EN
By using averaging techniques, some oscillation criteria for quasilinear elliptic differential equations of second order
$∑_{i,j=1}^{N} D_i[A_{ij}(x)|Dy|^{p-2}D_jy] + p(x)f(y) = 0$
are obtained. These results extend and generalize the criteria for linear differential equations due to Kamenev, Philos and Wong.