Results 11 to 20 of about 623,025 (279)
Integral geometry on discrete matrices
Moroccan Journal of Pure and Applied Analysis, 2021 In this note, we study the Radon transform and its dual on the discrete matrices by defining hyperplanes as being infinite sets of solutions of linear Diophantine equations. We then give an inversion formula and a support theorem.
Attioui Abdelbaki
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STROPHOIDS, A FAMILY OF CUBIC CURVES WITH REMARKABLE PROPERTIES
Journal of Industrial Design and Engineering Graphics, 2015 Strophoids are circular cubic curves which have a node with orthogonal tangents. These rational curves are characterized by a series or properties, and they show up as locus of points at various geometric problems in the Euclidean plane: Strophoids are ...
Hellmuth Stachel
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Geometry of discrete copulas [PDF]
Journal of Multivariate Analysis, 2019 Multivariate distributions are fundamental to modeling. Discrete copulas can be used to construct diverse multivariate joint distributions over random variables from estimated univariate marginals. The space of discrete copulas admits a representation as a convex polytope which can be exploited in entropy-copula methods relevant to hydrology and ...
Perrone, Elisa +3 more
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Discrete Differential Geometry [PDF]
Oberwolfach Reports, 2015 This is the collection of extended abstracts for the 26 lectures and the open problem session at the fourth Oberwolfach workshop on Discrete Differential Geometry.
Alexander I. Bobenko +2 more
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On Weingarten transformations of hyperbolic nets [PDF]
, 2013 Weingarten transformations which, by definition, preserve the asymptotic lines on smooth surfaces have been studied extensively in classical differential geometry and also play an important role in connection with the modern geometric theory of ...
Emanuel Huhnen-venedey +2 more
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Cell-paths in mono- and bichromatic line arrangements in the plane [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 Combinatorics
Oswin Aichholzer +10 more
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, 2016 In this paper we describe the foundation of a new kind of discrete geometry and calculus called Script Geometry. It allows to work with more general meshes than classic simplicial complexes.
Cerejeiras, Paula +3 more
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The Complement of Binary Klein Quadric as a Combinatorial Grassmannian
Mathematics, 2015 Given a hyperbolic quadric of PG(5, 2), there are 28 points off this quadric and 56 lines skew to it. It is shown that the (286; 563)-configuration formed by these points and lines is isomorphic to the combinatorial Grassmannian of type G2(8). It is also
Metod Saniga
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Information geometry, dynamics and discrete quantum mechanics [PDF]
, 2013 We consider a system with a discrete configuration space. We show that the geometrical structures associated with such a system provide the tools necessary for a reconstruction of discrete quantum mechanics once dynamics is brought into the picture.
Hall, Michael J. W., Reginatto, Marcel
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Thinnest Covering of the Euclidean Plane with Incongruent Circles
Analysis and Geometry in Metric Spaces, 2017 In 1958 L. Fejes Tóth and J. Molnar proposed a conjecture about a lower bound for the thinnest covering of the plane by circles with arbitrary radii from a given interval of the reals.
Dorninger Dietmar
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