English
Related papers

Related papers: Automorphic Forms and Dirac Operators on Conformal…

200 papers

We discuss the construction and properties of an approximate solution of the Ginsparg-Wilson equation, the so-called chirally improved lattice Dirac operator. In particular we study the behavior of its eigenmodes in smooth instanton…

High Energy Physics - Lattice · Physics 2008-11-26 Christof Gattringer , Meinulf Göckeler , C. B. Lang , P. E. L. Rakow , Stefan Schaefer , Andreas Schäfer

We give more details about an integrable system in which the Dirac operator D=d+d^* on a finite simple graph G or Riemannian manifold M is deformed using a Hamiltonian system D'=[B,h(D)] with B=d-d^* + i b. The deformed operator D(t) = d(t)…

Mathematical Physics · Physics 2013-06-25 Oliver Knill

This paper deals with the massive three-dimensional Dirac operator coupled with a Lorentz scalar shell interaction supported on a compact smooth surface. The rigorous definition of the operator involves suitable transmission conditions…

Spectral Theory · Mathematics 2018-06-01 Markus Holzmann , Thomas Ourmières-Bonafos , Konstantin Pankrashkin

We describe a set of conformally covariant boundary operators associated to the Paneitz operator, in the sense that they give rise to a conformally covariant energy functional for the Paneitz operator on a compact Riemannian manifold with…

Differential Geometry · Mathematics 2015-09-29 Jeffrey S. Case

We study Dirac operators on resolutions of Riemannian orbifolds by developing a uniform elliptic theory. The key idea is to view orbifolds as conically fibred singular (CFS) spaces and resolve them by gluing asymptotically conical…

Differential Geometry · Mathematics 2025-09-23 Viktor F. Majewski

We prove the rigidity and vanishing of several indices of "geometrically natural" twisted Dirac operators on almost even-Clifford Hermitian manifolds admitting circle actions by automorphisms.

Differential Geometry · Mathematics 2017-04-25 Ana Lucia Garcia-Pulido , Rafael Herrera

In this survey we gather recent results on Dirac operators coupled with $\delta$-shell interactions. We start by discussing recent advances regarding the question of self-adjointness for these operators. Afterward we switch to an…

Mathematical Physics · Physics 2019-02-12 Thomas Ourmières-Bonafos , Fabio Pizzichillo

We consider a boundary value problem for the Dirac equation in a smooth, asymptotically flat Lorentzian manifold admitting a Killing field which is timelike near and tangential to the boundary. A self-adjoint extension of the Dirac…

Mathematical Physics · Physics 2016-07-27 Felix Finster , Christian Röken

In this paper we introduce and study generally non-self-adjoint realizations of the Dirac operator on an arbitrary finite metric graph. Employing the robust boundary triple framework, we derive, in particular, a variant of the Birman…

Mathematical Physics · Physics 2025-04-09 Markus Holzmann , Václav Růžek , Matěj Tušek

This paper has two main parts. First, we construct certain differential operators, which generalize operators studied by G. Shimura. Then, as an application of some of these differential operators, we construct certain p-adic families of…

Number Theory · Mathematics 2016-08-16 Ellen Eischen

Recently Dabrowski etc. \cite{DL} obtained the metric and Einstein functionals by two vector fields and Laplace-type operators over vector bundles, giving an interesting example of the spinor connection and square of the Dirac operator.…

Differential Geometry · Mathematics 2024-05-21 Jian Wang , Yong Wang , Tong Wu

In this paper we build on the framework developed in "Subelliptic Boundary Value Problems for the Spin_C Dirac Operator, I, II, III" to obtain a more complete understanding of the gluing properties for indices of boundary value problems for…

Analysis of PDEs · Mathematics 2007-05-23 Charles L. Epstein

We show that, for each symmetry class based on the tenfold way classification, the effective Dirac operator obtained by integrating out the additional bulk direction takes a value in the corresponding classifying space, from which we obtain…

High Energy Physics - Theory · Physics 2023-09-22 Taro Kimura , Masataka Watanabe

We give the description of self-adjoint regular Dirac operators, on $[0, \pi]$, with the same spectra.

Spectral Theory · Mathematics 2017-01-31 Yuri Ashrafyan , Tigran Harutyunyan

The article considers some concrete solutions to the Dirac equation coupled to a vector bundle with connection, arising in the study of Yang-Mills equations and vector bundles on Riemann surfaces.

Differential Geometry · Mathematics 2023-01-16 Nigel Hitchin

Functional determinants for Dirac operators on manifolds with boundary are considered. Ellipticity of boundary value problems is discussed in terms of the Calderon projector. The functional determinant for a Dirac operator on a…

High Energy Physics - Theory · Physics 2007-05-23 H. Falomir

I derive the overlap Dirac operator starting from the overlap formalism, discuss the numerical hurdles in dealing with this operator and present ways to overcome them.

High Energy Physics - Lattice · Physics 2011-07-19 Rajamani Narayanan

We investigate spectral features of the Dirac operator with infinite mass boundary conditions in a smooth bounded domain of $\mathbb{R}^2$. Motivated by spectral geometric inequalities, we prove a non-linear variational formulation to…

We discuss conformal manifolds for conformal field theories with boundaries or defects. Using conformal perturbation theory we derive constraints on coefficients appearing in the boundary operator product expansion and three-point functions…

High Energy Physics - Theory · Physics 2018-08-15 Andreas Karch , Yoshiki Sato

We consider the classical Dirac operator on globally hyperbolic manifolds with timelike boundary and show well-posedness of the Cauchy initial-boundary value problem coupled to APS-boundary conditions. This is achieved by deriving suitable…

Analysis of PDEs · Mathematics 2026-02-25 Nicolò Drago , Nadine Große , Simone Murro