Abstract :
Sufficient conditions are established for the oscillation of solutions of neutral
partial functional differential equations of the form
l
p t. u x, t. q li t.u x, tyti. / t t is1
s
sa t. Du x, t. q ak t. Du x, tyrk t..yq x,t.u x, t.
ks1
m
y qj x,t.fj u x, tysj.., x, t.gV= w0, `.ʹG,
js1
where V is a bounded domain in RN with a piecewise smooth boundary V and D
is the Laplacian in the Euclidean N-space RN.
