SHIH Mau-hsiang,TAM Ping-kwan.[J].数学年刊A辑,1999,20(2):159~168
ON TOPOLOGICAL LINEAR CONTRACTIONS ON NORMED SPACESAND APPLICATION
Received:April 03, 1998  Revised:September 14, 1998
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中文关键词:  
英文关键词:Contraction, Fixed point, Stable solution
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Author NameAffiliationE-mail
SHIH Mau-hsiang Department of Mathematics, Chung Yuan University, Chung-Li, Taiwan 32023, China  
TAM Ping-kwan Department of Mathematics, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong,China pktam@math.cuhk.edu.hk 
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中文摘要:
      
英文摘要:
      Simultaneous contractifications, simultaneous proper contractifications and semigroup \linebreak (countable family or finite family) of commuting operators and of non-commuting operators are first given.Characterizations are given for a single bounded linear operator being a topological proper contraction.By using complexification of a real Banach space and by applying a fixed point theorem of Edelstein, it is shown that every compact topological strict contraction on a Banach space is a topological proper contraction.Finally, results on simultaneous proper contractification are applied to study the stability of a common fixed point of maps which are Fr\'echet differentiable at that point.
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