a foundational result in the theory of representations of real reductive groups connecting algebraic representations to topological representations. We provide a quantitative version of this theorem. For…

表示论 · 数学 2025-10-13 Joseph Bernstein , Pritam Ganguly , Bernhard Krötz , Job Kuit , Eitan Sayag

We study the minimization problem for eigenvalues of the Dirac operator within a fixed conformal class on a closed spin Riemannian manifold. We establish a criterion for the existence of a minimizer for this variational problem, focusing…

微分几何 · 数学 2026-04-17 Pavel Martynyuk

We study a one-parameter family of self-adjoint normal operators for the X-ray transform on the closed Euclidean disk ${\mathbb D}$, obtained by considering specific singularly weighted $L^2$ topologies. We first recover the well-known…

偏微分方程分析 · 数学 2022-12-07 Rohit Kumar Mishra , François Monard , Yuzhou Zou

A classical result due to Lovasz (1967) shows that the isomorphism type of a graph is determined by homomorphism counts. That is, graphs G and H are isomorphic whenever the number of homomorphisms from K to G is the same as the number of…

范畴论 · 数学 2021-11-12 Luca Reggio