Following problem Cycles 4 Elliptic problem 4 Graph labeling 4 Graph labelings 4 Incidence matrices 4 Incidence matrix 4 Kernel 4 Labeling 4 Labelings 4 Lipschitz domain 4 Local symmetry 4 Multiplicative version 4 Polynomial algorithm 4 Positive integers 4 Possible solutions 4 Toric ideal 4 Toric ideals 4 Unit ball 4 Differential equations 2 Free boundaries 2 Free boundary 2 Free-boundary problems 2 Growth conditions 2 Limiting problem 2 Mathematical operators 2 Orlicz spaces 2 Quasi-linear 2 Singular perturbation 2 Singular perturbation problems 2