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Wirths, Karl-Joachim

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Author ID: wirths.karl-joachim Recent zbMATH articles by "Wirths, Karl-Joachim"
Published as: Wirths, Karl-Joachim; Wirths, K.-J.; Wirths, K. J.; Wirths, Karl Joachim; Wirths, Karl J.
Homepage: https://www.tu-braunschweig.de/iaa/personal/wirths
External Links: MGP
Documents Indexed: 120 Publications since 1971, including 5 Books
1 Further Contribution
Reviewing Activity: 139 Reviews
Biographic References: 1 Publication
Co-Authors: 26 Co-Authors with 95 Joint Publications
661 Co-Co-Authors
all top 5

Serials

7 Lobachevskii Journal of Mathematics
7 Computational Methods and Function Theory
5 Monatshefte für Mathematik
5 Results in Mathematics
5 Complex Variables. Theory and Application
5 The Journal of Analysis
4 Journal of Mathematical Analysis and Applications
4 Archiv der Mathematik
4 Mathematische Nachrichten
4 Bulletin of the Belgian Mathematical Society - Simon Stevin
3 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica
3 Mathematische Zeitschrift
3 Proceedings of the American Mathematical Society
3 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
3 Berichte der Gesellschaft für Mathematik und Datenverarbeitung, Bonn
2 Annales Polonici Mathematici
2 Constructive Approximation
2 Mathematica
2 Serdica Mathematical Journal
1 American Mathematical Monthly
1 Analysis Mathematica
1 Bulletin of the Australian Mathematical Society
1 IMA Journal of Numerical Analysis
1 Indian Journal of Pure & Applied Mathematics
1 Israel Journal of Mathematics
1 Mathematische Semesterberichte
1 Arkiv för Matematik
1 Bulletin of the London Mathematical Society
1 Canadian Mathematical Bulletin
1 Colloquium Mathematicum
1 Commentarii Mathematici Helvetici
1 Geometriae Dedicata
1 Indian Journal of Mathematics
1 Journal of Approximation Theory
1 The Journal of the Indian Mathematical Society. New Series
1 Journal of the London Mathematical Society. Second Series
1 Kodai Mathematical Journal
1 Mathematica Scandinavica
1 Mathematica Slovaca
1 Michigan Mathematical Journal
1 Proceedings of the Edinburgh Mathematical Society. Series II
1 Quaestiones Mathematicae
1 Siberian Mathematical Journal
1 Sibirskiĭ Matematicheskiĭ Zhurnal
1 Analysis
1 Bulletin of the Korean Mathematical Society
1 Bulletin of the Iranian Mathematical Society
1 Approximation Theory and its Applications
1 Revista Matemática Iberoamericana
1 Forum Mathematicum
1 Journal of Approximation Theory and its Applications
1 Russian Mathematics
1 Annales Academiae Scientiarum Fennicae. Mathematica
1 ZAMM. Zeitschrift für Angewandte Mathematik und Mechanik
1 Analysis (München)
1 Journal of the Australian Mathematical Society
1 Mediterranean Journal of Mathematics
1 Cubo
1 Complex Variables and Elliptic Equations
1 The College Mathematics Journal
1 Analysis and Mathematical Physics
1 Problemy Analiza. Issues of Analysis
1 Frontiers in Mathematics

Publications by Year

Citations contained in zbMATH Open

86 Publications have been cited 638 times in 341 Documents Cited by Year
Schwarz-Pick type inequalities. Zbl 1168.30001
Avkhadiev, Farit G.; Wirths, Karl-Joachim
47
2009
Unified Poincaré and Hardy inequalities with sharp constants for convex domains. Zbl 1145.26005
Avkhadiev, F. G.; Wirths, K.-J.
46
2007
On the Fekete-Szegö problem for concave univalent functions. Zbl 1202.30015
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
31
2011
Sharp Hardy-type inequalities with Lamb’s constant. Zbl 1237.26014
Avkhadiev, F. G.; Wirths, K.-J.
27
2011
Sharp inequalities for the coefficients of concave schlicht functions. Zbl 1210.30005
Avkhadiev, F. G.; Pommerenke, Ch.; Wirths, K.-J.
23
2006
Geometric studies on the class \(\mathcal U(\lambda)\). Zbl 1348.30009
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
22
2016
Coefficient characterizations and sections for some univalent functions. Zbl 1283.30047
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
21
2013
Weighted Hardy inequalities with sharp constants. Zbl 1254.26031
Avkhadiev, F. G.; Wirths, K.-J.
18
2010
A proof of the Livingston conjecture. Zbl 1109.30021
Avkhadiev, Farit G.; Wirths, Karl-Joachim
17
2007
Schwarz-Pick inequalities for derivatives of arbitrary order. Zbl 1018.30018
Avkhadiev, F. G.; Wirths, K.-J.
17
2003
Logarithmic coefficients and a coefficient conjecture for univalent functions. Zbl 1400.30027
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
17
2018
New inequalities for the coefficients of unimodular bounded functions. Zbl 1442.30003
Ponnusamy, Saminathan; Vijayakumar, Ramakrishnan; Wirths, Karl-Joachim
17
2020
Recognizing \(\mathfrak{Q}_{p,0}\) functions per Dirichlet space structure. Zbl 0989.30024
Wirths, K. J.; Xiao, J.
15
2001
On the coefficients of concave univalent functions. Zbl 1149.30013
Avkhadiev, Farit G.; Pommerenke, Christian; Wirths, Karl-Joachim
15
2004
Convex holes produce lower bounds for coefficients. Zbl 1028.30010
Avkhadiev, F. G.; Wirths, K.-J.
15
2002
Concave schlicht functions with bounded opening angle at infinity. Zbl 1071.30005
Avkhadiev, F. G.; Wirths, K.-J.
14
2005
On the problem of Gromova and Vasil’ev on integral means, and Yamashita’s conjecture for spirallike functions. Zbl 1295.30042
Ponnusamy, Saminathan; Wirths, Karl-Joachim
12
2014
A proof of Yamashita’s conjecture on area integral. Zbl 1283.30031
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
12
2013
Über totalmonotone Zahlenfolgen. Zbl 0313.30009
Wirths, Karl-Joachim
12
1975
An image-area inequality for some planar holomorphic maps. Zbl 0954.30017
Wirths, K. J.; Xiao, J.
11
2000
On extreme Bloch functions with prescribed critical points. Zbl 0482.30023
Ruscheweyh, Stephan; Wirths, Karl-Joachim
11
1982
Über holomorphe Funktionen, die einer Wachstumsbeschränkung unterliegen. Zbl 0373.30016
Wirths, Karl-Joachim
10
1978
On the best constants for the Brezis-Marcus inequalities in balls. Zbl 1259.26025
Avkhadiev, F. G.; Wirths, K. J.
10
2012
Global integral criteria for composition operators. Zbl 1015.30017
Wirths, K.-J.; Xiao, J.
8
2002
Schwarz-Pick inequalities for hyperbolic domains in the extended plane. Zbl 1066.30025
Avkhadiev, Farit G.; Wirths, Karl-Joachim
8
2004
The conformal radius as a function and its gradient image. Zbl 1096.30013
Avkhadiev, F. G.; Wirths, K.-J.
8
2005
Domains of variability of Laurent coefficients and the convex hull for the family of concave univalent functions. Zbl 1148.30006
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
8
2007
Integral means and Dirichlet integral for analytic functions. Zbl 1309.30019
Obradović, Milutin; Ponnusamy, S.; Wirths, Karl-Joachim
8
2015
Characterization and the pre-Schwarzian norm estimate for concave univalent functions. Zbl 1201.30008
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
7
2010
Bohr type inequalities for functions with a multiple zero at the origin. Zbl 1461.30004
Ponnusamy, S.; Wirths, K.-J.
6
2020
On the residuum of concave univalent functions. Zbl 1164.30355
Wirths, K.-J.
6
2006
Verallgemeinerungen eines Maximumprinzips. Zbl 0239.30013
Wirths, Karl-Joachim
6
1971
Improved Bohr’s phenomenon in quasi-subordination classes. Zbl 1475.30005
Ponnusamy, Saminathan; Vijayakumar, Ramakrishnan; Wirths, Karl-Joachim
6
2022
Coefficient problems on the class \(U(\lambda)\). Zbl 1427.30029
Ponnusamy, Saminathan; Wirths, Karl-Joachim
5
2018
Normal families of gap power series. Zbl 0623.30044
Ruscheweyh, St.; Wirths, K.-J.
5
1986
Punishing factors for finitely connected domains. Zbl 1094.30026
Avkhadiev, F. G.; Wirths, K.-J.
5
2006
Elementary considerations for classes of meromorphic univalent functions. Zbl 1401.30026
Ponnusamy, S.; Wirths, K.-J.
5
2018
Analogues to Landau’s inequality for nonvanishing bounded functions and for Bloch functions. Zbl 1421.30074
Kayumov, I. R.; Wirths, K.-J.
5
2019
Where is \(f (z) / f'(z)\) univalent? Zbl 1336.30018
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
4
2014
Subordination under concave univalent functions. Zbl 1129.30004
Avkhadiev, F. G.; Wirths, K.-J.
4
2007
A proof of the Livingston conjecture for the fourth and the fifth coefficient of concave univalent functions. Zbl 1058.30018
Wirths, Karl-Joachim
4
2004
Logarithmic coefficients of the inverse of univalent functions. Zbl 1404.30023
Ponnusamy, Saminathan; Sharma, Navneet Lal; Wirths, Karl-Joachim
4
2018
Extreme Bloch functions with many critical points. Zbl 0561.30023
Ruscheweyh, St.; Wirths, K. J.
4
1984
Coefficients problems for Bloch functions. Zbl 1430.30017
Kayumov, I. R.; Wirths, K.-J.
4
2019
Concave functions, Blaschke products, and polygonal mappings. Zbl 1224.30035
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
4
2009
Julia’s lemma and concave schlicht functions. Zbl 1074.30013
Wirths, Karl-Joachim
3
2005
Punishing factors for angles. Zbl 1072.30014
Avkhadiev, Farit G.; Wirths, Karl-Joachim
3
2003
Taylor coefficients of negative powers of schlicht functions. Zbl 1032.30017
Roth, Oliver; Wirths, Karl-Joachim
3
2001
Coefficient bounds for convex functions of bounded type. Zbl 0655.30014
Wirths, K.-J.
3
1988
On an extremal problem for bounded polynomials. Zbl 0602.41005
Ruscheweyh, Stephan; Wirths, Karl-Joachim
3
1985
Unbounded convex polygons, Blaschke products and concave schlicht functions. Zbl 1161.30006
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
3
2008
Über die Faltung schlichter Funktionen. II. (On the convolution of schlicht functions. II). Zbl 0235.30009
Ruscheweyh, Stephan; Wirths, Karl-Joachim
3
1973
Über die Koeffizienten spezieller schlichter Polynome. Zbl 0244.30013
Ruscheweyh, St.; Wirths, K.-J.
3
1973
Logarithmic coefficients problems in families related to starlike and convex functions. Zbl 1440.30004
Ponnusamy, Saminathan; Sharma, Navneet Lal; Wirths, Karl-Joachim
3
2020
On some problems of James Miller. Zbl 1218.30019
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
3
2010
Telescoping estimates for smooth series. Zbl 1309.26026
Wirths, Karl Joachim
2
2015
Semi-dual functions and nonvanishing entire functions. Zbl 0797.30007
Wirths, K.-J.
2
1992
On classes of meromorphic locally univalent functions defined by differential inequalities. Zbl 1439.30029
Lee, See Keong; Ponnusamy, Saminathan; Wirths, Karl-Joachim
2
2020
Duality for some large spaces of analytic functions. Zbl 1001.46014
Jarchow, H.; Montesinos, V.; Wirths, K. J.; Xiao, J.
2
2001
On an extremum problem for Bloch functions. Zbl 0786.30024
Wirths, Karl-Joachim
2
1993
The Koebe domain for concave univalent functions. Zbl 1045.91009
Wirths, Karl-Joachim
2
2003
Two new extremal properties of the Koebe-function. Zbl 0413.30017
Klouth, Richard; Wirths, K.-J.
2
1980
Poles near the origin produce lower bounds for coefficients of meromorphic univalent functions. Zbl 1061.30015
Avkhadiev, F. G.; Wirths, K.-J.
2
2004
Inequalities for the coefficients of meromorphic starlike functions with nonzero pole. Zbl 1303.30012
Bhowmik, Bappaditya; Wirths, Karl-Joachim
2
2014
On the sum of squares of the coefficients of Bloch functions. Zbl 1420.30015
Kayumov, I. R.; Wirths, K.-J.
2
2019
Sharp bounds for sums of coefficients of inverses of convex functions. Zbl 1147.30013
Avkhadiev, Farit G.; Wirths, Karl-Joachim
2
2007
A note on Re(f(z)/z) for univalent functions. Zbl 0701.30013
Wirths, Karl-Joachim
2
1989
On relations between the classes \(\mathcal {S}\) and \(\mathcal {U}\). Zbl 1362.30017
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
2
2016
On elementary bounds for \(\sum^{\infty}_{k=n}k^{-s}\). Zbl 1339.40003
Gräter, Joachim; Wirths, Karl-Joachim
1
2015
Punishing factors and Chua’s conjecture. Zbl 1129.30013
Avkhadiev, F. G.; Wirths, K.-J.
1
2007
Coefficient inequalities for Bloch functions. Zbl 1433.30060
Kayumov, I. R.; Wirths, K.-J.
1
2019
Inequalities of Carlson type for \(\alpha\)-Bloch functions. Zbl 1441.30049
Kayumov, I. R.; Wirths, Karl-Joachim
1
2020
On Landau’s type estimates for coefficients of univalent functions. Zbl 1468.30039
Kayumov, I. R.; Khammatova, D. M.; Wirths, K.-J.
1
2020
Image areas of functions in the Dirichlet type spaces and their Möbius invariant subspaces. Zbl 0878.30027
Wirths, Karl J.; Xiao, Jie
1
1996
On holomorphic functions satisfying \(| f(z)|(1 - | z|^ 2)\leq 1\) in the unit disc. Zbl 0484.30001
Wirths, Karl-Joachim
1
1982
Optimal recovery of the derivative of bounded analytic functions. Zbl 0519.30032
Rivlin, T. J.; Ruscheweyh, St.; Shaffer, D.; Wirths, K. J.
1
1983
A short proof of a theorem of Bertilsson by direct use of Loewner’s method. Zbl 1075.30501
Wirths, Karl-Joachim
1
2001
Koeffizientenabschätzungen für typisch-reelle Funktionen. Zbl 0467.30014
Asim, Mohammed Hakim; Wirths, Karl Joachim
1
1979
Bounds for the Taylor coefficients of locally univalent Bloch functions. Zbl 1020.30036
Wirths, K.-J.
1
2000
On a boundary-value problem for convex univalent functions. Zbl 0615.30010
Ruscheweyh, Stephan; Singh, Vikramatidya; Wirths, Karl-Joachim
1
1986
Starlike cases of the generalized Goodman conjecture. Zbl 1279.30010
Avkhadiev, F. G.; Wirths, K.-J.
1
2013
Bemerkungen zu einem Satz von Fejer. Zbl 0321.30006
Wirths, K.-J.
1
1975
Riemann’s mapping theorem for n-analytic functions. Zbl 0343.30007
Ruscheweyh, St.; Wirths, K.-J.
1
1976
The punishing factors for convex pairs are \(2^{n-1}\). Zbl 1147.30014
Avkhadiev, Farit G.; Wirths, Karl-Joachim
1
2007
Estimates of the derivatives of meromorphic maps from convex domains into concave domains. Zbl 1155.30003
Avkhadiev, Farit G.; Wirths, Karl-Joachim
1
2008
A sharp bound for the Schwarzian derivative of concave functions. Zbl 1267.30035
Bhowmik, Bappaditya; Wirths, Karl-Joachim
1
2012
Improved Bohr’s phenomenon in quasi-subordination classes. Zbl 1475.30005
Ponnusamy, Saminathan; Vijayakumar, Ramakrishnan; Wirths, Karl-Joachim
6
2022
New inequalities for the coefficients of unimodular bounded functions. Zbl 1442.30003
Ponnusamy, Saminathan; Vijayakumar, Ramakrishnan; Wirths, Karl-Joachim
17
2020
Bohr type inequalities for functions with a multiple zero at the origin. Zbl 1461.30004
Ponnusamy, S.; Wirths, K.-J.
6
2020
Logarithmic coefficients problems in families related to starlike and convex functions. Zbl 1440.30004
Ponnusamy, Saminathan; Sharma, Navneet Lal; Wirths, Karl-Joachim
3
2020
On classes of meromorphic locally univalent functions defined by differential inequalities. Zbl 1439.30029
Lee, See Keong; Ponnusamy, Saminathan; Wirths, Karl-Joachim
2
2020
Inequalities of Carlson type for \(\alpha\)-Bloch functions. Zbl 1441.30049
Kayumov, I. R.; Wirths, Karl-Joachim
1
2020
On Landau’s type estimates for coefficients of univalent functions. Zbl 1468.30039
Kayumov, I. R.; Khammatova, D. M.; Wirths, K.-J.
1
2020
Analogues to Landau’s inequality for nonvanishing bounded functions and for Bloch functions. Zbl 1421.30074
Kayumov, I. R.; Wirths, K.-J.
5
2019
Coefficients problems for Bloch functions. Zbl 1430.30017
Kayumov, I. R.; Wirths, K.-J.
4
2019
On the sum of squares of the coefficients of Bloch functions. Zbl 1420.30015
Kayumov, I. R.; Wirths, K.-J.
2
2019
Coefficient inequalities for Bloch functions. Zbl 1433.30060
Kayumov, I. R.; Wirths, K.-J.
1
2019
Logarithmic coefficients and a coefficient conjecture for univalent functions. Zbl 1400.30027
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
17
2018
Coefficient problems on the class \(U(\lambda)\). Zbl 1427.30029
Ponnusamy, Saminathan; Wirths, Karl-Joachim
5
2018
Elementary considerations for classes of meromorphic univalent functions. Zbl 1401.30026
Ponnusamy, S.; Wirths, K.-J.
5
2018
Logarithmic coefficients of the inverse of univalent functions. Zbl 1404.30023
Ponnusamy, Saminathan; Sharma, Navneet Lal; Wirths, Karl-Joachim
4
2018
Geometric studies on the class \(\mathcal U(\lambda)\). Zbl 1348.30009
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
22
2016
On relations between the classes \(\mathcal {S}\) and \(\mathcal {U}\). Zbl 1362.30017
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
2
2016
Integral means and Dirichlet integral for analytic functions. Zbl 1309.30019
Obradović, Milutin; Ponnusamy, S.; Wirths, Karl-Joachim
8
2015
Telescoping estimates for smooth series. Zbl 1309.26026
Wirths, Karl Joachim
2
2015
On elementary bounds for \(\sum^{\infty}_{k=n}k^{-s}\). Zbl 1339.40003
Gräter, Joachim; Wirths, Karl-Joachim
1
2015
On the problem of Gromova and Vasil’ev on integral means, and Yamashita’s conjecture for spirallike functions. Zbl 1295.30042
Ponnusamy, Saminathan; Wirths, Karl-Joachim
12
2014
Where is \(f (z) / f'(z)\) univalent? Zbl 1336.30018
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
4
2014
Inequalities for the coefficients of meromorphic starlike functions with nonzero pole. Zbl 1303.30012
Bhowmik, Bappaditya; Wirths, Karl-Joachim
2
2014
Coefficient characterizations and sections for some univalent functions. Zbl 1283.30047
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
21
2013
A proof of Yamashita’s conjecture on area integral. Zbl 1283.30031
Obradović, Milutin; Ponnusamy, Saminathan; Wirths, Karl-Joachim
12
2013
Starlike cases of the generalized Goodman conjecture. Zbl 1279.30010
Avkhadiev, F. G.; Wirths, K.-J.
1
2013
On the best constants for the Brezis-Marcus inequalities in balls. Zbl 1259.26025
Avkhadiev, F. G.; Wirths, K. J.
10
2012
A sharp bound for the Schwarzian derivative of concave functions. Zbl 1267.30035
Bhowmik, Bappaditya; Wirths, Karl-Joachim
1
2012
On the Fekete-Szegö problem for concave univalent functions. Zbl 1202.30015
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
31
2011
Sharp Hardy-type inequalities with Lamb’s constant. Zbl 1237.26014
Avkhadiev, F. G.; Wirths, K.-J.
27
2011
Weighted Hardy inequalities with sharp constants. Zbl 1254.26031
Avkhadiev, F. G.; Wirths, K.-J.
18
2010
Characterization and the pre-Schwarzian norm estimate for concave univalent functions. Zbl 1201.30008
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
7
2010
On some problems of James Miller. Zbl 1218.30019
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
3
2010
Schwarz-Pick type inequalities. Zbl 1168.30001
Avkhadiev, Farit G.; Wirths, Karl-Joachim
47
2009
Concave functions, Blaschke products, and polygonal mappings. Zbl 1224.30035
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
4
2009
Unbounded convex polygons, Blaschke products and concave schlicht functions. Zbl 1161.30006
Bhowmik, B.; Ponnusamy, S.; Wirths, K.-J.
3
2008
Estimates of the derivatives of meromorphic maps from convex domains into concave domains. Zbl 1155.30003
Avkhadiev, Farit G.; Wirths, Karl-Joachim
1
2008
Unified Poincaré and Hardy inequalities with sharp constants for convex domains. Zbl 1145.26005
Avkhadiev, F. G.; Wirths, K.-J.
46
2007
A proof of the Livingston conjecture. Zbl 1109.30021
Avkhadiev, Farit G.; Wirths, Karl-Joachim
17
2007
Domains of variability of Laurent coefficients and the convex hull for the family of concave univalent functions. Zbl 1148.30006
Bhowmik, Bappaditya; Ponnusamy, Saminathan; Wirths, Karl-Joachim
8
2007
Subordination under concave univalent functions. Zbl 1129.30004
Avkhadiev, F. G.; Wirths, K.-J.
4
2007
Sharp bounds for sums of coefficients of inverses of convex functions. Zbl 1147.30013
Avkhadiev, Farit G.; Wirths, Karl-Joachim
2
2007
Punishing factors and Chua’s conjecture. Zbl 1129.30013
Avkhadiev, F. G.; Wirths, K.-J.
1
2007
The punishing factors for convex pairs are \(2^{n-1}\). Zbl 1147.30014
Avkhadiev, Farit G.; Wirths, Karl-Joachim
1
2007
Sharp inequalities for the coefficients of concave schlicht functions. Zbl 1210.30005
Avkhadiev, F. G.; Pommerenke, Ch.; Wirths, K.-J.
23
2006
On the residuum of concave univalent functions. Zbl 1164.30355
Wirths, K.-J.
6
2006
Punishing factors for finitely connected domains. Zbl 1094.30026
Avkhadiev, F. G.; Wirths, K.-J.
5
2006
Concave schlicht functions with bounded opening angle at infinity. Zbl 1071.30005
Avkhadiev, F. G.; Wirths, K.-J.
14
2005
The conformal radius as a function and its gradient image. Zbl 1096.30013
Avkhadiev, F. G.; Wirths, K.-J.
8
2005
Julia’s lemma and concave schlicht functions. Zbl 1074.30013
Wirths, Karl-Joachim
3
2005
On the coefficients of concave univalent functions. Zbl 1149.30013
Avkhadiev, Farit G.; Pommerenke, Christian; Wirths, Karl-Joachim
15
2004
Schwarz-Pick inequalities for hyperbolic domains in the extended plane. Zbl 1066.30025
Avkhadiev, Farit G.; Wirths, Karl-Joachim
8
2004
A proof of the Livingston conjecture for the fourth and the fifth coefficient of concave univalent functions. Zbl 1058.30018
Wirths, Karl-Joachim
4
2004
Poles near the origin produce lower bounds for coefficients of meromorphic univalent functions. Zbl 1061.30015
Avkhadiev, F. G.; Wirths, K.-J.
2
2004
Schwarz-Pick inequalities for derivatives of arbitrary order. Zbl 1018.30018
Avkhadiev, F. G.; Wirths, K.-J.
17
2003
Punishing factors for angles. Zbl 1072.30014
Avkhadiev, Farit G.; Wirths, Karl-Joachim
3
2003
The Koebe domain for concave univalent functions. Zbl 1045.91009
Wirths, Karl-Joachim
2
2003
Convex holes produce lower bounds for coefficients. Zbl 1028.30010
Avkhadiev, F. G.; Wirths, K.-J.
15
2002
Global integral criteria for composition operators. Zbl 1015.30017
Wirths, K.-J.; Xiao, J.
8
2002
Recognizing \(\mathfrak{Q}_{p,0}\) functions per Dirichlet space structure. Zbl 0989.30024
Wirths, K. J.; Xiao, J.
15
2001
Taylor coefficients of negative powers of schlicht functions. Zbl 1032.30017
Roth, Oliver; Wirths, Karl-Joachim
3
2001
Duality for some large spaces of analytic functions. Zbl 1001.46014
Jarchow, H.; Montesinos, V.; Wirths, K. J.; Xiao, J.
2
2001
A short proof of a theorem of Bertilsson by direct use of Loewner’s method. Zbl 1075.30501
Wirths, Karl-Joachim
1
2001
An image-area inequality for some planar holomorphic maps. Zbl 0954.30017
Wirths, K. J.; Xiao, J.
11
2000
Bounds for the Taylor coefficients of locally univalent Bloch functions. Zbl 1020.30036
Wirths, K.-J.
1
2000
Image areas of functions in the Dirichlet type spaces and their Möbius invariant subspaces. Zbl 0878.30027
Wirths, Karl J.; Xiao, Jie
1
1996
On an extremum problem for Bloch functions. Zbl 0786.30024
Wirths, Karl-Joachim
2
1993
Semi-dual functions and nonvanishing entire functions. Zbl 0797.30007
Wirths, K.-J.
2
1992
A note on Re(f(z)/z) for univalent functions. Zbl 0701.30013
Wirths, Karl-Joachim
2
1989
Coefficient bounds for convex functions of bounded type. Zbl 0655.30014
Wirths, K.-J.
3
1988
Normal families of gap power series. Zbl 0623.30044
Ruscheweyh, St.; Wirths, K.-J.
5
1986
On a boundary-value problem for convex univalent functions. Zbl 0615.30010
Ruscheweyh, Stephan; Singh, Vikramatidya; Wirths, Karl-Joachim
1
1986
On an extremal problem for bounded polynomials. Zbl 0602.41005
Ruscheweyh, Stephan; Wirths, Karl-Joachim
3
1985
Extreme Bloch functions with many critical points. Zbl 0561.30023
Ruscheweyh, St.; Wirths, K. J.
4
1984
Optimal recovery of the derivative of bounded analytic functions. Zbl 0519.30032
Rivlin, T. J.; Ruscheweyh, St.; Shaffer, D.; Wirths, K. J.
1
1983
On extreme Bloch functions with prescribed critical points. Zbl 0482.30023
Ruscheweyh, Stephan; Wirths, Karl-Joachim
11
1982
On holomorphic functions satisfying \(| f(z)|(1 - | z|^ 2)\leq 1\) in the unit disc. Zbl 0484.30001
Wirths, Karl-Joachim
1
1982
Two new extremal properties of the Koebe-function. Zbl 0413.30017
Klouth, Richard; Wirths, K.-J.
2
1980
Koeffizientenabschätzungen für typisch-reelle Funktionen. Zbl 0467.30014
Asim, Mohammed Hakim; Wirths, Karl Joachim
1
1979
Über holomorphe Funktionen, die einer Wachstumsbeschränkung unterliegen. Zbl 0373.30016
Wirths, Karl-Joachim
10
1978
Riemann’s mapping theorem for n-analytic functions. Zbl 0343.30007
Ruscheweyh, St.; Wirths, K.-J.
1
1976
Über totalmonotone Zahlenfolgen. Zbl 0313.30009
Wirths, Karl-Joachim
12
1975
Bemerkungen zu einem Satz von Fejer. Zbl 0321.30006
Wirths, K.-J.
1
1975
Über die Faltung schlichter Funktionen. II. (On the convolution of schlicht functions. II). Zbl 0235.30009
Ruscheweyh, Stephan; Wirths, Karl-Joachim
3
1973
Über die Koeffizienten spezieller schlichter Polynome. Zbl 0244.30013
Ruscheweyh, St.; Wirths, K.-J.
3
1973
Verallgemeinerungen eines Maximumprinzips. Zbl 0239.30013
Wirths, Karl-Joachim
6
1971
all top 5

Cited by 318 Authors

44 Avkhadiev, Farit Gabidinovich
44 Wirths, Karl-Joachim
42 Ponnusamy, Saminathan
20 Bhowmik, Bappaditya
17 Nasibullin, Ramil Gaisa’evich
13 Obradović, Milutin
11 Sugawa, Toshiyuki
9 Kayumov, Il’giz Rifatovich
9 Ruscheweyh, Stephan
9 Sahoo, Swadesh Kumar
7 Chen, Shaolin
7 Shafigullin, Il’nar Kasyĭmovich
5 Allu, Vasudevarao
5 Arora, Vibhuti
5 Das, Nilanjan
5 Kazantsev, Andreĭ Vital’evich
5 Maharana, Sudhananda
5 Parveen, Firdoshi
5 Prajapat, Jugal Kishore
5 Rasila, Antti
5 Vasudevarao, Allu
5 Xu, Qinghua
4 Aksent’ev, Leonid Aleksandrovich
4 El-Fallah, Omar
4 Grahl, Jürgen
4 Li, Liulan
4 Liu, Taishun
4 Liu, Yang
4 Makarov, R. V.
4 Mejía, Diego Alejandro
4 Sharma, Navneet Lal
4 Stević, Stevo
4 Todorov, Pavel Georgiev
4 Tuneski, Nikola
4 Xiao, Jie
3 Adegani, Ebrahim Analouei
3 Agrawal, Sarita
3 Ahamed, Molla Basir
3 Akhmetova, A. N.
3 Ali, Md Firoz
3 Andrievskii, Vladimir V.
3 Arbeláez, Hugo
3 Chen, Zhihua
3 Cho, Nak Eun
3 Ebadian, Ali
3 Galanopoulos, Petros
3 Halder, Himadri
3 Kasten, Volker
3 Kowalczyk, Bogumiła
3 Laptev, Ari
3 Lecko, Adam
3 Liu, Mingsheng
3 Majee, Santana
3 Ohno, Rintaro
3 Wang, Jianfei
2 Ali, Rosihan Mohamed
2 Alimohammadi, Davood
2 Altinkaya, Şahsene
2 Arango, Juan H.
2 Bonk, Mario
2 Bulboacă, Teodor
2 Contreras, Manuel D.
2 Cruz, Lorena
2 El Ibbaoui, Mohamed
2 Fan, Jinhua
2 Gochhayat, Priyabrat
2 Graf, Sergey Yu.
2 Hamada, Hidetaka
2 Huang, Yong
2 Kargar, Rahim
2 Kellay, Karim
2 Khammatova, Diana M.
2 Kim, Seong-A
2 Kovařík, Hynek
2 Kumar, Shankey
2 Laitila, Jussi
2 Lam, Nguyen
2 Lu, Guozhen
2 Martín, María J.
2 Mehrez, Khaled
2 Merchán, Noel
2 Nasyrov, Semen R.
2 Orhan, Halit
2 Peng, Zhigang
2 Pommerenke, Christian
2 Prajapati, Anuja
2 Qiao, Jinjing
2 Ravichandran, Vaithiyanathan
2 Roth, Oliver
2 Salinas, Luis Carrasco
2 Schmieder, Gerald
2 Shabalin, Pavel Leonidovich
2 Srivastava, Hari Mohan
2 Tripathy, Binod Chandra
2 Vukotić, Dragan
2 Vuorinen, Matti Keijo Kustaa
2 Wang, Xiantao
2 Wang, Zhigang
2 Xiong, Liangpeng
2 Yamashita, Shinji
...and 218 more Authors
all top 5

Cited in 117 Serials

25 Journal of Mathematical Analysis and Applications
21 Lobachevskii Journal of Mathematics
21 Computational Methods and Function Theory
18 Russian Mathematics
11 Journal of Functional Analysis
9 Monatshefte für Mathematik
9 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
8 Proceedings of the American Mathematical Society
8 Complex Variables and Elliptic Equations
7 Results in Mathematics
7 Complex Analysis and Operator Theory
7 Analysis and Mathematical Physics
6 The Journal of Analysis
6 Ufimskiĭ Matematicheskiĭ Zhurnal
5 Journal d’Analyse Mathématique
5 Archiv der Mathematik
5 Acta Mathematica Sinica. English Series
5 Mediterranean Journal of Mathematics
5 Journal of Function Spaces
4 International Journal of Mathematics and Mathematical Sciences
4 Mathematische Nachrichten
4 Mathematische Zeitschrift
4 Journal of Mathematical Sciences (New York)
4 Journal of the Australian Mathematical Society
4 Journal of Classical Analysis
3 Israel Journal of Mathematics
3 Rocky Mountain Journal of Mathematics
3 Siberian Mathematical Journal
3 Zeitschrift für Analysis und ihre Anwendungen
3 Filomat
3 Abstract and Applied Analysis
3 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
3 Problemy Analiza. Issues of Analysis
2 Bulletin of the Australian Mathematical Society
2 Mathematical Notes
2 Advances in Mathematics
2 Czechoslovak Mathematical Journal
2 Integral Equations and Operator Theory
2 Journal of Computational and Applied Mathematics
2 Mathematica Slovaca
2 Michigan Mathematical Journal
2 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
2 Acta Mathematica Hungarica
2 Bulletin of the Iranian Mathematical Society
2 Revista Matemática Iberoamericana
2 Bulletin des Sciences Mathématiques
2 Journal of Inequalities and Applications
2 Communications of the Korean Mathematical Society
2 Comptes Rendus. Mathématique. Académie des Sciences, Paris
2 Frontiers of Mathematics in China
2 Journal of Mathematical Inequalities
2 Asian-European Journal of Mathematics
2 Annales Fennici Mathematici
1 Mathematische Semesterberichte
1 Russian Mathematical Surveys
1 Ukrainian Mathematical Journal
1 Arkiv för Matematik
1 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
1 Applied Mathematics and Computation
1 Collectanea Mathematica
1 Demonstratio Mathematica
1 Illinois Journal of Mathematics
1 Journal of Approximation Theory
1 Journal of the Korean Mathematical Society
1 Kodai Mathematical Journal
1 Mathematica Scandinavica
1 Proceedings of the Edinburgh Mathematical Society. Series II
1 Proceedings of the Japan Academy. Series A
1 Tamkang Journal of Mathematics
1 Tôhoku Mathematical Journal. Second Series
1 Transactions of the American Mathematical Society
1 Bulletin of the Korean Mathematical Society
1 Chinese Annals of Mathematics. Series B
1 Applied Mathematics Letters
1 Forum Mathematicum
1 The Journal of Geometric Analysis
1 Journal of Contemporary Mathematical Analysis. Armenian Academy of Sciences
1 Journal de Mathématiques Pures et Appliquées. Neuvième Série
1 Proceedings of the Indian Academy of Sciences. Mathematical Sciences
1 Expositiones Mathematicae
1 Indagationes Mathematicae. New Series
1 Annales de la Faculté des Sciences de Toulouse. Mathématiques. Série VI
1 Potential Analysis
1 Calculus of Variations and Partial Differential Equations
1 Applied and Computational Harmonic Analysis
1 St. Petersburg Mathematical Journal
1 Turkish Journal of Mathematics
1 Advances in Applied Clifford Algebras
1 Boletín de la Sociedad Matemática Mexicana. Third Series
1 Electronic Communications in Probability
1 Sbornik: Mathematics
1 Izvestiya: Mathematics
1 Annales Academiae Scientiarum Fennicae. Mathematica
1 Matematicheskie Trudy
1 Journal of Mathematical Fluid Mechanics
1 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. Mathematics and Statistics
1 Analysis (München)
1 Proceedings of the National Academy of Sciences, India. Section A. Physical Sciences
1 Bulletin of the Brazilian Mathematical Society. New Series
1 Vladikavkazskiĭ Matematicheskiĭ Zhurnal
...and 17 more Serials

Citations by Year