Title of article :
Angular and unrestricted limits of one-parameter semigroups in the unit disk
Author/Authors :
Gumenyuk، نويسنده , , Pavel، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2014
Abstract :
We study local boundary behaviour of one-parameter semigroups of holomorphic functions in the unit disk. Earlier, under some additional condition (the position of the Denjoy–Wolff point) it was shown in [13] that elements of one-parameter semigroups have angular limits everywhere on the unit circle and unrestricted limits at all boundary fixed points. We prove stronger versions of these statements with no assumption on the position of the Denjoy–Wolff point. In contrast to many other problems, in the question of existence for unrestricted limits it appears to be more complicated to deal with the boundary Denjoy–Wolff point (the case not covered in [13]) than with all the other boundary fixed points of the semigroup.
Keywords :
Koenigs function , Equicontinuity , Holomorphic dynamics in the disk , One-parameter semigroup , Evolution family , Non-tangential limit , Unrestricted limit , Angular limit , Boundary fixed point , Denjoy–Wolff point
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications