Equation Icon  { u∗H (t,x )P (t,x,s)u } v(t0) := sup -----∗----0---------: 0 ≤ t ≤ t0,x ∈ ℝn, s ∈ Sn−1,u ∈ ℂm, u ⁄= 0 . (3.110) u H (t,x)u