Characterizations of certain multiplier classes (Record no. 48762)

000 -LEADER
fixed length control field 02379nam a2200265Ia 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 160627s1994||||xx |||||||||||||| ||und||
080 ## - UNIVERSAL DECIMAL CLASSIFICATION NUMBER
Universal Decimal Classification number UNM Th-47
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Radha, R.
Relator term author
245 ## - TITLE STATEMENT
Title Characterizations of certain multiplier classes
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Year of publication 1994
300 ## - PHYSICAL DESCRIPTION
Number of Pages iv; 64p.
502 ## - DISSERTATION NOTE
Dissertation note 1994
502 ## - DISSERTATION NOTE
Degree Type Ph.D
502 ## - DISSERTATION NOTE
Name of granting institution University of Madras
520 3# - SUMMARY, ETC.
Summary, etc This thesis deals with the study of the multipliers. The problem of characterizing the multipliers from a Segal Algebra S(G) into the space ((L^p)(G))and from S(G) into ((A^p)(G)). A vector version of characterizations of the multipliers for the pair ( (L^1)(G), (L^p)(G) ) is also obtained. Segal Algebras are very important subalgebras of((L^1)(G)). The class of functions introduced by Wiener in 1932 in his study of Tauberian theorems is the very first example of a Segal Algebra. In this thesis, Segal Algebra, Multipliers on Segal Algebra are definded; Many lemmas and Theorems are described, proved with some remarks, and used for discussions of the present study. On discussions over 'Multipliers and A^p(G) algebras, a concrete dual space characterization for the space M(S(G), A^p(G)) where S(G) is a Segal Algebra contained in A^p(G), is obtained. And proved that for 1<p<infinity, M(S(G), A^p(G)) could be identified with a Banach Space of continuous functions. Existence of Isometric Isomorphism of M(S(G),A^p(G)) onto the dual space of a Banach space of a continuous functions is stated in a theorem and proved that on a unit sphere of M(S(G), A^p(G)) the strong operator topology is stronger than the weak*topology. A vector version of the characterizations of the multipliers for the pair (L^(G), L^p(G)), 1<p<infinity, is provided, where G is a locally compact abelian group under the assumption that A is commutative Banach Algebra with a bounded approximate identity. The main theorem, Let T: L^1(G) --> L^p(G,A) be a continuous -linear operator where 1<p<infinity, with some conditions stated to be equivalent and proved.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Mathematics
653 10 - INDEX TERM--UNCONTROLLED
Uncontrolled term Linear Operators
653 10 - INDEX TERM--UNCONTROLLED
Uncontrolled term Multiplier Classes
653 10 - INDEX TERM--UNCONTROLLED
Uncontrolled term Segal Algebras
653 10 - INDEX TERM--UNCONTROLLED
Uncontrolled term Vector Measures
720 1# - ADDED ENTRY--UNCONTROLLED NAME
Thesis Advisor Unni, K. R.
Relator term Thesis advisor [ths]
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier http://www.imsc.res.in/xmlui/handle/123456789/71
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type THESIS & DISSERTATION
Holdings
Withdrawn status Lost status Damaged status Not for loan Current library Full call number Accession Number Uniform Resource Identifier Koha item type
        IMSc Library UNM Th-47 36815 http://www.imsc.res.in/xmlui/handle/123456789/71 THESIS & DISSERTATION
The Institute of Mathematical Sciences, Chennai, India

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