Representations of twisted group algebras
HTML articles powered by AMS MathViewer
- by Robert C. Busby and Harvey A. Smith
- Trans. Amer. Math. Soc. 149 (1970), 503-537
- DOI: https://doi.org/10.1090/S0002-9947-1970-0264418-8
- PDF | Request permission
Abstract:
We construct a general class of Banach algebras which include as special cases the group algebra of a locally compact group, the group algebra of a group extension (in terms of the subgroup and quotient group), and some other examples, special cases of which have been studied under the name of covariance algebras. We develop the general representation theory and generalize Mackeyâs theory of induced representations.References
- Richard Arens, The adjoint of a bilinear operation, Proc. Amer. Math. Soc. 2 (1951), 839â848. MR 45941, DOI 10.1090/S0002-9939-1951-0045941-1
- Louis Auslander and Calvin C. Moore, Unitary representations of solvable Lie groups, Mem. Amer. Math. Soc. 62 (1966), 199. MR 207910
- Jacques Dixmier, Les $C^{\ast }$-algĂšbres et leurs reprĂ©sentations, Cahiers Scientifiques, Fasc. XXIX, Gauthier-Villars & Cie, Ăditeur-Imprimeur, Paris, 1964 (French). MR 0171173 â, Les algĂšbres dâopĂ©rateurs dans lâespace hilbertien, Cahiers Scientifiques, fasc. 25, Gauthier-Villars, Paris, 1957. MR 20 #1234.
- Sergio Doplicher, Daniel Kastler, and Derek W. Robinson, Covariance algebras in field theory and statistical mechanics, Comm. Math. Phys. 3 (1966), 1â28. MR 205095
- Edward G. Effros and Frank Hahn, Locally compact transformation groups and $C^*$-algebras, Bull. Amer. Math. Soc. 73 (1967), 222â226. MR 233213, DOI 10.1090/S0002-9904-1967-11690-2
- J. Feldman and F. P. Greenleaf, Existence of Borel transversals in groups, Pacific J. Math. 25 (1968), 455â461. MR 230837
- James Glimm, Families of induced representations, Pacific J. Math. 12 (1962), 885â911. MR 146297
- Alexandre Grothendieck, Produits tensoriels topologiques et espaces nucléaires, Mem. Amer. Math. Soc. 16 (1955), Chapter 1: 196 pp.; Chapter 2: 140 (French). MR 75539
- Einar Hille and Ralph S. Phillips, Functional analysis and semi-groups, American Mathematical Society Colloquium Publications, Vol. 31, American Mathematical Society, Providence, R.I., 1957. rev. ed. MR 0089373
- B. E. Johnson, An introduction to the theory of centralizers, Proc. London Math. Soc. (3) 14 (1964), 299â320. MR 159233, DOI 10.1112/plms/s3-14.2.299
- G. Philip Johnson, Spaces of functions with values in a Banach algebra, Trans. Amer. Math. Soc. 92 (1959), 411â429. MR 107185, DOI 10.1090/S0002-9947-1959-0107185-6 H. Leptin, Verallgemeinerte ${L^1}$-algebren, Math. Ann. 159 (1965), 51-76. â, Verallgemeinerte ${L^1}$-Algebren und projektive Darstellungen lokal kompakter Gruppen. I, Invent. Math. 3 (1967), 257-281. MR 37 #5328.
- H. Leptin, Verallgemeinerte $L^{1}$-Algebren und projektive Darstellungen lokal kompakter Gruppen. I, II, Invent. Math. 3 (1967), 257â281; ibid. 4 (1967), 68â86 (German). MR 229754, DOI 10.1007/BF01402952
- George W. Mackey, Imprimitivity for representations of locally compact groups. I, Proc. Nat. Acad. Sci. U.S.A. 35 (1949), 537â545. MR 31489, DOI 10.1073/pnas.35.9.537
- George W. Mackey, Induced representations of locally compact groups. I, Ann. of Math. (2) 55 (1952), 101â139. MR 44536, DOI 10.2307/1969423
- George W. Mackey, Unitary representations of group extensions. I, Acta Math. 99 (1958), 265â311. MR 98328, DOI 10.1007/BF02392428
- Saunders Mac Lane, Homology, Die Grundlehren der mathematischen Wissenschaften, Band 114, Academic Press, Inc., Publishers, New York; Springer-Verlag, Berlin-Göttingen-Heidelberg, 1963. MR 0156879
- I. E. Segal, A class of operator algebras which are determined by groups, Duke Math. J. 18 (1951), 221â265. MR 45133
- Robert Schatten, A Theory of Cross-Spaces, Annals of Mathematics Studies, No. 26, Princeton University Press, Princeton, N. J., 1950. MR 0036935
- Masamichi Takesaki, Covariant representations of $C^{\ast }$-algebras and their locally compact automorphism groups, Acta Math. 119 (1967), 273â303. MR 225179, DOI 10.1007/BF02392085
- Takasi Turumaru, Crossed product of operator algebra, Tohoku Math. J. (2) 10 (1958), 355â365. MR 102764, DOI 10.2748/tmj/1178244669 A. Weil, LâintĂ©gration dans les groupes topologiques et ses applications, 2nd ed., ActualitĂ©s Sci. Indust., no. 1145, Hermann, Paris, 1953.
- J. G. Wendel, Left centralizers and isomorphisms of group algebras, Pacific J. Math. 2 (1952), 251â261. MR 49911
- Georges Zeller-Meier, Produits croisĂ©s dâune $C^{\ast }$-algĂšbre par un groupe dâautomorphismes, C. R. Acad. Sci. Paris SĂ©r. A-B 263 (1966), A20âA23 (French). MR 199734
- J. Dixmier, Dual et quasi-dual dâune algĂšbre de Banach involutive, Trans. Amer. Math. Soc. 104 (1962), 278â283 (French). MR 139960, DOI 10.1090/S0002-9947-1962-0139960-6
- N. Bourbaki, ĂlĂ©ments de mathĂ©matique. Fascicule XXIX. Livre VI: IntĂ©gration. Chapitre 7: Mesure de Haar. Chapitre 8: Convolution et reprĂ©sentations, ActualitĂ©s Scientifiques et Industrielles [Current Scientific and Industrial Topics], No. 1306, Hermann, Paris, 1963 (French). MR 0179291
- Robert J. Blattner, Group extension representations and the structure space, Pacific J. Math. 15 (1965), 1101â1113. MR 188346
Bibliographic Information
- © Copyright 1970 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 149 (1970), 503-537
- MSC: Primary 46.80; Secondary 42.56
- DOI: https://doi.org/10.1090/S0002-9947-1970-0264418-8
- MathSciNet review: 0264418