Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Javier López Peña"'
Publikováno v:
European Journal of Operational Research
The paper presents plus–minus ratings for use in association football (soccer). We first describe the general plus–minus methodology as used in basketball and ice-hockey and then adapt it for use in soccer. The usual goal-differential plus–minu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f8e251caafcc0ba506559a6653cbee9
http://livrepository.liverpool.ac.uk/3063562/1/paper.pdf
http://livrepository.liverpool.ac.uk/3063562/1/paper.pdf
Autor:
Javier López Peña, Oliver Lorscheid
Publikováno v:
Mathematische Zeitschrift. 267:605-643
This paper invents the notion of torified varieties: A torification of a scheme is a decomposition of the scheme into split tori. A torified variety is a reduced scheme of finite type over \({\mathbb Z}\) that admits a torification. Toric varieties,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dea75bb575e0062e2fd50ef285f574e
https://doi.org/10.1007/s00209-009-0638-0
https://doi.org/10.1007/s00209-009-0638-0
Publikováno v:
Journal of the London Mathematical Society
We introduce the notion of quantum duplicates of an (associative, unital) algebra, motivated by the problem of constructing toy-models for quantizations of certain configuration spaces in quantum mechanics. The proposed (algebraic) model relies on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b60538d7ba618a000e25cbf9e0dfec8
https://doi.org/10.1112/jlms/jdp055
https://doi.org/10.1112/jlms/jdp055
Autor:
Javier López Peña, Gabriel Navarro
Publikováno v:
K-Theory. 38:223-234
We give an explicit description of the set of all factorization structures, or twisting maps, existing between the algebras k^2 and k^2, and classify the resulting algebras up to isomorphism. In the process we relate several different approaches form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6df72aa8177c3cf7613b9e61301ab94
https://doi.org/10.1007/s10977-007-9017-y
https://doi.org/10.1007/s10977-007-9017-y
Autor:
Oliver Lorscheid, Javier López Peña
Publikováno v:
Comptes Rendus Mathématique. Académie des Sciences. Paris
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. In particular, it is possible to descend closed subvarieties of a projecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a1cc95c584c1cf815a868fb643531ee
http://arxiv.org/abs/1203.1665
http://arxiv.org/abs/1203.1665
Autor:
Javier López Peña
Publikováno v:
International Mathematics Research Notices.
Motivated by some results in classical differential geometry, we give a constructive procedure for building up a connection over a (twisted) tensor product of two algebras, starting from connections defined on the factors. The curvature for the produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46436d74d38a17c5f9fc35ef720b4819
https://doi.org/10.1093/imrn/rnn005
https://doi.org/10.1093/imrn/rnn005
Let $R$ be a semisimple ring. A pair $(A,C)$ is called almost-Koszul if $A$ is a connected graded $R$-ring and $C$ is a compatible connected graded $R$-coring. To an almost-Koszul pair one associates three chain complexes and three cochain complexes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77f496d5f3359c1a325a35be355ca528
Publikováno v:
Advances in mathematics
We introduce the concept of pseudotwistor (with particular cases called twistor and braided twistor) for an algebra $(A, \mu, u)$ in a monoidal category, as a morphism $T:A\otimes A\to A\otimes A$ satisfying a list of axioms ensuring that $(A, \mu \c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b7bb1148a87cc3a0819aae721e04624
https://hdl.handle.net/10067/1031100151162165141
https://hdl.handle.net/10067/1031100151162165141