math.OA — Operator Algebras
Improved Cauchy-Schwarz-Kaplansky Inequality
We make an improvement and give a new proof for Cauchy-Schwarz-Kaplansky inequality derived by Kaplansky [\textit{Am. J. Math., 1953}].
Primarily human-written textHuman understanding: all partsC*-algebraCauchy-Schwarz-Kaplansky inequalityLagrange identity.