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The formula for analytic torsion of a cone in even dimensions is comprised of three terms. The first two terms are well understood and given by an algebraic combination of the Betti numbers and the analytic torsion of the cone base. The…

谱理论 · 数学 2015-02-02 Boris Vertman

We study the Reidemeister torsion and the analytic torsion of the $m$ dimensional disc in the Euclidean $m$ dimensional space, using the base for the homology defined by Ray and Singer in \cite{RS}. We prove that the Reidemeister torsion…

微分几何 · 数学 2012-10-12 L. Hartmann , T. de Melo , M. Spreafico

We compute the analytic torsion of a cone over a sphere of dimension 1, 2, and 3, and we conjecture a general formula for the cone over an odd dimensional sphere.

微分几何 · 数学 2012-10-12 L. Hartmann , M. Spreafico

We study the analytic torsion of the cone over an orientable odd dimensional compact connected Riemannian manifold W. We prove that the logarithm of the analytic torsion of the cone decomposes as the sum of the logarithm of the root of the…

微分几何 · 数学 2012-10-12 L. Hartmann , M. Spreafico

We prove a formula relating the analytic torsion and Reidemeister torsion on manifolds with boundary in the general case when the metric is not necessarily a product near the boundary. The product case has been established by W. Lu\"ck and…

微分几何 · 数学 2007-05-23 Xianzhe Dai , Hao Fang

In this paper we study the analytic torsion of an odd-dimensional manifold with isolated conical singularities. First we show that the analytic torsion is invariant under deformations of the metric which are of higher order near the…

谱理论 · 数学 2015-02-02 Werner Mueller , Boris Vertman

We prove that the anomaly term appearing in the ratio between Reidemeister torsion and analytic torsion for a space with a conical singularity vanishes in the smooth case. Moreover, we show that such anomaly term is non trivial for the cone…

微分几何 · 数学 2022-09-15 Luiz Hartmann , Mauro Spreafico

We analyze the structure of the boundary terms in the conformal anomaly integrated over a manifold with boundaries. We suggest that the anomalies of type B, polynomial in the Weyl tensor, are accompanied with the respective boundary terms…

高能物理 - 理论 · 物理学 2015-12-09 Sergey N. Solodukhin

We develop a general regulated volume expansion for the volume of a manifold with boundary whose measure is suitably singular along a separating hypersurface. The expansion is shown to have a regulator independent anomaly term and a…

微分几何 · 数学 2018-06-08 A. Rod Gover , Andrew Waldron

We investigate an overdetermined Torsion problem, with a non-constant positively homogeneous boundary constraint on the gradient. We interpret this problem as the Euler equation of a shape optimization problems, we prove existence and…

偏微分方程分析 · 数学 2014-06-26 Chiara Bianchini , Antoine Henrot , Paolo Salani

M-theory can be defined on closed manifolds as well as on manifolds with boundary. As an extension, we show that manifolds with corners appear naturally in M-theory. We illustrate this with four situations: The lift to bounding twelve…

高能物理 - 理论 · 物理学 2011-05-26 Hisham Sati

We prove equality of analytic and topological $L^2$-torsion associated with an odd-dimensional finite volume hyperbolic manifold and a representation of the fundamental group which extends to the ambient Lie group. This generalizes a…

代数拓扑 · 数学 2020-12-02 Benjamin Waßermann

We prove that there exists, in every dimension, a unique (modulo rotations about the origin and time translations) convex ancient mean curvature flow in the ball with free boundary on the sphere.

微分几何 · 数学 2022-04-15 Theodora Bourni , Mat Langford

This note introduces a class of nonlinear Neumann problems on balls expanding with the radii tending towards infinity. Performing singular perturbation arguments, we establish the corresponding concentration phenomenon and refined…

偏微分方程分析 · 数学 2019-09-24 Chiun-Chang Lee

This paper gives sharp linear bounds on the genus of a normal surface in a triangulated compact, orientable 3--manifold in terms of the quadrilaterals in its cell decomposition---different bounds arise from varying hypotheses on the surface…

几何拓扑 · 数学 2016-07-20 William Jaco , Jesse Johnson , Jonathan Spreer , Stephan Tillmann

We prove the equality of the $L^2$-analytic torsion and the intersection R torsion of the even dimensional finite metric cone over an odd dimensional compact manifold.

微分几何 · 数学 2014-10-03 Luiz Hartmann , Mauro Spreafico

We extend to higher dimensions earlier sharp bounds for the area of two dimensional free boundary minimal surfaces contained in a geodesic ball of the round sphere. This follows work of Brendle and Fraser-Schoen in the euclidean case.

微分几何 · 数学 2018-10-12 Brian Freidin , Peter McGrath

We give a sharp lower bound on the area of the domain enclosed by an embedded curve lying on a two-dimensional sphere, provided that geodesic curvature of this curve is bounded from below. Furthermore, we prove some dual inequalities for…

微分几何 · 数学 2016-05-31 Alexander Borisenko , Kostiantyn Drach

We give an explicit formula for the $L^2$ analytic torsion of the finite metric cone over an oriented compact connected Riemannian manifold. We provide an interpretation of the different factors appearing in this formula. We prove that the…

微分几何 · 数学 2015-07-14 L. Hartmann , M. Spreafico

I reproduce, in the case of a conical geometry, the torque anomaly recently noted by Fulling, Mera and Trendafilova for the wedge. The expected conservation equation is obtained by a variational method and a mathematical cancellation of the…

高能物理 - 理论 · 物理学 2013-02-07 J. S. Dowker
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