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In this paper we construct a family of examples of self-dual Einstain metrics of neutral signature, which are not Ricci flat, nor locally homogenous. Curvature of these manifolds is studied in details. These are obtained by the…

Differential Geometry · Mathematics 2007-05-23 Novica Blazic , Srdjan Vukmirovic

We continue the study of isomorphisms of tensor algebras associated to a C*-correspondences in the sense of Muhly and Solel. Inspired by by recent work of Davidson, Ramsey and Shalit, we solve isomorphism problems for tensor algebras…

Operator Algebras · Mathematics 2016-08-16 Adam Dor-On

We introduce a family of reversible fragmentating-coagulating processes of particles of varying size-scaled diffusivity with strictly local interaction on the real line as mathematically rigorous description of colloidal motion of fluids.…

Probability · Mathematics 2022-09-21 Vitalii Konarovskyi , Max von Renesse

In this paper we study fundamental geometric properties of doubly warped product immersion which is an extension of warped product immersion. Moreover, we study geometric inequality for doubly warped products isometrically immersed in…

Differential Geometry · Mathematics 2014-10-09 Morteza Faghfouri , Ayyoub Majidi

In this paper, we prove that every m-th root metric with isotropic mean Berwald curvature reduces to a weakly Berwald metric. Then we show that an m-th root metric with isotropic mean Landsberg curvature is a weakly Landsberg metric. We…

Differential Geometry · Mathematics 2017-06-27 Akbar Tayebi , Ali Nankali , Esmaeil Peyghan

In this paper, we find a condition on $(\alpha, \beta)$-metrics under which the notions of isotropic S-curvature, weakly isotropic S-curvature and isotropic mean Berwald curvature are equivalent.

Differential Geometry · Mathematics 2014-12-25 Behzad Najafi , Akbar Tayebi

Let $\mathcal{C}$ be the space of smooth metrics $g$ on a given compact manifold $M^{n}$ ($n\geq3$) with constant scalar curvature and unitary volume. The goal of this paper is to study the critical point of the total scalar curvature…

Differential Geometry · Mathematics 2017-09-29 H. Baltazar

In this paper, we study the Einstein warped products and multiply warped products with a quarter-symmetric connection. We also study warped products and multiply warped products with a quarter-symmetric connection with constant scalar…

Differential Geometry · Mathematics 2014-10-02 Quan Qu , Yong Wang

We study the structure of the support of a doubling measure by analyzing its self-similarity properties, which we estimate using a variant of the $L^1$ Wasserstein distance. We show that measure satisfying certain self-similarity conditions…

Metric Geometry · Mathematics 2014-11-11 Jonas Azzam , Guy David , Tatiana Toro

We prove a new generalization of the Cheeger-Gromoll splitting theorem where we obtain a warped product splitting under the existence of a line. The curvature condition in our splitting is a curvature dimension inequality of the form…

Differential Geometry · Mathematics 2016-06-30 William Wylie

This paper deals with the applications of an optimization method on submanifolds, that is, geometric inequalities can be considered as optimization problems. In this regard, we obtain optimal Casorati inequalities and Chen-Ricci inequality…

Differential Geometry · Mathematics 2023-08-28 Aliya Naaz Siddiqui , Fatemah Mofarreh , Ali Hussain Alkhaldi , Akram Ali

To evaluate disentangled representations several metrics have been proposed. However, theoretical guarantees for conventional metrics of disentanglement are missing. Moreover, conventional metrics do not have a consistent correlation with…

Machine Learning · Computer Science 2021-03-25 Anna Sepliarskaia , Julia Kiseleva , Maarten de Rijke

We introduce a pointwise variant of the Assouad dimension for measures on metric spaces, and study its properties in relation to the global Assouad dimension. We show that, in general, the value of the pointwise Assouad dimension differs…

Classical Analysis and ODEs · Mathematics 2024-03-12 Roope Anttila

We define Discrete Quasi-Einstein metrics (DQE-metrics) as the critical points of discrete total curvature functional on triangulated 3-manifolds. We study DQE-metrics by introducing some combinatorial curvature flows. We prove that these…

Differential Geometry · Mathematics 2017-02-10 Huabin Ge , Xu Xu

We study the $(2+2)$-Einstein warped product manifolds, where the scalar curvature of the Base is a multiple of the warping function, and we called this condition (inside a warped product manifold) $f$-curvature-Base ($R_{f_B}$).The aim of…

Differential Geometry · Mathematics 2020-02-27 Alexander Pigazzini

In this paper, we generalize the dualistic structures on warped product manifolds to the dualistic structures on generalized warped product manifolds. we develop an expression of curvature for the connection of the generalized warped…

Differential Geometry · Mathematics 2015-06-30 Rafik Nasri , Djelloul Djebbouri

The object of the present paper is to study the characterization of warped product manifolds satisfying some pseudosymmetric type conditions, especially, due to projective curvature tensor. For this purpose we consider a warped product…

Differential Geometry · Mathematics 2016-12-13 Absos Ali Shaikh , Haradhan Kundu

In this work, the dual flatness, which is connected with Statistics and Information geometry, of general $(\alpha,\beta)$-metrics (a new class of Finsler metrics) is studied. A nice characterization for such metrics to be dually flat under…

Differential Geometry · Mathematics 2015-02-05 Changtao Yu

We introduce a novel approach for measuring the total curvature at every triangle of a discrete surface. This method takes advantage of the relationship between per triangle total curvature and the Dirichlet energy of the Gauss map. This…

Graphics · Computer Science 2023-10-10 Crane He Chen

In this paper, we study the generalized Douglas-Rachford algorithm and its cyclic variants which include many projection-type methods such as the classical Douglas-Rachford algorithm and the alternating projection algorithm. Specifically,…

Optimization and Control · Mathematics 2020-04-14 Minh N. Dao , Hung M. Phan