1928 Paris. NRF. 1928. 1 volume in-8, broché.
Reference : 45594
Edition originale.1 des 100 exemplaires numérotés, réservés aux Bibliophiles de la NRF.Envoi autographe signé de l’auteur : « A Willy Michel, iconogriffe des bons poètes. Son Léon-Paul Fargue ».
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"CARTAN, ÉLIE. - THE EINSTEIN-CARTAN THEORY (ECT) OF GRAVITATION.
Reference : 48912
(1922)
Paris, Gauthier-Villars, 1922. 4to. Bound in 2 uniform full cloth, but of slightly different sizes. Paperlabels pasted to lower part of spines. A faint stamp to titlepage and some of the issues. In ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 174. 1815,(1) pp. (Entire volume offered). Cartan's papers: pp.437-439, 593-595, 734-737, 857-60, 1104-1107.
First edition of these papers, in which Cartan intruced the concept of ""Torsion"", the main inspiration for Einstein in his searce for a unified field theory. The ECT of gravity is a modification of the General relativity Theory""The Einstein-Cartan theory, also known as the Einstein-Cartan-Sciama-Kibble theory, is a classical theory of gravitation similar to general relativity but relaxing the assumption that the affine connection has vanishing antisymmetric part (torsion tensor), so that the torsion can be coupled to the intrinsic angular momentum (spin) of matter, much in the same way in which the curvature is coupled to the energy and momentum of matter. In fact, the spin of matter in curved spacetime requires that torsion is not constrained to be zero but is a variable in the principle of stationary action. Regarding the metric and torsion tensors as independent variables gives the correct generalization of the conservation law for the total (orbital plus intrinsic) angular momentum to the presence of the gravitational field. The theory was first proposed by Élie Cartan in 1922 and expounded in the following few years. Dennis Sciama and Tom Kibble independently revisited the theory in the 1960s, and an important review was published in 1976. Albert Einstein became affiliated with the theory in 1928 during his unsuccessful attempt to match torsion to the electromagnetic field tensor as part of a unified field theory. This line of thought led him to the related but different theory of teleparallelism."" (Wikipedia).
CGEDD. 2017. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 184 pages. Nombreuses illustrations en couleurs dans le texte.. . . . Classification Dewey : 70.49-Presse illustrée, magazines, revues
Sommaire : L'évolution des richesseset des ressources des zones humides. Les zones humides , espaces vécus, espaces perçus, espaces imaginés... Classification Dewey : 70.49-Presse illustrée, magazines, revues
Paris, Gauthier-Villars et Cie, 1925. Uncut in orig. printed wrappers. (Mémorial des Sciences Mathématiques...Fascicule IX). (4),60,(4) pp. Small tears to backstrip, no loss.
First edition. The modern theory of differential geometry grew up in the years following Einstein's introduction of his general theory of relativity, by the work of Elie Cartan (his Géométrie des espaces de Riemann) and Herman Weyl.""Cartan was one of the most profound mathematicians of the last hundred years, and his influence is still one of the most decisive in the development of modern mathematics...Cartan's contributions to differential geometry are no less impressive, and it may be said that he revitalized the whole subject, for the initial work of Riemann and Darboux was being lost in dreary computations and minor results...his guiding principle was a considerable extension of the method of ""moving frames"" of Darboux and Ribaucooour, to which he gave a tremendous flexibility and power, far beyond anything that had been done in classical differential geometry."" (Jean Dieudonne in DSB).
Grund 2010 112 pages 15 8x1 8x20 6cm. 2010. Reliure editeur cartonnée. 112 pages. Ce livre de Terence Conran est un guide pratique qui démontre comment concevoir aménager et décorer des petits espaces pour les rendre plus fonctionnels et élégants améliorant ainsi la qualité de vie quotidienne et ce quel que soit le budget
Bon état
Paris : Hermann, (Collection "Actualités Scientifiques et Industrielles" N°1229 et 1230), juillet et octobre 1955 - deux volumes 16,5x25,2cm brochés de 191 pages + 3 pages dépliantes in-fine et feuillet de 4 pages de mode d'emploi du traité + feuillet d'errata n°5 dépliant de 3 pages + Fascicule de résultats : 40 pages + mode d'emploi et feuillet dépliant in-fine - Editions originales des dix-huitième et dix-neuvième tomes des Eléments de mathématiques, première partie des Structures fondamentales de l'analyse - exemplaire en très bon état -
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