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Albert J. Crumeyrolle (1919–1992) was a French mathematician and professor of mathematics at the Paul Sabatier University, known for his contributions to spinor structures and Clifford algebra. == Work == Crumeyrolle was a student of André Lichnerowicz under whose supervision he completed a thesis in 1961.〔(Albert J. Crumeyrolle ), www.gravityresearchfoundation.org〕 His first important paper after completing his doctorate addressed spinor structures using methods of Clifford algebras developed by Claude Chevalley.〔Artibano Micali: ''Albert Crumeyrolle: la démarche algébrique d'un géomètre''. In: Pertti Lounesto, Rafał Abłamowicz (ed.): ''Clifford Algebras and Spinor Structures: A Special Volume Dedicated to the Memory of Albert Crumeyrolle (1919--1992)'', Springer Netherlands, 1995, ISBN 0-7923-3366-7, p. ix–xiv (in French language)〕 Crumeyrolle is known for his major contributions to theories of Clifford algebras and spinor structures. In 1975 he laid the foundations for symplectic Clifford algebra and the symplectic spinor.〔Zbigniew Oziewicz, Bernard Jancewicz, Andrzej Borowiec (eds.): ''Spinors, Twistors and Clifford Algebras and Quantum Deformations: Proceedings of the II Max Born Symposium Held Near Wroclaw, Poland, September 1992 (Fundamental Theories of Physics)'', Springer, 1993, (p. xv )〕 An earlier publication by two other authors, Nouazé and Revoy, had appeared three years before in which Weyl algebras were treated from a Cliffordian point of view. Crumeyrolle however drew more attention to the topic, and, as emphasized by Jacques Helmstetter, he contributed original ideas of his own.〔Publication by Nouazé and Revoy, cited by: Jacques Helmstetter: ''Lipschitz' methods of 1886 applied to symplectic Clifford algebras''. In: Pertti Lounesto, Rafał Abłamowicz (ed.): ''Clifford Algebras: Applications to Mathematics, Physics, and Engineering'', Birkhäuser, 2004, ISBN 978-0-8176-3525-1, pp. 323–334, therein (p. 332 )〕 His work on symplectic Clifford algebras however came under serious critique on mathematical grounds.〔Jacques Helmstetter: ''Lipschitz' methods of 1886 applied to symplectic Clifford algebras''. In: Pertti Lounesto, Rafał Abłamowicz (ed.): ''Clifford Algebras: Applications to Mathematics, Physics, and Engineering'', Birkhäuser, 2004, ISBN 978-0-8176-3525-1, pp. 323–334, therein (p. 333 )〕 The mathematician Artibano Micali recalled Crumeyrolle stating that periodicity of Clifford algebras should play a similar role for elementary particle physics as the periodic classification of elements by Dmitri Mendeleev has played for the periodic table of elements.〔 Crumeyrolle taught in Iran in 1966, in several Europe countries and, in 1973, at Stanford University summer school.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Albert Crumeyrolle」の詳細全文を読む スポンサード リンク
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