Optimal Gevrey regularity for certain sums of squares in two variables Article Sidebar Requires Subscription Download Article PDF Submitted: May 16, 2022 Accepted: Jan 25, 2023 Published: Feb 20, 2023 DOI: https://doi.org/10.2422/2036-2145.202205_011 Issue 2022: Forthcoming articles Section Article Main Article Content Antonio Bove Marco Mughetti Article Details