Zobrazeno 1 - 10
of 51
pro vyhledávání: '"H. Caprasse"'
Autor:
H. Caprasse
Publikováno v:
Discrete Mathematics & Theoretical Computer Science, Vol Vol. 1 (1997)
An elementary introduction to the classical version of gauge theories is made. The shortcomings of the usual gauge fixing process are pointed out. They justify the need to replace it by a global symmetry: the BRST symmetry and its associated BRST cha
Externí odkaz:
https://doaj.org/article/e0b636b2c96d4410a36ec4c1546d7ce4
Publikováno v:
International Journal of Modern Physics C. :1035-1047
It is shown that for a large class of non-holonomic quantum mechanical systems one can make the computation of BRST charge fully algorithmic. Two computer algebra programs written in the language of {\tt REDUCE} are described. They are able to realiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28f6b5f1f9f515abe4ac8272164270db
https://doi.org/10.1142/s0129183194001136
https://doi.org/10.1142/s0129183194001136
Publikováno v:
International Journal of Modern Physics D. :257-278
The generic cubic contributions to the Lagrangian of gravitation theory are considered. Field equations are determined and put in their simplest form. In the framework of Bianchi I cosmological models with a metric which is power-like in time, algebr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65dcff02f53a4adc2d24ba36df73542f
https://doi.org/10.1142/s0218271893000209
https://doi.org/10.1142/s0218271893000209
Autor:
H. Caprasse, A. Burnel
Publikováno v:
International Journal of Modern Physics A. :6509-6521
The gluon-exchange contribution to the gluon self-energy is computed in the planar and light-cone gauges with the unique single-pole causal prescription. In both cases the result does not satisfy the Ward identity. This could be related to the differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80a833cdbe43ea1374ac7107955f63bd
https://doi.org/10.1142/s0217751x92002982
https://doi.org/10.1142/s0217751x92002982
Autor:
H. Caprasse, A. Burnel
Publikováno v:
International Journal of Modern Physics C. :321-335
A program to compute the gluon self-energy diagram in class III nonrelativistic gauges has been constructed. It succeeded to show that axial gauges do not exhibit nonlocal counterterms. The high complexity of the calculations, the need to be able to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b3ebc7a7a7402148a98a4f6f4178615
https://doi.org/10.1142/s0129183192000269
https://doi.org/10.1142/s0129183192000269
Autor:
H. Caprasse, A. Burnel
Publikováno v:
Physics Letters B. 265:355-360
It is shown within a perturbative calculation of the gluon self-energy that, in the framework of a general formulation of linear gauges, axial gauges do not exhibit nonlocal counterterms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6036737b9ccd38ebf757909c3ce5640
https://doi.org/10.1016/0370-2693(91)90065-x
https://doi.org/10.1016/0370-2693(91)90065-x
Publikováno v:
International Journal of Modern Physics C. :601-611
This paper is devoted to the application of computer algebra to the study of solutions of the field equations derived from a non-linear Lagrangian, as suggested by recently proposed unified theories. More precisely, we restrict ourselves to the most
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa08bbb621b24de5b6dffafdd6ad1d10
https://doi.org/10.1142/s0129183191000901
https://doi.org/10.1142/s0129183191000901
Publikováno v:
Physical Review D. 41:1163-1171
The correct field equations for several ten-dimensional Lovelock-type Lagrangians including terms up to fourth order in the curvature are given. They were deduced from a program which exploits the facilities of the differential package EXCALC. A firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3e8be92e0a2a28f003d75f64004d73a
https://doi.org/10.1103/physrevd.41.1163
https://doi.org/10.1103/physrevd.41.1163
Autor:
H. Caprasse
Publikováno v:
Journal of Symbolic Computation. 9:61-72
The set of perturbative solutions of the renormalisation group equation relative to the coupling constant known in quantum field theory is studied. It is shown that it is generated by the continuous iteration of a particular solution. The iteration p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cee77a05a64a08ca8dbb251bbfe52e7b
https://doi.org/10.1016/s0747-7171(08)80007-7
https://doi.org/10.1016/s0747-7171(08)80007-7
Autor:
A. Burnel, H. Caprasse
Publikováno v:
ISSAC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::553bddd7313e40dca833470d7eee183b
https://doi.org/10.1145/143242.143281
https://doi.org/10.1145/143242.143281