DIFFERENTIAL EQUATIONS WITH FIXED CRITICAL P0INTSnPart. II: Equations of the third order Part III I Equations of order four

摘要

1. This paper is the second part of a group of studies concerning differential equations with fixed critical points. We shall use the methods, notation, and terminologies employed in the first part denoted Part I where second order equations were considered. In particular, K with or without a subscript will denote a constant, not always the same.