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Showing papers on "Test theories of special relativity published in 1971"


01 Jan 1971

109 citations




Book
01 Jan 1971

45 citations


Journal ArticleDOI
TL;DR: In this paper, it is pointed out that there is no real reason why one should rigidly follow the so-called real space-momentum prescription when "pinching" occurs in a field theory with indefinite metric.
Abstract: It is pointed out that, contrary to the view expressed by Nakanishi, there is no real reason why one should rigidly follow the so-called "real space-momentum" prescription when "pinching" occurs in a field theory with indefinite metric. Since by adopting the modification introduced by Cutkosky et al., a relativistic and unitary $S$ matrix can be obtained, that should be the obvious choice.

39 citations


Journal Article
TL;DR: In this article, the authors develop from a variational formulation the field equations, jump conditions across a discontinuity surface and nonlinear constitutive equations for a magnetized elastic medium with finite deformations in the frame of the general theory of relativity.
Abstract: In this article, we develop from a variational formulation the field equations, jump conditions across a discontinuity surface and nonlinear constitutive equations for a magnetized elastic medium with finite deformations in the frame of the general theory of relativity. RESUME. Dans le present article, nous généralisons dans le cadre de la relativité générale, la théorie des milieux continus déformables en interaction avec le champ magnétique donnée precedemment dans le cadre de la relativité restreinte [6][25]-[27]. Le milieu continu considéré est un milieu solide élastique sujet a des deformations finies et en interaction avec les champs gravifique et magnétique. Un principe variationnel qui suit la formulation que Taub [12] a donnée pour le schema fluide parfait est employe. Toutes les equations du champ (equations d’Einstein, conservation de 1’impulsion-energie, equations de Maxwell dans un milieu matériel, conservation du flux d’entropie) en découlent ainsi que les conditions de saut a travers une surface de discontinuité. Comme dans le travail de Taub, il est montré que cette derniere ne peut etre variée indépendamment du parametre thermodynamique. Les lois non-linéaires de comportement sont également obtenues a partir d’un potentiel, l’énergie libre de Helmholtz qui est écrite sous forme invariante, ceci généralisant la contrainte habituellement imposée par le principe d’indifference matérielle en mécanique classique des milieux continus. ANN. INST. POINCARÉ, A-X V-4 20 276 G~RARD A. MAUGIN

25 citations


Journal ArticleDOI
TL;DR: The social roots of the theory of relativity are discussed in this paper, where the authors propose a model of the social relation between humans and the universe in the context of science and technology.
Abstract: (1971). The social roots of Einstein's theory of relativity. Annals of Science: Vol. 27, No. 4, pp. 313-344.

12 citations








Journal ArticleDOI
TL;DR: In this paper, the traditional time dilatation of the special theory of relativity is upheld and a recent statement of L.M. Stephenson (ibid., vol. 3, 368, 1970) in connection with complete clocks is disputed.
Abstract: A recent statement of L.M. Stephenson (ibid., vol. 3, 368, 1970) in connection with complete clocks is disputed and the traditional time dilatation of the special theory of relativity is upheld.