Integral operator and oscillation of second order elliptic equations
2005 ◽
Vol 36
(2)
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pp. 93-101
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By using integral operator, some oscillation criteria for second order elliptic differential equation$$ \sum^d _{i,j=1} D_i[A_{ij}(x)D_jy]+ q(x)f(y)=0, \;x \in \Omega\qquad \eqno{(E)} $$are established. The results obtained here can be regarded as the extension of the well-known Kamenev theorem to Eq.$(E)$.
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Keyword(s):
1989 ◽
pp. 939-957
◽
2019 ◽
Vol 266
(2-3)
◽
pp. 936-941
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Keyword(s):