Results 11 to 20 of about 651,446 (197)

Stokes matrices for the quantum differential equations of some Fano varieties [PDF]

open access: yes, 2014
The classical Stokes matrices for the quantum differential equation of projective n-space are computed, using multisummation and the so-called monodromy identity. Thus, we recover the results of D.
B Dubrovin   +7 more
core   +2 more sources

Projective geometry for blueprints [PDF]

open access: yes, 2012
In this note, we generalize the Proj-construction from usual schemes to blue schemes. This yields the definition of projective space and projective varieties over a blueprint.
Lorscheid, Oliver, Peña, Javier López
core   +3 more sources

Galois subspaces for projective varieties [PDF]

open access: yesarXiv, 2023
Given an embedding of a projective variety into projective space, we study the structure of the space of all linear projections that, when composed with the embedding, give a Galois morphism from the variety to a projective space of the same dimension.
arxiv  

On projections to the pure spinor space [PDF]

open access: yesJournal of High Energy Physics, 2011
35+32 pages (main part+ appendix). Changes from version 2 to version 3: Reference [11] added. Equation numbers include now the section number in order to match the published version in JHEP. Changes from version 1 to version 2: Two references added about the derivation of the pure spinor string from a classical action; last equation in footnote 2 ...
Pietro Antonio Grassi   +2 more
openaire   +7 more sources

On the Relative Projective Space

open access: yes, 2017
Fil: Osorio Morales, Maria Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Investigaciones Matemáticas "Luis A. Santaló". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Matemáticas "Luis A.
Data, Matias Ignacio   +1 more
openaire   +3 more sources

Affine Spaces within Projective Spaces [PDF]

open access: yesResults in Mathematics, 1999
We endow the set of complements of a fixed subspace of a projective space with the structure of an affine space, and show that certain lines of such an affine space are affine reguli or cones over affine reguli. Moreover, we apply our concepts to the problem of describing dual spreads. We do not assume that the projective space is finite-dimensional or
Andrea Blunck, Hans Havlicek
openaire   +3 more sources

Embedding projective spaces [PDF]

open access: goldBulletin of the American Mathematical Society, 1967
Mahowald, M., Milgram, R. James
openaire   +4 more sources

Generalized projections on general Banach spaces [PDF]

open access: yesarXiv, 2022
In general Banach spaces, the metric projection map lacks the powerful properties it enjoys in Hilbert spaces. There are a few generalized projections that have been proposed in order to resolve many of the deficiencies of the metric projection. However, such notions are predominantly studied in Banach spaces with rich topological structures, such as ...
arxiv  

Geometry of Quantum Projective Spaces [PDF]

open access: yesNoncommutative Geometry and Physics 3, 2013
In recent years, several quantizations of real manifolds have been studied, in particular from the point of view of Connes' noncommutative geometry. Less is known for complex noncommutative spaces. In this paper, we review some recent results about the geometry of complex quantum projective spaces.
D'ANDREA, FRANCESCO, G. Landi
openaire   +5 more sources

Arcs in finite projective spaces [PDF]

open access: yesEMS Surveys in Mathematical Sciences, 2020
This is an expository article detailing results concerning large arcs in finite projective spaces. It is not strictly a survey but attempts to cover the most relevant results on arcs, simplifying and unifying proofs of known old and more recent theorems. The article is mostly self-contained and includes a proof of the most general form of Segre’s lemma
Ball, Simeon Michael, Lavrauw, Michel
openaire   +6 more sources

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