F. Jamjoom

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math.OA2019

Linear maps which are anti-derivable at zero

Doha Adel Abulhamil, Fatmah B. Jamjoom, Antonio M. Peralta

Let $T : A \to X$ be a bounded linear operator, where $A$ is a C $^{*}$ -algebra, and $X$ denotes an essential Banach $A$ -bimodule. We prove that the following statements are equivalent:…

math.OA2015

Quadratic Conorm and extremally rich JB*-triples

Fatmah B. Jamjoom, Antonio M. Peralta, Akhlaq A. Siddiqui +1

We introduce and study the class of extremally rich JB $^{*}$ -triples. We establish new results to determine the distance from an element $a$ in an extremally rich JB $^{*}$ -triple $E$ t…