 Nikolay Gur'yevich Chetaev

Nikolay Gur'yevich Chetaev, often referred to as Nikolay Chetaev, is a notable figure in the field of mathematics, specifically in the area of mathematical analysis and control theory. He is recognized for his contributions to various mathematical disciplines, including differential equations and dynamical systems. His work often involves the study of stability and control in nonlinear systems.