Electronic Journal of Differential Equations, Vol. 2006(2006), No. 50, pp. 1-9. Title: Gevrey problem for parabolic equations with changing time direction Author: Igor S. Pulkin (Moscow Technical Univ., Russia) Abstract: This article concerns parabolic equations with changing time direction and Gevrey's boundary condition. Using expansion series and biorthogonal systems, we prove the existence of classical solutions. Submitted March 13, 2006. Published April 18, 2006. Math Subject Classifications: 35K05, 35K20, 35K99, 35M99. Key Words: Gevrey problem; equation with changing time direction.