Cosine of angle and center of mass of an
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Kallol Paul; Gopal Das
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Article
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2012
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SP Versita
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English
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We consider the notion of real center of mass and total center of mass of a bounded linear operator relative to another bounded linear operator and explore their relation with cosine and total cosine of a bounded linear operator acting on a complex Hilbert space. We give another proof of the Min-max