The Pure and Applied Mathematics (한국수학교육학회지시리즈B:순수및응용수학)
- Volume 15 Issue 4
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- Pages.393-400
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- 2008
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- 1226-0657(pISSN)
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- 2287-6081(eISSN)
ON AN ADDITIVE FUNCTIONAL INEQUALITY IN NORMED MODULES OVER A $C^*$ -ALGEBRA
- An, Jong-Su (DEPARTMENT OF MATHEMATICS EDUCATION, PUSAN NATIONAL UNIVERSITY)
- Published : 2008.11.30
Abstract
In this paper, we investigate the following additive functional inequality (0.1) ||f(x)+f(y)+f(z)+f(w)||
Keywords
- Jordan-von Neumann functional equation;
- functional inequality;
- linear mapping in normed modules over a $C^*$-algebra