Compact homomorphisms of URM algebras
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- by F. Behrouzi and H. Mahyar
- Proc. Amer. Math. Soc. 133 (2005), 1205-1212
- DOI: https://doi.org/10.1090/S0002-9939-04-07592-6
- Published electronically: October 18, 2004
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Abstract:
We show when a homomorphism from a URM algebra into a uniform algebra or into a regular Banach algebra is weakly compact or compact. We prove that every homomorphism from URM algebras into $D^1(X)$ is compact. Finally, we characterize the spectra of compact endomorphisms of URM algebras defined on a connected compact Hausdorff space $X$.References
- Richard Aron, Pablo Galindo, and Mikael Lindström, Compact homomorphisms between algebras of analytic functions, Studia Math. 123 (1997), no. 3, 235–247. MR 1441536
- F. Behrouzi, Homomorphisms of certain Banach function algebras, Proc. Indian Acad. Sci. Math. Sci. 112 (2002), no. 2, 331–336. MR 1908374, DOI 10.1007/BF02829757
- H. G. Dales and A. M. Davie, Quasianalytic Banach function algebras, J. Functional Analysis 13 (1973), 28–50. MR 0343038, DOI 10.1016/0022-1236(73)90065-7
- Nelson Dunford and Jacob T. Schwartz, Linear operators. Part I, Wiley Classics Library, John Wiley & Sons, Inc., New York, 1988. General theory; With the assistance of William G. Bade and Robert G. Bartle; Reprint of the 1958 original; A Wiley-Interscience Publication. MR 1009162
- Joel F. Feinstein and Herbert Kamowitz, Compact endomorphisms of $H^\infty (D)$, Studia Math. 136 (1999), no. 1, 87–90. MR 1706583
- Pablo Galindo and Mikael Lindström, Gleason parts and weakly compact homomorphisms between uniform Banach algebras, Monatsh. Math. 128 (1999), no. 2, 89–97. MR 1712482, DOI 10.1007/s006050050048
- T. G. Honary and H. Mahyar, Approximation in Lipschitz algebras of infinitely differentiable functions, Bull. Korean Math. Soc. 36 (1999), no. 4, 629–636. MR 1736607
- Herbert Kamowitz, Compact endomorphisms of Banach algebras, Pacific J. Math. 89 (1980), no. 2, 313–325. MR 599123, DOI 10.2140/pjm.1980.89.313
- Herbert Kamowitz and Stephen Scheinberg, Homomorphisms of Banach algebras with range in $C^1[0,1]$, Internat. J. Math. 5 (1994), no. 2, 201–212. MR 1266281, DOI 10.1142/S0129167X94000115
- Gerald M. Leibowitz, Lectures on complex function algebras, Scott, Foresman & Co., Glenview, Ill., 1970. MR 0428042
- Shûichi Ohno and Junzo Wada, Compact homomorphisms on function algebras, Tokyo J. Math. 4 (1981), no. 1, 105–112. MR 625122, DOI 10.3836/tjm/1270215742
- Donald W. Swanton, Compact composition operators on $B(D).$, Proc. Amer. Math. Soc. 56 (1976), 152–156. MR 407648, DOI 10.1090/S0002-9939-1976-0407648-5
- A. Ülger, Some results about the spectrum of commutative Banach algebras under the weak topology and applications, Monatsh. Math. 121 (1996), no. 4, 353–379. MR 1389676, DOI 10.1007/BF01308725
- Wiesław Żelazko, Banach algebras, Elsevier Publishing Co., Amsterdam-London-New York; PWN—Polish Scientific Publishers, Warsaw, 1973. Translated from the Polish by Marcin E. Kuczma. MR 0448079
Bibliographic Information
- F. Behrouzi
- Affiliation: Faculty of Mathematical Sciences and Computer Engineering, Teacher Training University, Tehran 15618, Iran
- Email: behrouzif@yahoo.com
- H. Mahyar
- Affiliation: Faculty of Mathematical Sciences and Computer Engineering, Teacher Training University, Tehran 15618, Iran
- Email: mahyar@saba.tmu.ac.ir
- Received by editor(s): February 2, 2003
- Received by editor(s) in revised form: December 18, 2003
- Published electronically: October 18, 2004
- Communicated by: N. Tomczak-Jaegermann
- © Copyright 2004 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 133 (2005), 1205-1212
- MSC (2000): Primary 46J10; Secondary 46J15
- DOI: https://doi.org/10.1090/S0002-9939-04-07592-6
- MathSciNet review: 2117223