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On the de Sitter spectra

О спектрах де Ситтера

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

The principal series of the unitary irreducible representations of the noncompact symplectic groupSp 1,1 are constructed using a generalization to the quaternionic field of Grave’s paper onU p,q . The spectra of these representations are explicitly calculated. SinceSp 1,1 is the covering of the de Sitter groupO 4,1, its invariants are related by contraction to those of the Poincaré group.

Riassunto

Si sono costruite le serie principali delle rappresentazioni unitarie non riducibili del gruppo simpletico non compattoSp 1,1 usando una generalizzazione al campo quaternionico dei principi del lavoro di Graev suU p,q . Si calcolano esplicitamente gli spettri di queste rappresentazioni. EssendoSp 1,1 il gruppo coprente del gruppo di de SitterO 4,1, i suoi invarianti sono correlati con quelli del gruppo di Poincaré per contrazione.

Реэюме

Испольэуя обобшение на случай кватернионного поля статьи Граева оU p,q , конструируются главные ряды унитарных неприводимых представлений некомпактной симплексной группыSp 1,1. В явном виде вычисляются спектры зтих представлений. Так какSp 1,1 представляет оболочку группы де СиттераO 4,1, то инварианты зтой группы определяются свертыванием инвариантов группы Пуанкаре.

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Literatur

  1. C. Chevalley:Theory of Lie Groups, Vol.1 (Princeton, N. J., 1946).

  2. M. I. Graev:Trudy Moscov. Mat. Obšč.,7, 335 (1958) (English translation:Amer. Math. Soc. Trans.,66, 1 (1967)).

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Aguirre, E., Esteve, A. On the de Sitter spectra. Nuov Cim A 21, 743–759 (1974). https://doi.org/10.1007/BF02731228

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  • DOI: https://doi.org/10.1007/BF02731228

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