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We compute the Szego kernel of the unit circle bundle of a negative line bundle dual to a regular quantum line bundle over a compact Kaehler manifold. As a corollary we provide an infinite family of smoothly bounded strictly pseudoconvex…

Differential Geometry · Mathematics 2012-07-30 Claudio Arezzo , Andrea Loi , Fabio Zuddas

Let $M = \tilde{M}/\Gamma$ be a Kahler manifold, where $\tilde{M}$ is the universal Kahler cover, and where $\Gamma$ is the deck transformation group. Let $(L, h) \to M$ be a positive Hermitian holomorophic line bundle. Lift the Hermitian…

Complex Variables · Mathematics 2016-12-13 Zhiqin Lu , Steve Zelditch

The Szego kernel of a strictly pseudoconvex domain admits a singularity on the boundary diagonal, which consists of a pole and logarithmic type singularity. In this paper, we prove that the integral over the boundary of the coefficient of…

Complex Variables · Mathematics 2007-05-23 Kengo Hirachi

We study infinite products of reproducing kernels with view to their use in dynamics (of iterated function systems), in harmonic analysis, and in stochastic processes. On the way, we construct a new family of representations of the Cuntz…

Functional Analysis · Mathematics 2013-01-22 D. Alpay , P. Jorgensen , I. Lewkowicz , I. Martziano

We consider the Szeg\H{o} reproducing kernel associated with the space of $H$-harmonic functions on the unit ball in n-dimensional space, i.e. functions that are characterized by being annihilated by the hyperbolic Laplacian. This paper…

Functional Analysis · Mathematics 2025-10-15 Matěj Moravík

The relation between the Ahlfors map and Szeg\"o kernel S(z, a) is classical. The Szeg\"o kernel is a solution of a Fredholm integral equation of the second kind with the Kerzman-Stein kernel. The exact zeros of the Ahlfors map are unknown…

Complex Variables · Mathematics 2014-12-19 Ali W. K. Sangawi , Kashif Nazar , Ali H. M. Murid

The two-fold aim of the paper is to unify and generalize on the one hand the double integrals of Beukers for $\zeta(2)$ and $\zeta(3),$ and those of the second author for Euler's constant $\gamma$ and its alternating analog $\ln(4/\pi),$…

Number Theory · Mathematics 2008-09-18 Jesus Guillera , Jonathan Sondow

We introduce a new biholomorphically invariant metric based on Fefferman's invariant Szego kernel and investigate the relation of the new metric to the Bergman and Carath\'eodory metrics. A key tool is a new absolutely invariant function…

Complex Variables · Mathematics 2011-09-19 David Barrett , Lina Lee

We give a new proof of Dennis Hejhal's theorem on the nondegeneracy of the matrix that appears in the identity relating the Bergman and Szego kernels of a smoothly bounded finitely connected domain in the plane. Mergelyan's theorem is at…

Complex Variables · Mathematics 2021-12-14 Steven R. Bell , Bjorn Gustafsson

For a weight function in the unit disk which is the modulus of a finite product of powers of Blaschke factors, we give a canonical representation for the reproducing kernel of the corresponding weighted Bergman space in terms of the values…

Complex Variables · Mathematics 2023-09-07 Erwin Miña-Díaz

The summation over spin structures, which is required to implement the GSO projection in the RNS formulation of superstring theories, often presents a significant impediment to the explicit evaluation of superstring amplitudes. In this…

High Energy Physics - Theory · Physics 2023-05-24 Eric D'Hoker , Martijn Hidding , Oliver Schlotterer

We give a simple proof of Tian's theorem that the Kodaira embeddings associated to a positive line bundle over a compact complex manifold are asymptotically isometric. The proof is based on the diagonal asymptotics of the Szego kernel (i.e.…

Mathematical Physics · Physics 2007-05-23 Steve Zelditch

We establish closed-form expressions for the infinite series sum from n=2 to infinity of arctanh(n^-k) for all integers k >= 2 by connecting these sums to infinite product formulas involving the gamma function. Our approach uses logarithmic…

General Mathematics · Mathematics 2026-03-04 Ryan Goulden

In any positive genus case, we show an explicit formula of the Mumford forms expressed by infinite products like Selberg type zeta values for Schottky groups. This result is considered as an extension of the formula in terms of Ramanujan's…

Number Theory · Mathematics 2014-09-05 Takashi Ichikawa

By treating the multiple argument identity of the logarithm of the Gamma function as a functional equation, we obtain a curious infinite product representation of the $sinc$ function in terms of the cotangent function. This result is…

General Mathematics · Mathematics 2023-06-12 Michael Milgram

A boundary integral equation method is presented for fast computation of the analytic capacities of compact sets in the complex plane. The method is based on using the Kerzman--Stein integral equation to compute the Szeg\"o kernel and then…

Complex Variables · Mathematics 2024-06-12 Mohamed M S Nasser , Christopher C. Green , Matti Vuorinen

We study properties of weighted Szeg\H{o} and Garabedian kernels on planar domains. Motivated by the unweighted case as explained in Bell's work, the starting point is a weighted Kerzman-Stein formula that yields boundary smoothness of the…

Complex Variables · Mathematics 2025-06-19 Aakanksha Jain , Kaushal Verma

The CR manifold M_m = { Im z_2= Re z_1^{2m} } (m=2,3,...) is the counterexample, which has been given by M. Christ and D. Geller, to analytic hypoellipticity of d-bar-b and real analyticity of the Szego kernel. In order to give a direct…

Complex Variables · Mathematics 2009-09-25 Joe Kamimoto

We show that the Bergman, Szego, and Poisson kernels associated to a finitely connected domain in the plane are all composed of finitely many easily computed functions of one variable. The new formulas give rise to new methods for computing…

Complex Variables · Mathematics 2008-02-03 Steven R. Bell

We describe the Szeg\"o kernel on a higher genus Riemann surface in terms of Szeg\"o kernel data coming from lower genus surfaces via two explicit sewing procedures where either two Riemann surfaces are sewn together or a handle is sewn to…

Quantum Algebra · Mathematics 2020-12-14 Michael P. Tuite , Alexander Zuevsky
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