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20132021
most citedHypoellipticity of a Class of Infinitely Degenerate Second Order Operators and Systems

1 citations · 1 across the 6 of their papers we have counts for

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math.FA2021

Sums of squares II: matrix functions

Lyudmila Korobenko, Eric T. Sawyer

This is the second in a series of three papers dealing with sums of squares and hypoellipticity in the infinitely degenerate regime. We give sharp conditions on the entries of a po…

math.FA2021

Sums of squares III: hypoellipticity in the infinitely degenerate regime

Lyudmila Korobenko, Eric T. Sawyer

This is the third in a series of papers dealing with sums of squares and hypoellipticity in the infinitely degenerate regime. We establish a C^2,delta generalization of M. Christ's…