Abstract
This work surveys results on the existence and asymptotic behavior of the fundamental solution for an elliptic operator L in nondivergence form, including recent results for operators whose coefficients are continuous with mild conditions on the modulus of continuity: if the square of the modulus of continuity satisfies the Dini condition, then there is an integral invariant which controls the behavior of solutions of L*u=0 and whether there is a fundamental solution for L that is asymptotic to the fundamental solution for the associated constant coefficient operator.
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To Vladimir Maz’ya for his 70th birthday
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© 2009 Birkhäuser Verlag Basel/Switzerland
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McOwen, R. (2009). On Elliptic Operators in Nondivergence and in Double Divergence Form. In: Cialdea, A., Ricci, P.E., Lanzara, F. (eds) Analysis, Partial Differential Equations and Applications. Operator Theory: Advances and Applications, vol 193. Birkhäuser Basel. https://doi.org/10.1007/978-3-7643-9898-9_13
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