Equation Icon  √ -- √2-- -- √ -- -- u (Rret)= 2u (RB) = s − ---ξiR (s)Y01i(ζ,ζ) + 2ξiRj(s )Y 02ij(ζ,ζ) (210 ) ( √ -- 2 ) 2 i 0 -- √ --ij 0 -- τ = s + i ---ξI(s)Y1i(ζ,ζ) − 2ξI (s)Y2ij(ζ, ζ) . (211 ) 2