Voronoi pole
In geometry, the positive and negative Voronoi poles of a cell in a Voronoi diagram are certain vertices of the diagram. (Wikipedia).
In geometry, the positive and negative Voronoi poles of a cell in a Voronoi diagram are certain vertices of the diagram. (Wikipedia).
S.Schleimer - An introduction to veering triangulations
Singular euclidean structures on surfaces are a key tool in the study of the mapping class group, of Teichmüller space, and of kleinian three-manifolds. François Guéritaud, while studying work of Ian Agol, gave a powerful technique for turning a singular euclidean structure (on a surface)
From playlist Ecole d'été 2018 - Teichmüller dynamics, mapping class groups and applications
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Voronoi diagram, Delaunay and Alpha complexes: A Visual Intro [Ondřej Draganov]
Introductory tutorial bringing visual intuition into definitions of three basic concepts used in TDA – Voronoi diagrams, Delaunay complexes and Alpha complexes / Alpha filtration. In this video I show how to get from a two-dimensional point-cloud to each of those objects, describe several
From playlist Tutorial-a-thon 2021 Spring
Renaud COULANGEON - Lattices, Perfects lattices, Voronoi reduction theory, modular forms, ... 2
The talks of Coulangeon will introduce the notion of perfect, eutactic and extreme lattices and the Voronoi's algorithm to enumerate perfect lattices (both Eulcidean and Hermitian). The talk of Nebe will build upon these notions, introduce Boris Venkov's notion of strongly perfect lattic
From playlist École d'Été 2022 - Cohomology Geometry and Explicit Number Theory
Philippe ELBAZ - Cohomology of arithmetic groups and number theory: geometric, ... 2
In this lecture series, the first part will be dedicated to cohomology of arithmetic groups of lower ranks (e.g., Bianchi groups), their associated geometric models (mainly from hyperbolic geometry) and connexion to number theory. The second part will deal with higher rank groups, mainly
From playlist École d'Été 2022 - Cohomology Geometry and Explicit Number Theory
Renaud COULANGEON - Lattices, Perfects lattices, Voronoi reduction theory, modular forms, ... 1
Lattices, Perfects lattices, Voronoi reduction theory, modular forms, computations of isometries and automorphisms The talks of Coulangeon will introduce the notion of perfect, eutactic and extreme lattices and the Voronoi's algorithm to enumerate perfect lattices (both Eulcidean and He
From playlist École d'Été 2022 - Cohomology Geometry and Explicit Number Theory
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How to Create Mosaics from Images [Robin Belton]
In this video I describe what a Voronoi Diagram is and how to convert an image into a mosaic using Voronoi Diagrams. This tutorial was contributed as part of the WinCompTop+AATRN Tutorial-a-thon in Spring 2021: https://sites.google.com/view/aatrn-tutorial-a-thon
From playlist Tutorial-a-thon 2021 Spring
