Let F, G ∈ C [ x, y ]. If the Jacobian determinant of F and G is 1, then G is said to be a Jacobian mate of F. If, in addition, G has degree less than that of F, then G is said to be a younger mate of ...
Taiwanese Journal of Mathematics, Vol. 23, No. 6 (December 2019), pp. 1365-1388 (24 pages) Recently, Lenzmann and the author observed how to obtain a large class of sharp commutator estimates by a ...
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