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Published in 2018 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2017.11.022
Abstract: Abstract Let L = ∂ / ∂ t + ∑ j = 1 N ( a j + i b j ) ( t ) ∂ / ∂ x j be a vector field defined…
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Keywords:
solvability global;
global solvability;
global hypoellipticity;
hypoellipticity gevrey ... See more keywords