Results 331 to 340 of about 8,686,058 (373)

Projective spaces

Discrete Painlevé Equations, 2019
In the class of all collinearity structures a subclass of (dimension free) projective spaces, defined by means of a suitable axiom system, is singled out.
Wojciech Leónczuk   +1 more
semanticscholar   +1 more source

The Levenstein bound for packings in projective spaces

Optical Engineering + Applications, 2017
We study the problem of packing points in real or complex projective space so that the minimum distance is maximized. Existing bounds for this problem include the Welch and orthoplex bounds.
John I. Haas, Nathaniel Hammen, D. Mixon
semanticscholar   +1 more source

Tate Resolutions for Products of Projective Spaces

, 2014
We describe the Tate resolution of a coherent sheaf or complex of coherent sheaves on a product of projective spaces. Such a resolution makes explicit all the cohomology of all twists of the sheaf, including, for example, the multigraded module of ...
D. Eisenbud, D. Erman, F. Schreyer
semanticscholar   +1 more source

Pseudo-automorphisms of positive entropy on the blowups of products of projective spaces

, 2011
We use a concise method to construct pseudo-automorphisms $$f_n$$fn of the first dynamical degree $$d_1(f_n) > 1$$d1(fn)>1 on the blowups of the projective $$n$$n-space for all $$n \ge 2$$n≥2 and more generally on the blowups of products of projective ...
Fabio Perroni, De-Qi Zhang
semanticscholar   +1 more source

Projectively symmetric spaces [PDF]

open access: possibleAnnali di Matematica Pura ed Applicata, 1989
In questo lavoro l'autore estende la nozione di simmetria al caso di una varieta reale C∞ dotata di una connessione proiettiva normale, introducendo la classe degli spazi proiettivamente simmetrici. L'autore prova che ogni spazio proiettivamente simmetrico p-iperbolico e proiettivamente equivalente ad uno spazio Riemanniano simmetrico di Einstein con ...
openaire   +1 more source

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