On Some Correspondence between Holomorphic Functions in the Unit Disc and Holomorphic Functions in the Left Halfplane

Ewa Ligocka

Bulletin of the Polish Academy of Sciences. Mathematics (2009)

  • Volume: 57, Issue: 3, page 223-229
  • ISSN: 0239-7269

Abstract

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We study a correspondence L between some classes of functions holomorphic in the unit disc and functions holomorphic in the left halfplane. This correspondence is such that for every f and w ∈ ℍ, exp(L(f)(w)) = f(expw). In particular, we prove that the famous class S of univalent functions on the unit disc is homeomorphic via L to the class S(ℍ) of all univalent functions g on ℍ for which g(w+2πi) = g(w) + 2πi and l i m R e z - ( g ( w ) - w ) = 0 .

How to cite

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Ewa Ligocka. "On Some Correspondence between Holomorphic Functions in the Unit Disc and Holomorphic Functions in the Left Halfplane." Bulletin of the Polish Academy of Sciences. Mathematics 57.3 (2009): 223-229. <http://eudml.org/doc/281272>.

@article{EwaLigocka2009,
abstract = {We study a correspondence L between some classes of functions holomorphic in the unit disc and functions holomorphic in the left halfplane. This correspondence is such that for every f and w ∈ ℍ, exp(L(f)(w)) = f(expw). In particular, we prove that the famous class S of univalent functions on the unit disc is homeomorphic via L to the class S(ℍ) of all univalent functions g on ℍ for which g(w+2πi) = g(w) + 2πi and $lim_\{Re z→-∞\}(g(w)-w) = 0$.},
author = {Ewa Ligocka},
journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
keywords = {holomorphic functions; univalent functions},
language = {eng},
number = {3},
pages = {223-229},
title = {On Some Correspondence between Holomorphic Functions in the Unit Disc and Holomorphic Functions in the Left Halfplane},
url = {http://eudml.org/doc/281272},
volume = {57},
year = {2009},
}

TY - JOUR
AU - Ewa Ligocka
TI - On Some Correspondence between Holomorphic Functions in the Unit Disc and Holomorphic Functions in the Left Halfplane
JO - Bulletin of the Polish Academy of Sciences. Mathematics
PY - 2009
VL - 57
IS - 3
SP - 223
EP - 229
AB - We study a correspondence L between some classes of functions holomorphic in the unit disc and functions holomorphic in the left halfplane. This correspondence is such that for every f and w ∈ ℍ, exp(L(f)(w)) = f(expw). In particular, we prove that the famous class S of univalent functions on the unit disc is homeomorphic via L to the class S(ℍ) of all univalent functions g on ℍ for which g(w+2πi) = g(w) + 2πi and $lim_{Re z→-∞}(g(w)-w) = 0$.
LA - eng
KW - holomorphic functions; univalent functions
UR - http://eudml.org/doc/281272
ER -

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