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Related papers: Extending a metric on a simplicial complex

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It is proved that the volume of spherical or hyperbolic simplices, when considered as a function of the dihedral angles, can be extended continuously to degenerated simplices.

Geometric Topology · Mathematics 2007-05-23 Feng Luo

In the paper we consider an extension of Mobius-Pompeiu theorem of the elementary geometry over metric spaces. We specially take into consideration Ptolemaic metric spaces.

Metric Geometry · Mathematics 2007-05-23 Branko J. Malesevic

We consider extending the visibility polygon of a given point $q$, inside a simple polygon $P$ by converting some edges of $P$ to mirrors. We will show that several variations of the problem of finding mirror-edges to add precisely $k$…

Computational Complexity · Computer Science 2018-11-20 Arash Vaezi , Mohammad Ghodsi

We define vertex cover algebras for weighted simplicial multicomplexes and prove basics properties of them. Also, we describe these algebras for multicomplexes which have only one maximal facet and we prove that they are finitely generated.

Commutative Algebra · Mathematics 2016-03-29 Mircea Cimpoeas

We prove a structure theorem for Lie n-algebras possessing an invariant inner product. We define the notion of a double extension of a metric Lie n-algebra by another Lie n-algebra and prove that all metric Lie n-algebras are obtained from…

Representation Theory · Mathematics 2008-06-24 José Figueroa-O'Farrill

We develop a theory of limits for sequences of dense abstract simplicial complexes, where a sequence is considered convergent if its homomorphism densities converge. The limiting objects are represented by stacks of measurable [0,1]-valued…

Combinatorics · Mathematics 2022-07-19 T. Mitchell Roddenberry , Santiago Segarra

The problem of Maxflow is a widely developed subject in modern mathematics. Efficient algorithms exist to solve this problem, that is why a good generalization may permit these algorithms to be understood as a particular instance of…

Combinatorics · Mathematics 2012-12-07 Fabian Latorre

In this paper, for a given compact 3-manifold with an initial Riemannian metric and a symmetric tensor, we establish the short-time existence and uniqueness theorem for extension of cross curvature flow. We give an example of this flow on…

General Mathematics · Mathematics 2021-05-26 Shahroud Azami

In some scientific fields, a scaling is able to modify the topology of an observed object. Our goal in the present work is to introduce a new formalism adapted to the mathematical representation of this kind of phenomenon. To this end, we…

Geometric Topology · Mathematics 2008-12-11 Guy Wallet

We prove a general extension theorem for holomorphic line bundles on reduced complex spaces, equipped with singular hermitian metrics, whose curvature currents can be extended as positive, closed currents. The result has applications to…

Complex Variables · Mathematics 2017-03-31 Georg Schumacher

In graph theory there are intimate connections between the expansion properties of a graph and the spectrum of its Laplacian. In this paper we define a notion of combinatorial expansion for simplicial complexes of general dimension, and…

Combinatorics · Mathematics 2016-07-12 Ori Parzanchevski , Ron Rosenthal , Ran J. Tessler

We propose a solution to the problem of estimating a Riemannian metric associated with a given differentiable manifold. The metric learning problem is based on minimizing the relative volume of a given set of points. We derive the details…

Machine Learning · Computer Science 2012-12-12 Guy Lebanon

We extend the Law of Sines to simplices in Euclidean spaces of any number of dimensions.

General Mathematics · Mathematics 2007-05-23 Igor Rivin

We introduce a new `geometric realization' of an (abstract) simplicial complex, inspired by probability theory. This space (and its completion) is a metric space, which has the right (weak) homotopy type, and which can be compared with the…

Algebraic Topology · Mathematics 2020-09-29 Ivan Marin

An attempt is made to extend some of the basic paradigms of dynamics, from the viewpoint of (continuous) flows, to non-metric manifolds.

Dynamical Systems · Mathematics 2011-03-01 Alexandre Gabard , David Gauld

We prove that a meromorphic map defined on the complement of a compact subset of a three-dimensional Stein manifold M and with values in a compact complex three-fold X extends to the complement of a finite set of points. If X is simply…

Complex Variables · Mathematics 2007-05-23 Sergei Ivashkovich , Bernard Shiffman

In this article, we introduce the concept of lexicographic metric space and, after discussing some basic properties of these metric spaces, such as completeness, boundedness, compactness and separability, we obtain a formula for the metric…

Metric Geometry · Mathematics 2019-11-13 Juan Alberto Rodriguez-Velazquez

Some concepts, such as non-compactness measure and condensing operators, defined on metric spaces are extended to uniform spaces. Such extensions allow us to locate, in the context of uniform spaces, some classical results existing in…

General Topology · Mathematics 2015-11-25 Raúl Fierro

There is constructed and considered the extension of classical Diriclet operator corresponding to uniformly log-concave measure in the space of symmetric differential forms. Sufficient conditions for its essential self-adjointness in…

funct-an · Mathematics 2008-02-03 A. G. Us

We prove a generalization of the Expander Mixing Lemma for arbitrary (finite) simplicial complexes. The original lemma states that concentration of the Laplace spectrum of a graph implies combinatorial expansion (which is also referred to…

Combinatorics · Mathematics 2018-04-11 Ori Parzanchevski