Title of article :
REDUCTION THEOREM AND NORMAL FORMS OF LINEAR SECOND ORDER MIXED TYPE PDE FAMILIES IN THE PLANE
Author/Authors :
DAVYDOV, ALEXEY IIASA, Austria , DAVYDOV, ALEXEY Vladimir State University, Russia , DIEP, LINH TRINH THI Vladimir State University, Russia
Abstract :
Normal forms for smooth deformation of germ of characteristic equation of second order partial differential equation being linear with respect to second derivative is found near a point of tangency of characteristic direction with the type change line, when this singular point is nondegenerate and non-resonance.
Keywords :
implicit differential equation , mixed type equation , normal form , classification
Journal title :
TWMS Journal of Pure and Applied Mathematics
Journal title :
TWMS Journal of Pure and Applied Mathematics
