English
Related papers

Related papers: Index Theory on Incomplete Cusp Edge Spaces

200 papers

Let $(M, \rho,\mu)$ be an RD-space satisfying the non-collapsing condition. In this paper, the authors introduce Besov-type spaces $B_{p,q}^{s,\tau}(M)$ and Triebel--Lizorkin-type spaces $F_{p,q}^{s,\tau}(M)$ associated to a non-negative…

Classical Analysis and ODEs · Mathematics 2015-05-05 Liguang Liu , Dachun Yang , Wen Yuan

In this paper we define the deficiency indices of a closed symmetric right $\mathbb{H}$-linear operator and formulate a general theory of deficiency indices in a right quaternionic Hilbert space. This study provides a necessary and…

Mathematical Physics · Physics 2017-09-11 B. Muraleetharan , K. Thirulogasanthar

In this paper, we discuss index theory for Toeplitz operators on a discrete quarter-plane of two-variable rational matrix function symbols. By using Gohberg-Krein theory for matrix factorizations, we extend the symbols defined originally on…

K-Theory and Homology · Mathematics 2023-01-04 Shin Hayashi

We consider the massless Dirac operator with the MIT bag boundary conditions on an unbounded three-dimensional circular cone. For convex cones, we prove that this operator is self-adjoint defined on four-component $H^1$--functions…

Analysis of PDEs · Mathematics 2023-06-14 Biagio Cassano , Vladimir Lotoreichik

This article is concerned with some weighted norm inequalities for the so-called horizontal (i.e. involving time derivatives) area integrals associated to a non-negative self-adjoint operator satisfying a pointwise Gaussian estimate for its…

Analysis of PDEs · Mathematics 2011-09-09 Ruming Gong , Lixin Yan

In this paper, we define two generalisations of Dirac operators for Drinfeld's Hecke algebra. One generalisation, Parthasarathy operators inherit the notion of the Dirac inequality. The second generalisation, warped Dirac operators are such…

Representation Theory · Mathematics 2024-03-12 Kieran Calvert

We investigate the self-adjointness of the two-dimensional Dirac operator $D$, with quantum-dot and Lorentz-scalar $\delta$-shell boundary conditions, on piecewise $C^2$ domains with finitely many corners. For both models, we prove the…

Analysis of PDEs · Mathematics 2019-12-20 Fabio Pizzichillo , Hanne Van Den Bosch

We obtain Gaussian upper bounds for heat kernels of higher order differential operators with Dirichlet boundary conditions on bounded domains in $\R^N$. The bounds exhibit explicitly the nature of the spatial decay of the heat kernel close…

Analysis of PDEs · Mathematics 2012-08-01 Narinder Claire

This paper develops a new Hilbert space method to characterize a family of reproducing kernel Hilbert spaces of real harmonic functions in a bounded Lipschitz domain $\Omega \subset \mathbb R^d, d\geq 2$ involving some families of positive…

Analysis of PDEs · Mathematics 2019-07-25 Soumia Touhami , Abdellatif Chaira

Let $G$ be a connected real reductive group with maximal compact subgroup $K$ of equal rank, and let $\mathscr M$ be the category of Harish-Chandra modules for $G$. We relate three differentely defined pairings between two finite length…

Representation Theory · Mathematics 2014-09-16 David Renard

We establish an $\mathrm{L}^p$-index theorem for Dolbeault--Dirac operators on compact K\"ahler manifolds with coefficients in a Hermitian holomorphic vector bundle $E$. For every $p \in (1,\infty)$, we prove that the closed…

Functional Analysis · Mathematics 2026-05-21 Cédric Arhancet

In this paper, we study the separability and spectral properties of singular degenerate elliptic equations in vector valued spaces. We prove that a realization operator by this equation with some boundary conditions is separable and…

Analysis of PDEs · Mathematics 2017-06-06 Veli Shakhmurov

We consider the mapping properties of generalized Laplace-type operators ${\mathcal L} = \nabla^* \nabla + {\mathcal R}$ on the class of quasi-asymptotically conical (QAC) spaces, which provide a Riemannian generalization of the QALE…

Differential Geometry · Mathematics 2018-01-17 Anda Degeratu , Rafe Mazzeo

A method for calculation of the DWSG coefficients for operators in spaces with metric incompatible with connection is suggested based on a generalization of the pseudodifferential operators technique. By using the proposed method, the…

High Energy Physics - Theory · Physics 2007-05-23 E. V. Gorbar , V. A. Kushnir

Denoting by $\Delta_\nu$ the Fubini-Study Laplacian perturbed by a uniform magnetic field strength proportional to $\nu$, this operator has a discrete spectrum consisting on eigenvalues $\beta_m, \ m\in\mathbb{Z}_+$, when acting on bounded…

Mathematical Physics · Physics 2022-02-07 K. Ahbli , A. Hafoud , Z. Mouayn

In this paper, we have considered vector valued reproducing kernel Hilbert spaces (RKHS) $\mathcal{H}$ of entire functions associated with operator valued kernel functions. de Branges operators $\mathfrak{E}=(E_- , E_+)$ analogous to de…

Functional Analysis · Mathematics 2023-12-07 Subhankar Mahapatra , Santanu Sarkar

Real and complex Clifford bundles and Dirac operators defined on them are considered. By using the index theorems of Dirac operators, table of topological invariants is constructed from the Clifford chessboard. Through the relations between…

Mathematical Physics · Physics 2017-10-20 Ümit Ertem

We investigate the spectral and index-theoretic properties of the Hodge-Dirac operator $D = \mathrm{d} + \mathrm{d}^*$ acting on the Banach space $\mathrm{L}^p(\Omega^\bullet(M))$ of differential forms over a compact Riemannian manifold…

Functional Analysis · Mathematics 2026-05-26 Cédric Arhancet

The purpose of this paper is to make an explicit construction of specific self-adjoint extensions of the Dirac Hamiltonian in the presence of a $\delta$-sphere interaction of finite radius. The exact resolvent kernel of the free Dirac…

High Energy Physics - Theory · Physics 2007-05-23 Gabriel Y. H. Avossevou , Jan Govaerts , M. Norbert Hounkonnou

When the index bundle of a longitudinal Dirac type operator is transversely smooth, we define its Chern character in Haefliger cohomology and relate it to the Chern character of the $K-$theory index. This result gives a concrete connection…

Geometric Topology · Mathematics 2007-05-23 Moulay Benameur , James Heitsch