Analytic and Gevrey regularity for certain sums of two squares in two variables
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Publication:6203868
DOI10.2748/TMJ.20220613MaRDI QIDQ6203868
Publication date: 8 April 2024
Published in: Tôhoku Mathematical Journal. Second Series (Search for Journal in Brave)
Smoothness and regularity of solutions to PDEs (35B65) Analyticity in context of PDEs (35A20) Microlocal methods and methods of sheaf theory and homological algebra applied to PDEs (35A27) Hypoelliptic equations (35H10) Subelliptic equations (35H20)
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