Results 31 to 40 of about 5,232,012 (321)

Convex cocompact actions in real projective geometry [PDF]

open access: yesAnnales Scientifiques de l'Ecole Normale Supérieure, 2017
We study a notion of convex cocompactness for (not necessarily irreducible) discrete subgroups of the projective general linear group acting on real projective space, and give various characterizations.
J. Danciger   +2 more
semanticscholar   +1 more source

Distinguished curves and integrability in Riemannian, conformal, and projective geometry [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2018
We give a new characterisation of the unparametrised geodesics, or distinguished curves, for affine, pseudo-Riemannian, conformal, and projective geometry. This is a type of moving incidence relation.
A. Gover   +2 more
semanticscholar   +1 more source

Projective geometry of Sasaki–Einstein structures and their compactification [PDF]

open access: yesDissertationes Mathematicae, 2018
We show that the standard definitions of Sasaki structures have elegant and simplifying interpretations in terms of projective differential geometry. For Sasaki-Einstein structures we use projective geometry to provide a resolution of such structures ...
A. Gover, Katharina Neusser, T. Willse
semanticscholar   +1 more source

Proyeksi Geometri Fuzzy pada Ruang

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2012
Fuzzy geometry is an outgrowth of crisp geometry, which in crisp geometry elements are exist and not exist, but also while on fuzzy geometry elements are developed by thickness which is owned by each of these elements.
Muhammad Izzat Ubaidillah
doaj   +1 more source

Geometry of straight lines pencils [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2002
This paper considers a pencil of straight Unes in the Euclidean plane as well as the same pencil of straight lines in the projective plane where the projective geometry model M" is defined with its points forming the sets of (n-l) collinear points, whose
Janić Milan, Tanikić Dejan
doaj   +1 more source

C-projective geometry [PDF]

open access: yesMemoirs of the American Mathematical Society, 2015
We develop in detail the theory of c-projective geometry, a natural analogue of projective differential geometry adapted to complex manifolds. We realise it as a type of parabolic geometry and describe the associated Cartan or tractor connection.
D. Calderbank   +3 more
semanticscholar   +1 more source

One dimensional metrical geometry [PDF]

open access: yes, 2007
One dimensional metrical geometry may be developed in either an affine or projective setting over a general field using only algebraic ideas and quadratic forms.
Wildberger, N J
core   +2 more sources

Complete Caps in Affine Geometry AG(n, 3)

open access: yesMathematical Problems of Computer Science, 2022
We consider the problem of constructing complete caps in affine geometry AG(n, 3) of dimension n over the field F3 of order three. We will take the elements of F3 to be 0, 1 and 2. A cap is a set of points, no three of which are collinear.
Karen I. Karapetyan
doaj   +1 more source

Smooth projective horospherical varieties of Picard group $\mathbb{Z}^2$ [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2020
We classify all smooth projective horospherical varieties of Picard group $\mathbb{Z}^2$ and we give a first description of their geometry via the Log Minimal Model Program.
Boris Pasquier
doaj   +1 more source

EPIPOLAR GEOMETRY BETWEEN PHOTOGRAMMETRY AND COMPUTER VISION – A COMPUTATIONAL GUIDE [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Stereo image orientation is one of the major topics in computer vision, photogrammetry, and robotics. The stereo vision problem solution represents the basic element of the multi-view Structure from Motion SfM in computer vision and photogrammetry.A ...
B. Alsadik, N. A. Abdulateef
doaj   +1 more source

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