Operator Least Squares Problems and Moore–Penrose Inverses in Krein Spaces
نویسندگان
چکیده
منابع مشابه
Operator convexity in Krein spaces
We introduce the notion of Krein-operator convexity in the setting of Krein spaces. We present an indefinite version of the Jensen operator inequality on Krein spaces by showing that if (H , J) is a Krein space, U is an open set which is symmetric with respect to the real axis such that U ∩ R consists of a segment of real axis and f is a Kreinoperator convex function on U with f(0) = 0, then f(...
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ژورنال
عنوان ژورنال: Integral Equations and Operator Theory
سال: 2018
ISSN: 0378-620X,1420-8989
DOI: 10.1007/s00020-018-2456-4