The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
Displaying 541 –
560 of
1151
The problem of estimating the radius of starlikeness of various classes of close-to-convex functions has attracted a certain number of mathematicians involved in geometric function theory ([7], volume 2, chapter 13). Lewandowski [11] has shown that normalized close-to-convex functions are starlike in the disc . Krzyż [10] gave an example of a function , non-starlike in the unit disc , and belonging to the class H = f | f’() lies in the right half-plane. More generally let H* = f | f’() lies in...
In this paper we define a subclass of -uniform convex functions by using the S’al’agean differential operator and we obtain some properties of this class.
In this paper we discuss some subordination results for a subclass of functions analytic in the unit disk U
A relatively simple proof is given for Haimo's theorem that a meromorphic function with suitably controlled Schwarzian derivative is a concave mapping. More easily verified conditions are found to imply Haimo's criterion, which is now shown to be sharp. It is proved that Haimo's functions map the unit disk onto the outside of an asymptotically conformal Jordan curve, thus ruling out the presence of corners.
Currently displaying 541 –
560 of
1151