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It is shown that a covariant derivative on any d-dimensional manifold M can be mapped to a set of d operators acting on the space of functions on the principal Spin(d)-bundle over M. In other words, any d-dimensional manifold can be…

High Energy Physics - Theory · Physics 2009-11-11 Masanori Hanada , Hikaru Kawai , Yusuke Kimura

This paper aims to use topological methods to compute $\mathrm{Ext}$ between an irreducible representation of a finite monoid inflated from its group completion and one inflated from its group of units, or more generally coinduced from a…

Representation Theory · Mathematics 2024-04-03 Benjamin Steinberg

We construct Quantum Representation Theory which describes quantum analogue of representations in frame of "non-commutative linear geometry" developed by Manin. To do it we generalise the internal hom-functor to the case of adjunction with…

Quantum Algebra · Mathematics 2022-06-03 A. Silantyev

The relation between manifold topology, observables and gauge group is clarified on the basis of the classification of the representations of the algebra of observables associated to positions and displacements on the manifold. The guiding,…

Quantum Physics · Physics 2021-12-01 G. Morchio , F. Strocchi

In this paper we use fractal geometry to investigate boundary aspects of the first homology group for finite coverings of the modular surface. We obtain a complete description of algebraically invisible parts of this homology group. More…

Geometric Topology · Mathematics 2007-06-20 Marc Kesseböhmer , Bernd O. Stratmann

We define a new notion of cuspidality for representations of $\GL_n$ over a finite quotient $\Oh_k$ of the ring of integers $\Oh$ of a non-Archimedean local field $F$ using geometric and infinitesimal induction functors, which involve…

Representation Theory · Mathematics 2010-06-14 Anne-Marie Aubert , Uri Onn , Amritanshu Prasad , Alexander Stasinski

In this paper, which is part of a study of positive representations of locally compact groups in Banach lattices, we initiate the theory of positive representations of finite groups in Riesz spaces. If such a representation has only the…

Functional Analysis · Mathematics 2012-06-29 Marcel de Jeu , Marten Wortel

Let $G$ be a connected semisimple simply connected Lie group with a compact Cartan subgroup and let $\Gamma$ be a uniform lattice in $G$. Let $\widehat{G}_d$ denote the set of equivalence classes of unitary discrete series representations…

Representation Theory · Mathematics 2025-07-10 Kaustabh Mondal , Gunja Sachdeva

Building on the Atiyah--Singer holomorphic Lefschetz fixed-point theorem, we define ramification modules associated to the fixed loci of a finite group acting on a compact complex manifold. This allows us to generalize the Chevalley--Weil…

Algebraic Geometry · Mathematics 2025-10-14 Wenfei Liu , Renjie Lyu

The equivariant Kazhdan-Lusztig polynomial of a braid matroid may be interpreted as the intersection cohomology of a certain partial compactification of the configuration space of n distinct labeled points in the plane, regarded as a graded…

Representation Theory · Mathematics 2019-07-25 Nicholas Proudfoot , Ben Young

We study low-dimensional representations of matrix groups over general rings, by considering group actions on CAT(0) spaces, spheres and acyclic manifolds.

Geometric Topology · Mathematics 2017-10-10 Shengkui Ye

In a previous paper [M.~Hanada, H.~Kawai and Y.~Kimura, Prog. Theor. Phys. 114 (2005), 1295] it is shown that a covariant derivative on any n-dimensional Riemannian manifold can be expressed in terms of a set of n matrices, and a new…

High Energy Physics - Theory · Physics 2008-11-26 Masanori Hanada

An analysis of the boundary representations and C$^*$-envelopes of some finite-dimensional operator systems $\mathcal R$ is undertaken by considering relationships between operator-theoretic properties of a $d$-tuple $\mathfrak…

Operator Algebras · Mathematics 2026-01-26 Douglas Farenick , Chi-Kwong Li , Sushil Singla

Let $M$ be compact negatively curved manifold, $\Gamma =\pi_1(M)$ and $\tilde{M}$ be its universal cover. Denote by $B =\partial \tilde{M}$ the geodesic boundary of $\tilde{M}$ and by $\nu$ the Patterson-Sullivan measure on $X$. In this…

Dynamical Systems · Mathematics 2011-02-16 Uri Bader , Roman Muchnik

In this paper we study the integral cohomology of pure mapping class groups of surfaces, and other related groups and spaces, as FI-modules. We use recent results from Church, Miller, Nagpal and Reinhold to obtain explicit linear bounds for…

Algebraic Topology · Mathematics 2019-01-09 Rita Jimenez Rolland

Supervised manifold learning methods learn data representations by preserving the geometric structure of data while enhancing the separation between data samples from different classes. In this work, we propose a theoretical study of…

Machine Learning · Computer Science 2018-01-08 Elif Vural , Christine Guillemot

This paper is a sequel to "Localization of $\frak{u}$-modules. I", hep-th/9411050. We are starting here the geometric study of the tensor category $\cal{C}$ associated with a quantum group (corresponding to a Cartan matrix of finite type)…

q-alg · Mathematics 2008-02-03 M. Finkelberg , V. Schechtman

In this paper we give a spinorial representation of submanifolds of any dimension and codimension into Lie groups equipped with left invariant metrics. As applications, we get a spinorial proof of the Fundamental Theorem for submanifolds…

Differential Geometry · Mathematics 2017-04-05 Pierre Bayard , Julien Roth , Berenice Zavala Jiménez

In this article we extend several foundational results of the theory of complete minimal surfaces of finite index in the Euclidean space to minimal surfaces in asymptotically flat manifolds and, more generally, to marginally outer-trapped…

Differential Geometry · Mathematics 2014-04-08 Alessandro Carlotto

The van Est map is a map from Lie groupoid cohomology (with respect to a sheaf taking values in a representation) to Lie algebroid cohomology. We generalize the van Est map to allow for more general sheaves, namely to sheaves of sections…

Differential Geometry · Mathematics 2023-03-10 Joshua Lackman