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math.FA2018
Frame Multipliers for discrete frames on Quaternionic Hilbert Spaces
M. Khokulan, K. Thirulogasanthar
In this note, following the complex theory, we examine discrete controlled frames, discrete weighted frames and frame multipliers in a non-commutative setting, namely in a left qua…
math.FA2018★ 38 cited
Fredholm operators and essential S-spectrum in the quaternionic setting
B. Muraleetharan, K. Thirulogasanthar
For bounded right linear operators, in a right quaternionic Hilbert space with a left multiplication defined on it, we study the approximate -point spectrum. In the same Hilbert…