Abstract
We note here that a technique of Oleinik for obtaining derivative estimates for degenerate second-order elliptic equations applies even to certain degenerate variational inequalities.
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References
J. L. Menaldi, On the optimal stopping time problem for degenerate diffusions, to appear in SIAM J. Control & Optimization.
O. A. Oleinik and E. V. Radkevic,Second Order Equations with Nonnegative Characteristic Form, American Mathematics Society: New York, 1973.
D. W. Stroock and S. R. S. Varadhan,Multidimensional Diffusion Processes, Springer-Verlag: New York, 1979.
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Communicated by J.-L. Lions
Supported in part by NSF Grant 77-01952; Alfred P. Sloan Fellow 1979–81.
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Evans, L.C., Menaldi, JL. Gradient bounds for solutions of degenerate variational inequalities. Appl Math Optim 7, 247–252 (1981). https://doi.org/10.1007/BF01442119
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DOI: https://doi.org/10.1007/BF01442119