Acknowledgement
This work was supported by the National Research Foundation of Korea(NRF) under agreement NRF-2019R1F1A1058826 and Pusan National University Research Grant, 2019.
References
- Jongkeun Choi, Seick Kim, and Kyungrok Lee, Gradient estimates for elliptic equations in divergence form with partial Dini mean oscillation coefficients, J. Korean Math. Soc. 57 (2020) (6), 1509-1533. https://doi.org/10.4134/JKMS.J190777
- Hongjie Dong, Gradient estimates for parabolic and elliptic systems from linear laminates, Arch. Ration. Mech. Anal. 205 (1) (2012), 119-149. https://doi.org/10.1007/s00205-012-0501-z
- Hongjie Dong, Luis Escauriaza, and Seick Kim, On C1, C2, and weak type-(1, 1) estimates for linear elliptic operators: part II, Math. Ann. 370 (1-2) (2018), 447-489. https://doi.org/10.1007/s00208-017-1603-6
- Hongjie Dong and Seick Kim, On C1, C2, and weak type-(1, 1) estimates for linear elliptic operators, Comm. Partial Differential Equations 42 (3) (2017), 417-435. https://doi.org/10.1080/03605302.2017.1278773
- Hongjie Dong, Jihoon Lee, and Seick Kim, On conormal and oblique derivative problem for elliptic equations with Dini mean oscillation coefficients, Indiana Univ. Math. J. 69 (6) (2020), 1815-1853. https://doi.org/10.1512/iumj.2020.69.8028
- Hongjie Dong and Zongyuan Li, Classical solutions of oblique derivative problem in nonsmooth domains with mean Dini coefficients, Trans. Amer. Math. Soc. 373 (7) (2020), 4975-4997. https://doi.org/10.1090/tran/8042
- Gary M. Lieberman. Holder continuity of the gradient of solutions of uniformly parabolic equations with conormal boundary conditions, Ann. Mat. Pura Appl. 148 (1987), 77-99. https://doi.org/10.1007/BF01774284