activity
20112026
most citedSemiclassical limits of quantum partition functions on infinite graphs

10 citations · 24 across the 17 of their papers we have counts for

collaborators

22 papers

math.PR2026

Multigraphs and Time Ordered Isserlis-Wick formulae

Sergio Cacciatori, Batu Güneysu, Sebastian Wündsch

Given a m-dimensional Gaussian process and polynomial m variables with real coefficients, we calculate the induced path odered exponenial in two different ways: one is purely algeb…

math.FA2025

Strongly continuous fields of operators over varying Hilbert spaces

Ali BenAmor, Batu Güneysu, Thomas Kalmes +1

After introducing a natural notion of continuous fields of locally convex spaces, we establish a new theory of strongly continuous families of possibly unbounded self-adjoint opera…

math.DG2025

Lower bounds on the normal injectivity radius of hypersurfaces and bounded geometries on manifolds with boundary

Sebastian Boldt, Batu Güneysu, Stefano Pigola

We prove for the first time a pointwise lower estimate of the normal injectivity radius of an embedded hypersurface in an arbitrary Riemannian manifold. Main applications include:…

math.SP2024

A note on the scattering theory of Kato-Ricci manifolds

Batu Güneysu, Maxime Marot

In this note we prove a new criterion for the existence and completeness of the wave operators corresponding to the Laplace-Beltrami operators corresponding to two Riemannian…

math.DG2024

Fermionic Dyson expansions and stochastic Duistermaat-Heckman localization on loop spaces

Batu Güneysu, Jonas Miehe

Given a self-adjoint operator and (appropriate) densely defined and closed operators in a Hilbert space , we provide a systematic study…

math.DG2024

Neumann cut-offs and essential self-adjointness on complete Riemannian manifolds with boundary

Davide Bianchi, Batu Güneysu, Alberto G. Setti

We generalize some fundamental results for noncompact Riemannian manfolds without boundary, that only require completeness and no curvature assumptions, to manifolds with boundary:…

math.DG2023

Locally convex aspects of the Kato and the Dynkin class on manifolds

Batu Güneysu, Kazuhiro Kuwae

We consider the Kato and the Dynkin class and their local counterparts on a smooth Riemannian manifold as Fréchet spaces. Based on recent results by Carron, Mondello and Tewodrose…

math-ph2020★ 1 cited

Feynman-Kac formula for perturbations of order and noncommutative geometry

Sebastian Boldt, Batu Güneysu

Let be a differential operator of order on a complex metric vector bundle with metric connection over a possibly noncompact Riema…

math.DG2020★ 3 cited

Scattering Theory and Spectral Stability under a Ricci Flow for Dirac Operators

Sebastian Boldt, Batu Güneysu

Given a noncompact spin manifold with a fixed topological spin structure and two complete Riemannian metrics and on with bounded sectional curvatures, we prove a cr…

math-ph2019★ 3 cited

Hölder estimates for magnetic Schrödinger semigroups in from mirror coupling

Oliver Fürst, Batu Güneysu

We use the mirror coupling of Brownian motion to show that under a -dependent Kato type assumption (which is satisfied under a suitable -assumption on the electro-…

math-ph2019

spaces and the geometry of multi-particle Schrödinger semigroups

Batu Güneysu

With an space for some , , let be the self-adjoint Laplacian induced by the underlying Ch…

math.MG2019

Molecules as metric measure spaces with Kato-bounded Ricci curvature

Batu Güneysu, Max von Renesse

Set , with the ground state of an arbitrary molecule with electrons in the infinite mass limit (neglecting spin/statistics). Let $Σ\subset \IR^{3…

math.KT2019★ 1 cited

The Chern Character of θ-summable Fredholm Modules over dg Algebras and Localization on Loop Space

Batu Güneysu, Matthias Ludewig

We introduce the notion of a {\vartheta}-summable Fredholm module over a locally convex dg algebra Ω and construct its Chern character as a cocycle on the entire cyclic complex of…

math.KT2018

Odd characteristic classes in entire cyclic homology and equivariant loop space homology

Sergio Cacciatori, Batu Güneysu

Given a compact manifold and we construct a Chern character which lives in the odd part of the equivariant (entire) cycl…

math.DG2018

Covariant Schrödinger semigroups on Riemannian manifolds

Batu Güneysu

This monograph develops the theory of covariant Schrödinger semigroups acting on sections of vector bundles over noncompact Riemannian manifolds from scratch. Contents: I. Sobolev…

math.DG2017★ 1 cited

The BMS conjecture

Batu Güneysu

I explain an open conjecture by Braverman/Milatovic/Shubin (BMS) on the positivity of square integrable solutions of on a geodescially complete Riemannian manif…

math.DG2017

Scattering theory without injectivity radius assumptions and spectral stability for the Ricci flow

Batu Güneysu, Anton Thalmaier

We prove a completely new integral criterion for the existence and completeness of the wave operators corresponding to the (unique self-adjoint realiz…

math.SP2016★ 5 cited

Heat kernel estimates and the relative compactness of perturbations by potentials

Jochen Brüning, Batu Güneysu

We consider a self-adjoint non-negative operator in a Hilbert space . We assume that the semigroup is defined by an integr…

math.PR2016

On the semimartingale property of Brownian bridges on complete manifolds

Batu Güneysu

I prove that every adapted Brownian bridge on a geodesically complete connected Riemannian manifold is a semimartingale including its terminal time, without any further assumptions…

math-ph2014★ 10 cited

Semiclassical limits of quantum partition functions on infinite graphs

Batu Güneysu

We prove that if denotes the operator corresponding to the canonical Dirichlet form on a possibly locally infinite weighted graph , and if is such…

math-ph2011

On generalized Schrödinger semigroups

Batu Güneysu

We extend the Feynman-Kac formula for Schrödinger type operators on vector bundles over noncompact Riemannian manifolds to possibly very singular potentials that appear in hydrogen…

math-ph2011

Multiplicative matrix-valued functionals and the continuity properties of semigroups correspondings to partial differential operators with matrix-valued coefficients

Batu Güneysu

We define and examine certain matrix-valued multiplicative functionals with local Kato potential terms and use probabilistic techniques to prove that the semigroups of the correspo…