DUMANYAN, V. Zh. ON THE ESTIMATION OF $\{|\triangledown u|^2dx$ FOR SOLUTIONS OF SECOND ORDER ELLIPTIC EQUATIONS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 42, n. 2 (216), p. 145–147, 2023. DOI: 10.46991/PYSU:A/2008.42.2.145. Disponível em: https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol42_no2_2008_p145-147. Acesso em: 23 nov. 2024.