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Let \ₙ\₍=₁^ and \ₘ\₌=₁^ be two modular Parseval frames for a Hilbert C*-module E. Then for every x E\0\, we show that align (1) \|_ x \|₀ \|_ x \|₀ 1₍, ₌ ₍ \| ₙ, ₘ \|². align We call Inequality (1) as Noncommutative Donoho-Stark-Elad-Bruckstein-Ricaud-Torr\'esani Uncertainty Principle. Inequality (1) is the noncommutative analogue of breakthrough Ricaud-Torr\'esani uncertainty principle IEEE Trans. Inform. Theory, 2013. In particular, Inequality (1) extends Elad-Bruckstein uncertainty principle IEEE Trans. Inform. Theory, 2002 and Donoho-Stark uncertainty principle SIAM J. Appl. Math. , 1989.
K. Mahesh Krishna (Sat,) studied this question.