TY - JOUR
T1 - Integral Averaging Technique for Oscillation of Elliptic Equations of Second Order
AU - Zhiting Xu , Baoguo Jia  & Dongkui Ma 
JO - Journal of Partial Differential Equations
VL - 3
SP - 193
EP - 203
PY - 2003
DA - 2003/08
SN - 16
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jpde/5418.html
KW - Oscillation
KW - asymptotic
KW - elliptic differential equations of second order
AB -  The elliptic differential equations of second order \sum^n_{i,j=1}D_i[A_{ij}(x, y)D_jy] + P(x, y) + Q(x, y, ∇y) = e(x), x ∈ Ω . will be considered in an exterior domain Ω⊂ R^n, n ≥ 2. Some oscillation criteria are given by integral averaging technique.