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20132026
most citedAn optimal multiplier theorem for Grushin operators in the plane, I

6 citations · 29 across the 23 of their papers we have counts for

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math.SP2014

Discreteness of the spectrum of Schrödinger operators with non-negative matrix-valued potentials

Gian Maria Dall'Ara

We prove three results giving sufficient and/or necessary conditions for discreteness of the spectrum of Schrödinger operators with non-negative matrix-valued potentials, i.e., ope…