A note on the Gelfand-Mazur theorem

被引:4
作者
Bhatt, SJ [1 ]
Karia, DJ
Kulkarni, SH
Shimpi, ME
机构
[1] Sardar Patel Univ, Dept Math, Vallabh Vidyanagar 388120, Gujarat, India
[2] Indian Inst Technol, Dept Math, Madras 600036, Tamil Nadu, India
[3] BVM Engn Coll, Dept Math, Vallabh Vidyanagar 388120, Gujarat, India
关键词
real *-algebra; Pythagorean norm; Gelfand-Mazur theorem; Froelich-Ingelstam-Smiley theorem;
D O I
10.1090/S0002-9939-98-04658-9
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Three Gelfand-Mazur type theorems are proved. One of these provides a C*-property analogue of Zalar's recent generalizations of the Froelich-Ingelstam-Smiley Theorems concerning unital multiplication in Hilbert spaces; the second illustrates that the assumption in Kaplansky's version of the Gelfand-Mazur Theorem can be weakened in the presence of a C*-norm; whereas the third provides a real analogue of a result due to Srinivasan.
引用
收藏
页码:2999 / 3005
页数:7
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