4,391 research outputs found
The stepwise path integral of the relativistic point particle
In this paper we present a stepwise construction of the path integral over
relativistic orbits in Euclidean spacetime. It is shown that the apparent
problems of this path integral, like the breakdown of the naive
Chapman-Kolmogorov relation, can be solved by a careful analysis of the
overcounting associated with local and global symmetries. Based on this, the
direct calculation of the quantum propagator of the relativistic point particle
in the path integral formulation results from a simple and purely geometric
construction.Comment: 10 pages, 5 figure
Ceramic in the graphic and pictorical works of Murillo
Con esta breve comunicación pretendemos divulgar el gran número de obras
de Bartolomé Esteban Murillo (1617/1682) en las que el artista representa objetos
cerámicos. Incluimos un primer apartado en el que analizamos la terminología empleada
en nuestro texto. En un segundo epígrafe examinaremos todas aquellas obras murillescas
en las aparezcan objetos cerámicos.Through this written communication we pretend to offer an overview of the vast
work of Bartolomé Esteban Murillo (1617/1682), concretely those where the artist
represents ceramic objects. We analyze the terminology used in our text in a first section.
In the second one we examine those Murillo's works where the artist shows ceramic
objects
Domingo Martínez: a new addition to his catalogue. Precisions on its iconography
En los últimos años están apareciendo en el mercado de arte una serie de obras que tras ser expoliadas de su localización original pasaron a manos privadas. En este artículo damos a conocer
una pintura firmada por el artista sevillano Domingo Martínez, que no ha sido, hasta el momento,
recogida en los catálogos de la producción del artista. Se analiza la procedencia de la obra, vinculada posiblemente al convento de San Francisco de Sevilla, y se determina su iconografía y su mensaje doctrinal.A series of artworks are emerging in the art market in the last years after being dispossessed
from its original location to private hands. We introduce in this paper a painting signed by the Sevillian artist Domingo Martínez, which has not been included in his catalogue until now. The origin of
the work, possibly linked to the San Francisco Convent, will be discussed in the same way as iconography and doctrinal message
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