El llegat històric de l'Orfeó Català (1891-1936)

La fundación de l'Orfeó Català en 1891 supone una nueva etapa de la música coral de Cataluña, que había contado con un ilustre precedente en el movimiento regeneracionista de J.A. Clavé. Sus fundadores, Lluís Millet y Amadeu Vives, quisieron crear un instrumento idóneo para interpretar el nuevo repertorio autóctono, también abierto a la música universal. Fundaron la legendaria Revista Musical Catalana (1904-1936) y erigieron el Palau de la Música Catalana (1908), que se convirtió en el símbolo musical de la ciudad y del país; crearon los certámenes de composición (Festa de la Música Catalana), apoyaron la investigación (Obra del Cançoner Popular de Catalunya) y lideraron el movimiento coral a través de la Germanor d'Orfeons de Catalunya (F.B.B.)La fondation de l'Orfeó Català en 1891 signifie une nouvelle étape pour la musique chorale de la Catalogne qui compte un illustre précédent dans le mouvement régénérateur de J.A. Clavé. Ses fondateurs, Lluís Millet et Amadeu Vives, voulaient créer un instrument idoine pouvant interpréter le nouveau répertoire autochtone qui s'ouvrirait aussi à la musique universelle. Ils fondent la légendaire Revista Musical Catalana (1904-1936) et bâtissent le Palau de la Música Catalana (1908) qui devient le symbole musical de la ville et du pays. Ils créent les concours de composition (Festa de la Música Catalana), appuient la recherche (Obra del Cançoner Popular de Catalunya), et dirigent aussi le mouvement choral à travers la Germanor d'Orfeons de Catalunya (F.B.B.)The founding of the l'Orfeó Català in 1891 marked a new era of choral music in Catalonia, which had an illustrious precedent in the regeneracionista movement of J. A. Clavé. Its founders, Lluís Millet and Amadeu Vives, intended to create an appropriate instrument for performing the new repertoire of Catalan music, while at the same time remaining open to universal music. They founded the legendary Revista Musical Catalana (1904- 1936) and built the Palau de la Música Catalana (1908), which became a symbol of music in the city and the country. They also established events for composers (Festa de la Música Catalana), backed research (Obra del Cançoner Popular de Catalunya) and headed the choral movement through the Germanor d'Orfeons de Catalunya (F.B.B.).Die Gründung von l'Orfeó Català im Jahre 1891 stellt einen neuen Zeitabschnitt der Chormusik Kataloniens dar, die mit einem bekannten Präzedenzfall in der Bewegung zur Regenerierung von J.A. Clavé gerechnet hatte. Seine Gründer, Lluís Millet und Amadeu Vives, wollten ein ideales Instrument kreieren, um das neue einheimische Repertoire zu interpretieren und auch für die universelle Musik offen ist. Sie gründeten die legendäre «Revista Musical Catalana» (katalanische Musikzeitschrift) (1904-1936) und erbauten den Musikpalast von Katalonien (1908), der zum musikalischen Symbol der Stadt und des Landes wurde. Weiterhin schufen sie die Kompositionswettbewerbe (Festa de la Música Catalana), unterstützten die Forschung (Obra del Cançoner Popular de Catalunya) und führten die Chorbewegung über Germanor d'Orfeons de Catalunya an (F.B.B.

Rate of Convergence of Space Time Approximations for stochastic evolution equations

Stochastic evolution equations in Banach spaces with unbounded nonlinear drift and diffusion operators driven by a finite dimensional Brownian motion are considered. Under some regularity condition assumed for the solution, the rate of convergence of various numerical approximations are estimated under strong monotonicity and Lipschitz conditions. The abstract setting involves general consistency conditions and is then applied to a class of quasilinear stochastic PDEs of parabolic type.Comment: 33 page

Olympic Villages after the Games

Article analysing the use of Olympic villages once the Games are finished. This article was published in the book entitled 'Olympic Villages: a hundred years of urban planning and shared experiences' compiling the papers given at the 1997 International Symposium on International Chair in Olympism (IOC-UAB).Article que analitza l'ús de les viles olímpiques un cop finalitzats els Jocs Olímpics. Aquest text es va publicar en el llibre "Olympic Villages: a hundred years of urban planning and shared experiences" que recull les ponències presentades en el simposi internacional sobre viles olímpiques de la Càtedra Internacional d'Olimpisme (CIO-UAB) l'any 1997.Artículo que analiza el uso de las villas olímpicas una vez finalizados los Juegos. Este texto fue publicado en el libro "Olympic Villages: a hundred years of urban planning and shared experiences" que recoge las ponencias presentadas en el simposio internacional sobre villas olímpicas de Cátedra Internacional de Olimpismo (CIO-UAB) el año 1997

Peierls-like transition induced by frustration in a two-dimensional antiferromagnet

We show that the introduction of frustration into the spin-1/2 two-dimensional (2D) antiferromagnetic Heisenberg model on a square lattice via a next-nearest neighbor exchange interaction can lead to a Peierls-like transition, from a tetragonal to an orthorhombic phase, when the spins are coupled to adiabatic phonons. The two different orthorhombic ground states define an Ising order parameter, which is expected to lead to a finite temperature transition. Implications for ${\rm Li_2VOSiO_4}$, the first realization of that model, will be discussed.Comment: 4 pages, to be published on Physical Review Letter

Exchange interactions and magnetic properties of the layered vanadates CaV2O5, MgV2O5, CaV3O7 and CaV4O9

We have performed ab-initio calculations of exchange couplings in the layered vanadates CaV2O5, MgV2O5, CaV3O7 and CaV4O9. The uniform susceptibility of the Heisenberg model with these exchange couplings is then calculated by quantum Monte Carlo method; it agrees well with the experimental measurements. Based on our results we naturally explain the unusual magnetic properties of these materials, especially the huge difference in spin gap between CaV2O5 and MgV2O5, the unusual long range order in CaV3O7 and the "plaquette resonating valence bond (RVB)" spin gap in CaV4O9