Equation Icon  ( ∫ ) (1) 3-- ωa- (1) (1) aa = lsim→0 4π 2shtt dΩ − ∂thta ∫ ( ) = lim -3- 1∂ h(1)− ∂ h(1) ωiω dΩ, (22.86 ) s→0 4π 2 i tt t ti a