Biçer, E.Tunç, C.2025-05-102025-05-1020171562-83532-s2.0-85018407500https://hdl.handle.net/20.500.14720/215In this paper, we obtain two new results on the Hyers-Ulam stability of the linear partial differential equation of second order with constant coefficients Azxx + (A + B)zxy + Bzyy + Azx + Bzy = 0 and the partial Euler differential equation of the form x2zxx + 2xyzxy + y2zyy +mxzx + myzy - mz = 0. Our findings make a contribution to the topic and complete those in the relevant literature. © 2017 InforMath Publishing Group.eninfo:eu-repo/semantics/closedAccessHyers-Ulam StabilityPartial Differential EquationSecond OrderArticle