This book focuses on the Frobenius theorem regarding a nonlinear simultaneous system. The Frobenius theorem is well known as a condition for a linear simultaneous system’s having a nonnegative solut……続きを見る
The growth of enterprises (SMEs) in the global market is a priority for economic growth in each nation. If SMEs want to keep alive, grow and develop in a global and dynamic environment must plan str……続きを見る
