Buzano Inequality in Inner Product $C^*$-modules Via the Operator Geometric Mean
Jun Ichi Fujii, Masatoshi Fujii, Yuki Seo
In this paper, by means of the operator geometric mean, we show a Buzano type inequality in an inner product $C^*$-module, which is an extension of the Cauchy-Schwarz inequality in an inner product $C^*$-module.