Electronic Journal of Differential Equations, Vol. 2010(2010), No. 178, pp. 1-24. Title: Dynamical problems without initial conditions for elliptic-parabolic equations in spatial unbounded domains Author: Mykola Bokalo (Ivan Franko National Univ., Lviv, Ukraine) Abstract: We consider a problem without initial conditions for degenerate nonlinear evolution equations with nonlinear dynamical boundary condition in spatial unbounded domains. We obtain sufficient conditions for the well-posedness of this problem without any restrictions at infinity. Submitted October 28, 2010. Published December 22, 2010. Math Subject Classifications: 34A09, 34G20, 35B15, 35K65, 47J35. Key Words: Problems without initial conditions; degenerate implicit equations; nonlinear evolution equations.