Nikolai Kutev

Control Properties for Heat Equation with Double Singular Potential

Tsviatko Rangelov, Nikolai Kutev, N. Kutev, 2021, Proceedings of the Bulgarian Academy of Sciences.

Gradient estimates, interior gradient blow ups and comparison principle of nonlinear pde’s

Nikolai Kutev, 2000 .

Strong maximum principle for semicontinuous viscosity solutions of nonlinear partial differential equations

Bernd Kawohl, Nikolai Kutev, B. Kawohl, 1998 .

Maximum and comparison principle for one-dimensional anisotropic diffusion

Bernd Kawohl, Nikolai Kutev, B. Kawohl, 1998 .