Extension of the notion of “saddle point
✍
Luigi Amerio
📂
Article
📅
1953
🏛
John Wiley and Sons
🌐
English
⚖ 718 KB
Let us consider the differential equation (1) g(z, Y) f b , Y) dY = 0 and suppose that Po(zo , yo) is a singular point ( f ( z o , yo) = g(ro , yo) = O), more precisely a saddle point, i.e., that It is well known that, in this case, there whic.h pass through the point Po and separate 0. exist two i