A remark on differentiability properties of solutions of some elliptic equations
A class of nondivergence unifrmly elliptic equations with measurable coefficients is studied. The oscillation of the coefficients near a Lebesgue point is assumed to be controlled by increasing functions satisfying Dini's condition.
Under this assumption, slightly weaker than that of L. A. Caffarelli , a pointwise estimate for "good solutions" is established and related second order differentiability properties are pointed out.
The authors retain all rights to the original work without any restrictions.
License for Published Contents
"Le Matematiche" published articlesa are distribuited with Creative Commons Attribution 4.0 International. You are free to copy, distribute and transmit the work, and to adapt the work. You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
License for Metadata
"Le Matematiche" published articles metadata are dedicated to the public domain by waiving all publisher's rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
No Fee Charging
No fee is required to complete the submission/review/publishing process of authors paper.