Sufficient conditions are established for the oscillation of solutions of neutral partial functional differential equations of the form (partial deriv)/(partial deriv t) [p(t)(partial deriv)/(partial deriv t) (u(x,t) + sum from i=1 to l of #lambda#_i(t)u(x,t - #tau#_i))] = a(t) triangle open u (x,t) + sum from k=1 to s of a_k (t) triangle open u (x,t - #rho#_k(t)) - q(x,t)u(x,t) - sum from j=1 to m of q_j(x,t)f_j(u(x,t - #pho#_j)), (x,t) implied by #OMEGA# * [0, infinity) ident to G, where #OMEGA# is a bounded domain in R~N with a piecewise smooth boundary partial deriv #OMEGA# and triangle open is the Laplacian in the Euclidean N-space R~N.
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