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Related papers: A Generalization of Desargues' Involution Theorem

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Haga's fold in paper folding is generalized. Recent generalization of Haga's theorems and problems in Wasan geometry involving Haga's fold are also generalized.

History and Overview · Mathematics 2017-12-27 Hiroshi Okumura

We introduce a complex q-Fourier transform as a generalization of the (real) one analyzed in [Milan J. Math. {\bf 76} (2008) 307]. By recourse to tempered ultradistributions we show that this complex plane-generalization overcomes all…

Mathematical Physics · Physics 2015-06-03 A. Plastino , M. C. Rocca

Three generalizations of the well-known Ceva's Theorem are given in this paper and some applications.

General Mathematics · Mathematics 2007-05-23 Florentin Smarandache

We prove two conjectures posed in 2016 concerning a generalization of the Sawayama-Th\'ebault Theorem and the Sawayama Lemma. We show that this generalized statement can be viewed in Laguerre geometry, which provides a natural framework for…

Metric Geometry · Mathematics 2026-03-20 Miłosz Płatek

For a certain class of configurations of points in space, Eves' Theorem gives a ratio of products of distances that is invariant under projective transformations, generalizing the cross-ratio for four points on a line. We give a…

Metric Geometry · Mathematics 2012-04-10 Adam Coffman

The Gale transform, an involution on sets of points in projective space, appears in a multitude of guises, in subjects as diverse as optimization, coding theory, theta-functions, and recently in our proof that certain general sets of points…

Algebraic Geometry · Mathematics 2007-05-23 David Eisenbud , Sorin Popescu

In this paper we study the degeneration of convex real projective structures on bordered surfaces.

Geometric Topology · Mathematics 2018-12-13 Inkang Kim

We prove a generalization of a result of Peres and Schlag on the dimensions of certain exceptional sets of projections and then apply it to a geometric problem.

Classical Analysis and ODEs · Mathematics 2011-07-26 Daniel M. Oberlin

In this paper, we give a geometrization and a generalization of a lemma of differential Galois theory. This geometrization, in addition of giving a nice insight on this result, offers us the occasion to investigate several points of…

Algebraic Geometry · Mathematics 2010-12-03 Colas Bardavid

We prove a generalization of Istvan F\'ary's celebrated theorem to higher dimension.

Geometric Topology · Mathematics 2025-03-13 Karim Adiprasito , Zuzana Patáková

This is a survey on recent results on the Loewner theory in one and several complex manifolds

Complex Variables · Mathematics 2011-12-14 Filippo Bracci

We introduce a theoretical framework for differentiable surface evolution that allows discrete topology changes through the use of topological derivatives for variational optimization of image functionals. While prior methods for inverse…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Ishit Mehta , Manmohan Chandraker , Ravi Ramamoorthi

A slight modification to one of Tarski's axioms of plane Euclidean geometry is proposed. This modification allows another of the axioms to be omitted from the set of axioms and proven as a theorem. This change to the system of axioms…

Logic · Mathematics 2013-06-04 Timothy Makarios

We prove a uniformization theorem in complex algebraic geometry.

Algebraic Geometry · Mathematics 2010-08-11 Robert Treger

In this paper we give a generalization of a result of Wei.

Combinatorics · Mathematics 2008-02-19 Nedyalko Nenov

We show in this article how Girard Desargues, in his well known text on conics, the \textit{Brouillon Project,} manages to use Menelaos' theorem with some awesome virtuosity. To this end, we propose a detailed analysis of his…

History and Overview · Mathematics 2018-03-06 Jean-Yves Briend , Marie Anglade

An orthogonal involution on a central simple algebra becoming isotropic over any splitting field of the algebra, becomes isotropic over a finite odd degree extension of the base field (provided that the characteristic of the base field is…

Algebraic Geometry · Mathematics 2011-03-15 Nikita A. Karpenko

We introduce a notion of probabilistic convexity and generalize some classical globalization theorems in Alexandrov geometry. A weighted Alexandrov's lemma is developed as a basic tool.

Differential Geometry · Mathematics 2015-06-24 Nan Li

In this article we use the Desargues' theorem and its reciprocal to solve two problems.

General Mathematics · Mathematics 2011-01-13 Florentin Smarandache , Ion Patrascu

In this lecture, we review some of the concepts of generalized geometry, as introduced by Hitchin and developed in the speaker's thesis. We also prove a Hodge decomposition for the twisted cohomology of a compact generalized K\"ahler…

Differential Geometry · Mathematics 2007-05-23 Marco Gualtieri