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math.SP2016★ 5 cited
On the numerical radius of a quaternionic normal operator
G Ramesh
We prove that for a right linear bounded normal operator on a quaternionic Hilbert space (quaternionic bounded normal operator) the norm and the numerical radius are equal. As a co…
math.SP2015★ 1 cited
Weyl-von Neumann-Berg theorem for quaternionic operators
G. Ramesh
We prove the Weyl-von Neumann-Berg theorem for quaternionic right linear operators (not necessarily bounded) in a quaternionic Hilbert space: Let be a right linear normal (need…