Local minimums 1 Non-uniqueness of local minima 1 Non-uniqueness of local minimum 1 Nonuniqueness 1 Optimal control 1 Optimal control problem 1 Optimal control systems 1 Optimal controls 1 Optimal solutions 1 Parabolics 1 Partial differential equations 1 Semilinear 1 Semilinear parabolic equation 1 Semilinear parabolic equations Stability 1 Stability of local solution 1 Stability of local solutions 1