논문KCI 등재
On Generalization of Covariance and Variance
한국수학교육학회|2006.05|이론수학과 교직수학 (Theoretical Mathematics and Pedagogical Mathematics)|제13권 제2호|pp. 137-149
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Abstract
We introduce the notion of the generalized covariance and variance for bounded linear operators on a Hilbert space, and prove that the generalized covariance-variance inequality holds. It turns out that the inequality is a useful formula in the study of inequality involving linear operators in Hilbert spaces.
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