M. N. Yakovlev, “Existence of $2^n$ periodic solutions of a system of $n$ differential equations of first order”, Zap. Nauchn. Sem. POMI, 2002, Volume 284,Pages 247

Existence of $2^n$ periodic solutions of a system of $n$ differential equations of first order

M. N. Yakovlev

St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences

Abstract: Conditions sufficient for a system of $n$ first-order differential equations with deviating argument to be solvable and to have at least $2^n$ periodic solutions are obtained.

UDC: 519

Received: 15.01.2002