Open AccessOn $ R $-subcommuting maps and best approximations in Banach spaces
Author(s) -
Naseer Shahzad
Publication year - 2001
Publication title -
tamkang journal of mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.324
H-Index - 18
eISSN - 0049-2930
pISSN - 2073-9826
DOI - 10.5556/j.tkjm.32.2001.368
Subject(s) - banach space , mathematics , class (philosophy) , pure mathematics , discrete mathematics , approximations of π , mathematical analysis , computer science , artificial intelligence
A result on best approximation is proved in Banach spaces satisfying Opial's condition. Recent results of Jungck and Sessa [Math. Japonica, 42(1995), 249-252.] are extended to a new class of noncommuting maps
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