FINITE DIFFERENCE APPROXIMATION OF MS MODEL: A CHAMBOLLE. 1995 o Finite difference approximation(ID) F(n)=b∑ h +h∑(nk-)2 k (k+1)h where Wn(t)=min(t2, 1/h)and gk kh F(u)=/(u-0)2dx+ u2d x+card(su Set of discontinuities of u o Finite difference approximation(2D) E(u)+2(座 +2∑(唉1一9)2 Hard to solve!FINITE DIFFERENCE APPROXIMATION OF MS MODEL: A. CHAMBOLLE, 1995  Finite difference approximation (1D)  Finite difference approximation (2D) where and Set of discontinuities of u Hard to solve!