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We describe representations of groupoid C*-algebras on Hilbert modules over arbitrary C*-algebras by a universal property. For Hilbert space representations, our universal property is equivalent to Renault's Integration-Disintegration…

Operator Algebras · Mathematics 2019-04-30 Alcides Buss , Rohit Holkar , Ralf Meyer

In a first part, we give a new proof of Koenigs theorem and, in a second part, we determine the local form of all the superintegrable Riemannian Liouville metrics as well as their global geometries.

Mathematical Physics · Physics 2023-07-20 Galliano Valent

We improve the homology stability range for the 3rd integral homology of symplectic groups over commutative local rings with infinite residue field. As an application, we show that for local commutative rings containing an infinite field of…

K-Theory and Homology · Mathematics 2021-11-03 Marco Schlichting , Husney Parvez Sarwar

Local properties of the fundamental group of a path-connected topological space can pose obstructions to the applicability of covering space theory. A generalized covering map is a generalization of the classical notion of covering map…

Algebraic Topology · Mathematics 2020-04-14 Jeremy Brazas , Hanspeter Fischer

We study the $K$-theory and Swan theory of the group ring $R[G]$, when $G$ is a finite group and $R$ is any ring or ring spectrum. In this setting, the well-known assembly map for $K(R[G])$ has a companion called the coassembly map. We…

Algebraic Topology · Mathematics 2016-11-24 Cary Malkiewich

We study Whittaker--Fourier coefficients of automorphic forms on a quasi-split unitary group. We reduce the analogue of the Ichino--Ikeda conjectures to a conjectural local statement using the descent method of Ginzburg--Rallis--Soudry.

Number Theory · Mathematics 2017-01-12 Erez Lapid , Zhengyu Mao

This paper treats a holomorphic self-mapping f: Omega --> Omega of a bounded domain Omega in a separable Hilbert space H with a fixed point p. In case the domain is convex, we prove an infinite-dimensional version of the…

Complex Variables · Mathematics 2007-05-23 Joseph Cima , Ian Graham , Kang-Tae Kim , Steven G. Krantz

Bipartite correlations generated by non-signalling physical systems that admit a finite-dimensional local quantum description cannot exceed the quantum limits, i.e., they can always be interpreted as distant measurements of a bipartite…

Quantum Physics · Physics 2015-06-05 Tom Cooney , Marius Junge , Miguel Navascues , David Perez-Garcia , Ignacio Villanueva

We propose a mathematical framework that we call quantum, higher-order Fourier analysis. This generalizes the classical theory of higher-order Fourier analysis, which led to many advances in number theory and combinatorics. We define a…

Quantum Physics · Physics 2025-09-09 Kaifeng Bu , Weichen Gu , Arthur Jaffe

Let K $\subset$ G be compact connected Lie groups with common maximal torus T. Let (M, $\omega$) be a prequantisable compact connected symplectic manifold with a Hamiltonian G-action. Geometric quantisation gives a virtual representation of…

Symplectic Geometry · Mathematics 2014-12-02 Elisheva Adina Gamse

We give a relativistic spin network model for quantum gravity based on the Lorentz group and its q-deformation, the Quantum Lorentz Algebra. We propose a combinatorial model for the path integral given by an integral over suitable…

General Relativity and Quantum Cosmology · Physics 2009-10-31 John W. Barrett , Louis Crane

In this paper, we establish a precise connection between higher rho invariants and delocalized eta invariants. Given an element in a discrete group, if its conjugacy class has polynomial growth, then there is a natural trace map on the…

K-Theory and Homology · Mathematics 2019-05-13 Zhizhang Xie , Guoliang Yu

A general functional definition of the infinite dimensional quantum R-matrix satisfying the Yang-Baxter equation is given. A procedure for extracting a finite dimensional R-matrix from the general definition is demonstrated for the…

High Energy Physics - Theory · Physics 2007-05-23 D. Ts. Stoyanov

We present an algorithm for the determination of the local symmetry group for arbitrary k-points in 3D Brillouin zones. First, we test our implementation against tabulated results available for standard high-symmetry points (given by…

Materials Science · Physics 2023-10-23 Emanuele Maggio , Andriy Smolyanyuk , Jan M. Tomczak

Building on our previous work, we investigate an analogue of the differential symbol map used in the Bloch-Gabber-Kato theorem. Within this framework, for an appropriate variety over a field, the higher Chow group corresponds to the 0-th…

Number Theory · Mathematics 2025-06-13 Toshiro Hiranouchi , Rin Sugiyama

Let p > 2 be prime. We state and prove (under mild hypotheses on the residual representation) a geometric refinement of the Breuil-M\'ezard conjecture for 2-dimensional mod p representations of the absolute Galois group of Qp. We also state…

Number Theory · Mathematics 2013-03-21 Matthew Emerton , Toby Gee

We will introduce the notion of inductive limits of compact quantum groups as $W^*$-bialgebras equipped with some additional structures. We also formulate their unitary representation theories. Those give a more explicit…

Operator Algebras · Mathematics 2019-11-26 Ryosuke Sato

We characterize the finite codimension sub-K-algebras of K[[t]] as the solutions of a computable finite family of higher differential operators. For this end, we establish a duality between such a sub-algebras and the finite codimension…

Commutative Algebra · Mathematics 2023-12-20 Joan Elias

We obtain two explicit formulas for the full local character expansion of any irreducible representation of a p-adic general linear group in principal blocks. The first, generalizing previous work of the author on the Iwahori-spherical…

Representation Theory · Mathematics 2024-05-28 Maxim Gurevich

Using the theory of pro-p groups and relative Poincar\'{e} duality, we define a type of cobordism category well suited to arithmetic topology. We completely classify topological quantum field theories on these two-dimensional versions of…

Number Theory · Mathematics 2026-03-12 Nadav Gropper , Oren Ben-Bassat