Classification and reduction to canonical form of linear differential equations partial of the sixth-order with non-multiple characteristics - Abdukodirov, A.T.; Tulkinboev, T.A. (Қарағанды университетінің хабаршысы. Математика сериясы, 2025)
Keywords: a sixth-order partial differential equation; canonical form of differential equations; classification of differential equations; elliptic differential operator; hyperbolic differential operator; non-multiple characteristics