... (2. 11) [z(t,x,y,p)[ < C[p[, V(t,x,y,p) E [0, T] • R ~ • R "~ x R m• Now, we see that (2. 6) and (2. 8) follow from (A1) and (A2); (2. 7) follows from (A1), (2. 2) and (2. 11); and (2. 9)- (2. 10) ... z) E [0, t]x ~n • ~ • ~, (2. 22) t,(lyl)I <_ a(t, x, y, z)a(t, x, y, z) T <_ CI, (2. 23) ([a(t,x,y,z)T]-lz [a(t,x,y,~)T]-l~,z ~) >_ Zlz - ~l 2, (2. 24) Ib(t,x,O,O)l + Ih(t,x,O,O)l ... Optimal Control Note that (see (4 .28 )) .As (Ix[ 2) [x=w = 2nr + [a(g, ~, 0e(~, E)) 12 + 2 ( b(g, ~, 0e(~, 5)), ~) < 2ha + C~ + C~[5[ <_ Ce + Cs[ ~-1 /2. Hence, for any (s, x) e [0, TJ...