Browse > Article
http://dx.doi.org/10.11568/kjm.2019.27.2.375

MATRIX OPERATORS ON FUNCTION-VALUED FUNCTION SPACES  

Ong, Sing-Cheong (Department of Mathematics, Central Michigan University)
Rakbud, Jitti (Department of Mathematics, Faculty of Science Silpakorn University)
Wootijirattikal, Titarii (Department of Mathematics, Statistics and Computer Faculty of Science, Ubon Ratchathani University)
Publication Information
Korean Journal of Mathematics / v.27, no.2, 2019 , pp. 375-415 More about this Journal
Abstract
We study spaces of continuous-function-valued functions that have the property that composition with evaluation functionals induce $weak^*$ to norm continuous maps to ${\ell}^p$ space ($p{\in}(1,\;{\infty})$). Versions of $H{\ddot{o}}lder^{\prime}s$ inequality and Riesz representation theorem are proved to hold on these spaces. We prove a version of Dixmier's theorem for spaces of function-valued matrix operators on these spaces, and an analogue of the trace formula for operators on Hilbert spaces. When the function space is taken to be the complex field, the spaces are just the ${\ell}^p$ spaces and the well-known classical theorems follow from our results.
Keywords
$C^*$-algebra; function space; operators; M-ideal; dual space;
Citations & Related Records
연도 인용수 순위
  • Reference
1 E.M. Alfsen and E.G. Effros, Structure in real Banach spaces, Ann. Math. 96 (1972), 98-173.   DOI
2 J Diestel, J.H. Fourie, and J. Swart, The Metric Theory of Tensor Products: Grothendieck's Resume Revisited, MBK, no. 52, AMS, 2008.
3 J. Dixmier, Les fonctionnelles lin'earies sur l'ensemble des op'erateurs born'es dans espace de Hilbert, Ann. Math. 51 (1950), 387-408.   DOI
4 P. Harmand, D. Werner and W. Werner, M-Ideals in Banach Spaces and Banach Algebras, Lecture Notes in Mathematics, vol. 1547, Springer-Verlag, 1993.
5 R.V. Kadison and J.R. Ringrose, Fundamentals of the Theory of Operator Algebras, vol. I, Academic Press, New York, 1983.
6 L. Livshits, S.-C. Ong, and S. Wang, Schur algebras over function algebras, Houston J. Math. 30 (2004), 1195-1217.
7 H.L. Royden and P.M. Fitzpatrick, Real Analysis, 4 ed., Prentice Hall, 2010.
8 T. Wootijirattikal, S.-C. Ong, and J. Rakbud, Functional decompositions on vector-valued function spaces via operators, J. Math. Anal. Appl. 389 (2012), 1173-1190.   DOI
9 O. Wootijiruttikal, S.-C. Ong, P. Chaisuriya, and J. Rakbud, Banach spaces of functions taking values in a $C^{\ast}$-algebra, Oper. Matrices 3 (2009), 373-396.   DOI