Short Communications

Integral Equations and Operator Theory

, Volume 10, Issue 1, pp 140-145

First online:

An inequality for generalized s-numbers

  • Yoshihiro NakamuraAffiliated withDivision of Applied Mathematics Research Institute of Applied Electricity, Hokkaido University

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We shall prove an inequality for the generalized s-numbers of the product of two operators by a method which is new even in the case of matrices and compact operators.