Results 1 to 10 of about 1,987 (220)

Analytic embedding of pseudo-Helmholtz geometry [PDF]

open access: yes, 2021
For modern geometry, the study of maximal mobility geometries is of great importance. Some of these geometries are well studied (Euclidean, pseudo-Euclidean, symplectic, spherical, Lobachevsky, etc.), and others are poorly understood (Helmholtz, pseudo ...
Kyrov, Vladimir A.
core   +1 more source

The Hyperbolic Ptolemy’s Theorem in the Poincaré Ball Model of Analytic Hyperbolic Geometry

open access: yes, 2023
Ptolemy’s theorem in Euclidean geometry, named after the Greek astronomer and mathematician Claudius Ptolemy, is well known. We translate Ptolemy’s theorem from analytic Euclidean geometry into the Poincaré ball model of analytic ...
Abraham A. Ungar
core   +1 more source

Menelaus's theorem for hyperbolic quadrilaterals in the Einstein relativistic velocity model of hyperbolic geometry [PDF]

open access: yes, 2010
Hyperbolic Geometry appeared in the first half of the 19th century as an attempt to understand Euclid's axiomatic basis of Geometry.
Barbu, Catalin
core   +1 more source

Ptolemy’s Theorem in the Relativistic Model of Analytic Hyperbolic Geometry

open access: yes, 2023
Ptolemy’s Theorem in Euclidean geometry, named after the Greek astronomer and mathematician Ptolemy, is well-known. By means of the relativistic model of hyperbolic geometry, we translate Ptolemy’s Theorem from Euclidean geometry into the ...
Abraham A. Ungar
core   +1 more source

Euclidean algorithm and polynomial equations after Labatie [PDF]

open access: yes, 2013
We recall Labatie's effective method of solving polynomial equations with two unknowns by using the Euclidean ...
Płoski, Arkadiusz   +1 more
core   +1 more source

Designing digital technologies and learning activities for different geometries

open access: yes, 2009
This chapter focuses on digital technologies and geometry education, a combination of topics that provides a suitable avenue for analysing closely the issues and challenges involved in designing and utilizing digital technologies for learning mathematics.
Ian Stevenson   +5 more
core   +1 more source

The analytical method for embedding multidimensional pseudo-Euclidean geometries

open access: yesSibirskie Elektronnye Matematicheskie Izvestiya, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

The geometry of visual experience [PDF]

open access: yes, 2007
In this thesis I examine what the geometry of visual experience is. This is a question which to some has had an a priori answer, and to some its relevance to philosophy has been considered questionable.
Meadows, Phillip
core  

Cohomology of D-complex manifolds

open access: yes, 2012
In order to look for a well-behaved counterpart to Dolbeault cohomology in D-complex geometry, we study the de Rham cohomology of an almost D-complex manifold and its subgroups made up of the classes admitting invariant, respectively anti-invariant ...
Daniele Angella   +4 more
core   +1 more source

Insertion and deletion tolerance of point processes [PDF]

open access: yes, 2013
We develop a theory of insertion and deletion tolerance for point processes. A process is insertion-tolerant if adding a suitably chosen random point results in a point process that is absolutely continuous in law with respect to the original process ...
Holroyd, Alexander E.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy