Results 1 to 10 of about 117,561 (253)

Differential geometry of Hilbert schemes of curves in a projective space [PDF]

open access: goldComplex Manifolds, 2019
We describe the natural geometry of Hilbert schemes of curves in ℙ3and, in some cases, in ℙn, n ≥ 4.
Bielawski Roger, Peternell Carolin
doaj   +5 more sources

Benenti Tensors: A useful tool in Projective Differential Geometry [PDF]

open access: goldComplex Manifolds, 2018
Two metrics are said to be projectively equivalent if they share the same geodesics (viewed as unparametrized curves). The degree of mobility of a metric g is the dimension of the space of the metrics projectively equivalent to g. For any pair of metrics
Manno Gianni, Vollmer Andreas
doaj   +3 more sources

Surface theory in discrete projective differential geometry. I. A canonical frame and an integrable discrete Demoulin system [PDF]

open access: bronzeProceedings of the Royal Society A, 2018
We present the first steps of a procedure which discretizes surface theory in classical projective differential geometry in such a manner that underlying integrable structure is preserved.
W. K. Schief, A. Szereszewski
openalex   +3 more sources

Metrics in Projective Differential Geometry: The Geometry of Solutions to the Metrizability Equation [PDF]

open access: greenJournal of Geometric Analysis, 2018
Pseudo-Riemannian metrics with Levi-Civita connection in the projective class of a given torsion-free affine connection are equivalent to the maximal rank solutions of a certain overdetermined projectively invariant differential equation often called the
Keegan J. Flood, A. Rod Gover
semanticscholar   +3 more sources

INTEGRABLE SYSTEMS IN PROJECTIVE DIFFERENTIAL GEOMETRY [PDF]

open access: bronze, 2000
Some of the most important classes of surfaces in projective 3-space are reviewed: these are isothermally asymptotic surfaces, projectively applicable surfaces, surfaces of Jonas, projectively minimal surfaces, etc.
E. V. Ferapontov
openalex   +3 more sources

Metric connections in projective differential geometry [PDF]

open access: green, 2008
We search for Riemannian metrics whose Levi-Civita connection belongs to a given projective class. Following Sinjukov and Mikes, we show that such metrics correspond precisely to suitably positive solutions of a certain projectively invariant finite-type
Michael Eastwood, Vladimir S. Matveev
openalex   +3 more sources

Walls and asymptotics for Bridgeland stability conditions on 3-folds [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2022
We consider Bridgeland stability conditions for three-folds conjectured by Bayer-Macr\`i-Toda in the case of Picard rank one. We study the differential geometry of numerical walls, characterizing when they are bounded, discussing possible intersections ...
Marcos Jardim, Antony Maciocia
doaj   +1 more source

Geometry of two-parametric family of linear line complexes

open access: yesLietuvos Matematikos Rinkinys, 2005
In this article differential geometry of two-parametric family of linear line complexes in the three-dimensional projective space is considered.
Kazimieras Navickis
doaj   +3 more sources

Terracini Loci: Dimension and Description of Its Components

open access: yesMathematics, 2023
We study the Terracini loci of an irreducible variety X embedded in a projective space: non-emptiness, dimensions and the geometry of their maximal dimension’s irreducible components.
Edoardo Ballico
doaj   +1 more source

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