Schrödinger operators, typically formulated as −Δ + V where Δ denotes the Laplacian and V a potential function, are central to quantum mechanics and spectral theory. A key focus in recent ...
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We consider the commutator of Calderón-Zygmund operator and multiplication operator by b, that is, the commutator of Coifman, Rochberg and Weiss. We study the boundedness of this operator on the Hardy ...
The first type of motor built is still in widespread use In the late 1800s, several inventors built the first working motors, which used direct current (DC) power. After the invention of the induction ...
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