Results 71 to 80 of about 4,910 (167)

Special Kähler geometry and holomorphic Lagrangian fibrations

Comptes Rendus. Mathématique
Given a holomorphic Lagrangian fibration of a compact hyperkähler manifold, we use the differential geometry of the special Kähler metric that exists on the base away from the discriminant locus, and show that the pullback of the tangent bundle of the ...
Li, Yang, Tosatti, Valentino
doaj   +1 more source

Flat-Parallel Minkowski Space and β-Change with α,β-Metric

Journal of Mathematics
The purpose of this paper is to examine the condition for a Finsler space with a generalized α,β-metric to be projectively flat. In addition, we establish that the Finsler space with generalized α,β-metric is a flat-parallel Minkowski space and derive ...
Brijesh Kumar Tripathi, Sadika Khan
doaj   +1 more source

Integrating the Projective Transform with Particle Filtering for Visual Tracking

EURASIP Journal on Image and Video Processing, 2011
This paper presents the projective particle filter, a Bayesian filtering technique integrating the projective transform, which describes the distortion of vehicle trajectories on the camera plane.
Beghdadi A, Bouttefroy PLM, Bouzerdoum A, Phung SL   +3 more
doaj  

Projective crystal symmetry and topological phases

Materials Today Quantum
Quantum states naturally represent symmetry groups, though often in a projective sense. Intriguingly, the projective nature of crystalline symmetries has remained underexplored until very recently.
Chen Zhang, Shengyuan A. Yang, Y.X. Zhao
doaj   +1 more source

Geometric structures for maximal representations and pencils

Forum of Mathematics, Sigma
We study fibrations of the projective model for the symmetric space associated with $\operatorname {\mathrm {SL}}(2n,\mathbb {R})$ by codimension $2$ projective subspaces, or pencils of quadrics.
Colin Davalo
doaj   +1 more source

Projective vector fields on exponential -metrics

Mathematics Open
This paper is devoted to the study of the projective algebra of a certain class of [Formula: see text]-metrics. The projective algebra of a Finsler space is a finite-dimensional Lie algebra with respect to the usual Lie bracket.
Seyedeh Yasaman Sadati, Mehdi Rafie-Rad
doaj   +1 more source

On the Algebraic Geometry of Multiview

Foundations
We study the multiviews of algebraic space curves X from n pin-hole cameras of a real or complex projective space. We assume the pin-hole centers to be known, i.e., we do not reconstruct them. Our tools are algebro-geometric.
Edoardo Ballico
doaj   +1 more source

A projective approach to a language of landscape design

Landscape Review, 1997
Building on the work of Kelly (1955) in personal construct psychology, and Peled (1976, I990) in ecoanalysis, this paper develops projective techniques-which use concepts of personal and phenomenological space-as a means for articulating approaches to ...
Catherine Ward Thompson
doaj  

A holographic connection between strings and causal diamonds

Journal of High Energy Physics
In this paper we explore ideas of holography and strings living in the d + 1 dimensional Anti-de Sitter space AdS d+1 in a unified framework borrowed from twistor theory. In our treatise of correspondences between geometric structures of the bulk AdS d+1,
Bercel Boldis, Péter Lévay
doaj   +1 more source

The projective wave theory of consciousness. [PDF]

Front Psychol
Worden R.
europepmc   +1 more source