English
Related papers

Related papers: A note on equivariant eta forms

200 papers

In this note we give a direct method to classify all stable forms on $\R^n$ as well as to determine their automorphism groups. We show that in dimension 6,7,8 stable forms coincide with non-degnerate forms. We present necessary conditions…

Differential Geometry · Mathematics 2008-05-03 Hong-Van Le , Martin Panak , Jiri Vanzura

We propose a relation between the $\eta$ invariant on a manifold with boundary, the $\eta$ invariants of edge states, and the $\eta$ invariant in an infinite volume limit. With the example of planar fermions with bag and chiral bag boundary…

High Energy Physics - Theory · Physics 2023-09-06 Rodrigo Fresneda , Lucas de Souza , Dmitri Vassilevich

This paper is a continuation of the paper [arXiv:0911.4725], investigating a natural radial deformation of the Fourier transform in the setting of Clifford analysis. At the same time, it gives extensions of many results obtained in…

Classical Analysis and ODEs · Mathematics 2013-02-06 Hendrik De Bie , Bent Orsted , Petr Somberg , Vladimir Soucek

General stochastic Euler schemes for ordinary differential equations are studied. We give proofs on the consistency, the rate of convergence and the asymptotic normality of these procedures.

Probability · Mathematics 2017-02-09 Johannes T. N. Krebs

Some connections between quadratic forms over the field of two elements, Clifford algebras of quadratic forms over the real numbers, real graded division algebras, and twisted group algebras will be highlighted. This allows to revisit real…

Rings and Algebras · Mathematics 2020-02-28 Alberto Elduque , Adrián Rodrigo-Escudero

We propose a normal form for single-qudit gates composed of Clifford and $T$-gates for qudits of odd prime dimension $p\geq 5$. We prove that any single-qudit Clifford+$T$ operator can be re-expressed in this normal form in polynomial time.…

Quantum Physics · Physics 2020-11-17 Akalank Jain , Amolak Ratan Kalra , Shiroman Prakash

We describe the equivariant cohomology ring of rationally smooth projective embeddings of reductive groups. These embeddings are the projectivizations of reductive monoids. Our main result describes their equivariant cohomology in terms of…

Algebraic Geometry · Mathematics 2015-07-21 Richard Gonzales

We define equivariant periodic cyclic homology for bornological quantum groups. Generalizing corresponding results from the group case, we show that the theory is homotopy invariant, stable and satisfies excision in both variables. Along…

K-Theory and Homology · Mathematics 2007-05-23 Christian Voigt

Associated with a symmetric Clifford system $\{P_0, P_1,\cdots, P_{m}\}$ on $\mathbb{R}^{2l}$, there is a canonical vector bundle $\eta$ over $S^{l-1}$. For $m=4$ and $8$, we construct explicitly its characteristic map, and determine…

Differential Geometry · Mathematics 2022-08-24 Chao Qian , Zizhou Tang , Wenjiao Yan

We discuss a certain class of absolutely irreducible group representations that behave nicely under the restriction to normal subgroups and subalgebras. These representations proved to be useful for the construction of abelian varieties…

Group Theory · Mathematics 2007-05-23 Yuri G. Zarhin

We prove a conjecture by De Giorgi on the elliptic regularization of semilinear wave equations in the finite-time case.

Analysis of PDEs · Mathematics 2010-11-03 Ulisse Stefanelli

We functorially identify similarity classes of line-bundle-valued quadratic forms on rank two vector bundles with isomorphism classes of pairs consisting of the degree zero and the degree one parts of the associated generalized Clifford…

Algebraic Geometry · Mathematics 2026-02-20 Soham Mondal , T. E. Venkata Balaji

The classical Clifford correspondence for normal subgroups is considered in the more general setting of semisimple Hopf algebras. We prove that this correspondence still holds if the extension determined by the normal Hopf subalgebra is…

Rings and Algebras · Mathematics 2009-01-13 S. Burciu

We give a $\delta$-constant criterion for equinormalizability of deformations of isolated (not necessarily reduced) curve singularities over smooth base spaces of dimension $\geq 1$. For one-parametric families of isolated curve…

Algebraic Geometry · Mathematics 2019-02-19 Công-Trình Lê

These notes are a self-contained short proof of the stability of persistence diagrams.

Algebraic Topology · Mathematics 2021-03-22 Primoz Skraba , Katharine Turner

We investigate the asymptotic behaviour of Castelnuovo-Mumford regularity of Ext and Tor, with respect to the homological degree, over complete intersection rings. We derive from a theorem of Gulliksen a linearity result for the regularity…

Commutative Algebra · Mathematics 2023-02-28 Marc Chardin , Dipankar Ghosh , Navid Nemati

In this paper we will use experimental and computational methods to find modular forms for non-congruence subgroups, and the modular forms for congruence subgroups that they are associated with via the Atkin--Swinnerton-Dyer correspondence.…

Number Theory · Mathematics 2009-10-06 L. J. P. Kilford

We establish a real version of Turrittin's result on polynomial and formal normal forms of linear systems of ODEs with meromorphic coefficients. Both the normal forms or the transformations used have only real coefficients. In order to…

Classical Analysis and ODEs · Mathematics 2023-05-16 Moulay Barkatou , Félix Álvaro Carnicero-Martín , Fernando Sanz Sánchez

We investigate long time numerical simulations of the inviscid Rayleigh-Taylor instability at Atwood number one using a boundary integral method. We are able to attain the asymptotic behavior for the spikes predicted by Clavin &…

Fluid Dynamics · Physics 2009-11-10 Laurent Duchemin , Christophe Josserand , Paul Clavin

We derive a set of Clifford-algebraic formulas for two major nonlinear conformal transformations of the physical quantities related to Maxwell's equations. The superiority of these formulas over their vector-tensorial counterparts are…

Mathematical Physics · Physics 2024-01-18 Leehwa Yeh