Results 11 to 20 of about 178,487 (106)

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

Decoding of Projective Reed-Muller Codes by Dividing a Projective Space into Affine Spaces

open access: yes, 2015
A projective Reed-Muller (PRM) code, obtained by modifying a (classical) Reed-Muller code with respect to a projective space, is a doubly extended Reed-Solomon code when the dimension of the related projective space is equal to 1.
Matsui, Hajime, Nakashima, Norihiro
core   +1 more source

The Chemical Space Project

open access: yesAccounts of Chemical Research, 2015
One of the simplest questions that can be asked about molecular diversity is how many organic molecules are possible in total? To answer this question, my research group has computationally enumerated all possible organic molecules up to a certain size to gain an unbiased insight into the entire chemical space. Our latest database, GDB-17, contains 166.
openaire   +5 more sources

Projective product spaces [PDF]

open access: yesJournal of Topology, 2010
One theorem, which originally asserted homotopy equivalence, has been improved to now assert ...
openaire   +3 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

Projections of a learning space. [PDF]

open access: yes, 2013
Any subset Q' of the domain Q of a learning space defines a projection of that learning space on Q' which is itself a learning space consistent with the original one. Moreover, such a construction defines a partition of Q having each of its classes defining a learning space also consistent with the original learning space.
openaire   +3 more sources

Orbifold quantum D-modules associated to weighted projective spaces

open access: yes, 2014
We construct in an abstract fashion the orbifold quantum cohomology (quantum orbifold cohomology) of weighted projective space, starting from the orbifold quantum differential operator.
Guest, Martin A., Sakai, Hironori
core   +1 more source

Categories of projective spaces

open access: yesJournal of Pure and Applied Algebra, 1996
AbstractStarting with an abelian category A, a natural construction produces a category PA such that, when A is an abelian category of vector spaces, PA is the corresponding category of projective spaces. The process of forming the category PA destroys abelianess, but not completely, and the precise measure of what remains of it gives the possibility ...
Marco Grandis, A. Carboni
openaire   +2 more sources

Domesticity in projective spaces [PDF]

open access: yesInnovations in Incidence Geometry: Algebraic, Topological and Combinatorial, 2011
Let J be a set of types of subspaces of a projective space. Then a collineation or a duality is called J-domestic if it maps no flag of type J to an opposite one. In this paper, we characterize symplectic polarities as the only dualities of projective spaces that map no chamber to an opposite one.
Temmermans, Beukje   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy