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math.FA2020
Gateaux derivative of C* norm
Sushil Singla
We find an expression for Gateaux derivative of the -algebra norm. This gives us alternative proofs or generalizations of various known results on the closely related notions…
math.FA2020★ 11 cited
Birkhoff-James orthogonality and applications : A survey
Priyanka Grover, Sushil Singla
In the last few decades, the concept of Birkhoff-James orthogonality has been used in several applications. In this survey article, the results known on the necessary and sufficien…