Exploració per tema "Classificació AMS::53 Differential geometry"
Ara es mostren els items 1-17 de 17
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A contact geometry framework for field theories with dissipation
(2020-03-01)
Article
Accés obertWe develop a new geometric framework suitable for dealing with Hamiltonian field theories with dissipation. To this end we define the notions of k-contact structure and k-contact Hamiltonian system. This is a generalization ... -
Bohr–Sommerfeld quantization of b-symplectic toric manifolds
(2023)
Article
Accés obertWe define the Bohr-Sommerfeld quantization via T -modules for a b-symplectic toric manifold and show that it coincides with the formal geometric quantization of [Victor W. Guillemin, Eva Miranda, and Jonathan Weitsman. On ... -
Calibrations and null-Lagrangians for nonlocal perimeters and an application to the viscosity theory
(2020-02-04)
Article
Accés restringit per acord de confidencialitatFor nonnegative even kernels K, we consider the K-nonlocal perimeter functional acting on sets. Assuming the existence of a foliation of space made of solutions of the associated K-nonlocal mean curvature equation in an ... -
Constructing Turing complete Euler flows in dimension 3
(2021-05-11)
Article
Accés obertCan every physical system simulate any Turing machine? This is a classical problem which is intimately connected with the undecidability of certain physical phenomena. Concerning fluid flows, Moore asked in [15] if ... -
Critically Twisted Kinematic Chains
(Universitat Politècnica de Catalunya, 2020-05-22)
Treball Final de Grau
Accés obert
Realitzat a/amb: Okinawa Kagaku Gijutsu Daigakuin DaigakuEls caleidocicles de Möbius són una família nova de mecanismes amb un grau de llibertat. Presentem cadenes quinemàtiques noves amb propietats similars i busquem casos especials. Donem un argument de plausibilitat per la ... -
Existence and symmetry of periodic nonlocal-CMC surfaces via variational methods
(De Gruyter, 2023-10-05)
Article
Accés restringit per política de l'editorialThis paper provides the first variational proof of the existence of periodic nonlocal-CMC surfaces. These are nonlocal analogues of the classical Delaunay cylinders. More precisely, we show the existence of a set in Rn ... -
Gauss i els polígons
(2006-02-15)
Audiovisual
Accés obertPer copsar el llegat de Gauss, cal tenir en compte què va fer, naturalment, però també què va deixar als altres per fer. En aquest article expositiu, mostrem aquest fet en el cas de la constructibilitat amb regle i ... -
Geometria de superficies : una aproximació a la figura de Gauss
(2005-09-14)
Audiovisual
Accés obert"Gauss va publicar l’any 1827 Disquisitiones generales circa superficies curvas, obra que ha resultat fonamental en el desenvolupament de la geometria diferencial a partir del segle XIX. La documentació de la qual es disposa ... -
Geometria de superficies: una aproximació a la figura de Gausss
(2014-01-31)
Altres
Accés obertGauss va publicar l’any 1827 Disquisitiones generales circa superficies curvas, obra que ha resultat fonamental en el desenvolupament de la geometria diferencial a partir del segle XIX. La documentació de la qual es disposa ... -
Geometric Quantization of real polarizations via sheaves
(2013-01)
Report de recerca
Accés obertIn this article we develop tools to compute the Geometric Quantization of a symplectic manifold with respect to a regular Lagrangian foliation via sheaf cohomology. The starting point is the definition of representation ... -
Geometría de Lorentz : de lenguaje a herramienta básica en relatividad general
(2005-02-09)
Audiovisual
Accés obert"Desde que Einstein extendió el espacio-tiempo de Lorentz-Minkowski a una variedad de Lorentz curvada para modelar campos gravitatorios no nulos, la Geometría de Lorentz, en su aspecto local, ha sido la herramienta fundamental ... -
Hyper-Kähler geometry
(2017-11-29)
Audiovisual
Accés obertKähler geometry is a natural extension of complex projective geometry where the tools of Hodge theory are still available and allow to study the link between topology and complex geometry. The simplest examples of projective ... -
La conjetura del rango toral
(2006-05-11)
Audiovisual
Accés obertLa conjetura del rango toral predice que si tenemos dos variedades compactas y una aplicación entre ellas cuyas fibras son todas toros r-dimensionales, entonces la dimensión de la cohomología de la variedad inicial ha de ... -
Multisymplectic formalism for cubic horndeski theories
(2023-07-10)
Article
Accés restringit per política de l'editorialWe present the covariant multisymplectic formalism for the so-called cubic Horndeski theories and discuss the geometrical and physical interpretation of the constraints that arise in the uni¿ed Lagrangian-Hamiltonian ... -
Reduction theory for singular symplectic manifolds and singular forms on moduli spaces
(2022-05-25)
Report de recerca
Accés obertThe investigation of symmetries of b-symplectic manifolds and folded-symplectic manifolds is well-understood when the group under consideration is a torus (see, for instance, [GMPS, GLPR,GMW18a]forb-symplecticmanifoldsand ... -
Reduction theory for singular symplectic manifolds and singular forms on moduli spaces
(2023-09-01)
Article
Accés obertThe investigation of symmetries of b-symplectic manifolds and folded-symplectic manifolds is well-understood when the group under consideration is a torus (see, for instance, [25,21, 28] for b-symplectic manifolds and ... -
Some ODE solutions for the fractional Yamabe problem
(Universitat Politècnica de Catalunya, 2013-11)
Projecte Final de Màster Oficial
Accés obertWe construct some ODE solutins for the fractional Yamabe problem in conformal geometry. The fractional curvature, which is a generalization of the usual scalar curvature, is defined from the conformal fractional Laplacian, ...
