ON THE NONEXISTENCE OF SOLUTIONS OF SOME ANISOTROPIC ELLIPTIC AND BACKWARD PARABOLIC INEQUALITIES Article Tsegaw B.B. Differential Equations. Vol. 51. 2015. P. 1607-1619
NONEXISTENCE OF GLOBAL SOLUTIONS FOR QUASILINEAR BACKWARD PARABOLIC INEQUALITIES WITH P-LAPLACE-TYPE OPERATOR Article Tsegaw B.B. Mathematical Notes. Vol. 97. 2015. P. 605-615
SOME NONEXISTENCE RESULTS FOR ANISOTROPIC ELLIPTIC AND BACKWARD PARABOLIC INEQUALITIES Article Tsegaw B.B. The Seventh International conference on differential and functional differential equations. Moscow, Russia, August 22-29, 2014.. РУДН. 2014. 119 p.