JOUNI RäTTYä

Contact info

Research groups - UEF

• 
  Complex Analysis

Publications

• Chyzhykov, I.; Gröhn, J.; Heittokangas, J.; Rättyä, J.. 2022. Oscillation of Solutions of LDE¿s in Domains Conformally Equivalent to Unit Disc Journal of geometric analysis 32 3: 71. 2022
• Liu, Bin; Rattya, Jouni; Wu, Fanglei. 2021. Compact Differences of Composition Operators on Bergman Spaces Induced by Doubling Weights Journal of geometric analysis 31 12: 12485-12500. 2021
• Peláez, José Ángel; Rättyä, Jouni. 2021. Bergman projection induced by radial weight Advances in mathematics 391: 107950. 2021
• Chyzhykov, Igor; Filevych, Petro; Rättyä, Jouni. 2021. Generalization of Proximate Order and Applications Computational methods and function theory [Epub ahead of print 26 Aug 2021]: 1-26. 2021
• Aulaskari, Rauno; Makhmutov, Shamil; Rättyä, Jouni. 2020. Hyperbolically Close to Q^{#}_{p}-sequences Bulletin of the korean mathematical society 57 1: 133-138. 2020
• Korhonen, Taneli; Pelaez, Jose Angel; Rättyä, Jouni. 2020. Radial Two Weight Inequality for Maximal Bergman Projection Induced by a Regular Weight Potential analysis 2021; 54 3: 561-574. 2020
• Liu, Bin; Rättyä, Jouni. 2020. Closure of bergman and dirichletspaces in the bloch norm Annales academiae scientiarum fennicae-mathematica 45 2: 771-783. 2020
• Liu, Bin; Rättyä, Jouni. 2020. Compact differences of weighted composition operators Collectanea mathematica 2022; 73 1: 89-105. 2020
• Makhmutov, Shamil ; Rättyä, Jouni ; Vesikko, Toni. 2020. Growth estimates for meromorphic solutions of higher order algebraic differential equations Tohoku mathematical journal 72 4: 621-629. 2020
• Peláez, JÁ; Rättyä, J. 2020. Harmonic conjugates on Bergman spaces induced bydoubling weights Analysis and mathematical physics 10 2: 18. 2020
• Peláez, JÁ; Rättyä, J; Wick, BD. 2019. Bergman projection induced by kernel with integral representation Journal d analyse mathematique 138 1: 325-360. 2019
• Pelaez, Jose Angel; Perälä, Antti; Rättyä, Jouni. 2019. Hankel operators induced by radial Bekollé-Bonami weights on Bergman spaces Mathematische zeitschrift [Published online: 07 Nov 2019]: 1-28. 2019
• Korhonen, Taneli; Peláez, José Ángel; Rättyä, Jouni. 2019. Radial averaging operator acting on Bergman and Lebesgue spaces Forum mathematicum 31 4: 1051-1068. 2019
• Korhonen, Taneli; Rättyä, Jouni. 2019. Zero sequences, factorization and sampling measures for weighted Bergman spaces Mathematische zeitschrift 291 3-4: 1145-1173. 2019
• Angel Pelaez, Jose; Rättyä, Jouni; Sierra, Kian. 2019. Atomic Decomposition and Carleson Measures for Weighted Mixed Norm Spaces Journal of geometric analysis [Published: 18 October 2019]: 1-33. 2019
• Gröhn, Janne; Huusko, Juha-Matti; Rättyä, Jouni. 2018. Linear differential equations with slowly growing solutions Transactions of the American Mathematical Society 370 10: 7201-7227. 2018
• Gröhn, Janne; Nicolau, Artur; Rättyä, Jouni. 2018. Mean growth and geometric zero distribution of solutions of linear differential equations. Journal d'Analyse Mathématique 134 2: 747-768. 2018
• Peláez JÁ, Rättyä J, Sierra K. 2017. Berezin Transform and Toeplitz Operators on Bergman Spaces Induced by Regular Weights. Journal of Geometric Analysis 2018; 28 1: 656-687. 2017
• Pérez-González Fernando, Rättyä Jouni, Reijonen Atte. 2017. Derivatives of Inner Functions in Bergman Spaces Induced by Doubling Weights. Annales Academiae Scientiarum Fennicae Mathematica 42: 735-753. 2017
• Perälä Antti, Rättyä Jouni. 2017. Duality of weighted Bergman spaces with small exponents. Annales Academiae Scientiarum Fennicae Mathematica 42: 621-626. 2017
• Pelaez Jose Angel, Rättyä Jouni. 2016. On the Boundedness of Bergman Projection. In: Francisco Javier Martín-Reyes, Pedro Ortega Salvador, María Lorente, Cristóbal González (ed.) , Advanced Courses of Mathematical Analysis VI, Proceedings of the Sixth International School, VI International Course of Mathematical Analysis in Andalusia, Universidad de Málaga, Spain, 8 - 12 September 2014. World scientific. s. 113-132. 2016
• Pérez-González Fernando, Rättyä Jouni. 2016. Derivatives of Inner Functions in Weighted Bergman Spaces and the Schwarz-Pick Lemma. Proceedings of the American Mathematical Society [Epub ahead of print 21 Nov 2016]: 1-12. 2016
• Ángel Peláez José, Rättyä Jouni. 2016. Trace class criteria for Toeplitz and composition operators on small Bergman spaces. Advances in Mathematics 293: 606-643. 2016
• Gröhn Janne, Rättyä Jouni. 2016. On Oscillation of Solutions of Linear Differential Equations. Journal of Geometric Analysis [Epub ahead of print 14 March 2016]: 1-18. 2016
• Contreras Manuel D, Peláez José A, Pommerenke Christian, Rättyä Jouni. 2016. Integral operators mapping into the space of bounded analytic functions. Journal of Functional Analysis 271 10: 2899-2943. 2016
• Peláez José Ángel, Rättyä Jouni, Sierra Kian. 2015. Embedding Bergman spaces into tent spaces. Mathematische Zeitschrift 281 3: 1215-1237. 2015
• Peláez José Ángel, Rättyä Jouni. 2015. Two weight inequality for Bergman projection. Journal de Mathématiques Pures et Appliquées 2016; 105 1: 102-130. 2015
• Peláez José-Angel, Pérez-González Fernando, Rättyä Jouni. 2014. Operator theoretic differences between Hardy and Dirichlet type spaces. JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS 418 1: 387-402. 2014
• Peláez José-Angel, Rättyä Jouni. 2014. Weighted Bergman spaces induced by rapidly increasing weights. Memoirs of the American Mathematical Society 227 1066: 1-124. 2014
• Peláez José Angel, Rättyä Jouni. 2014. Embedding theorems for Bergman spaces via harmonic analysis. Mathematische Annalen Epub: -. 2014
• Gröhn Janne, Peláez José Ángel, Rättyä Jouni. 2014. Jointly maximal products in weighted growth spaces. Annales Academiae Scientiarum Fennicae. Mathematica 39: 109-118. 2014
• Fenton Peter, Gröhn Janne, Heittokangas Janne, Rossi John, Rättyä Jouni. 2014. On alpha-Polynomial Regular Functions, with Applications to Ordinary Differential Equations. Proceedings of the Edinburgh Mathematical Society 57 02: 405-421. 2014
• Aulaskari R, Rättyä J. 2013. Inclusion Relations for New Function Spaces on Riemann Surfaces. Canadian Mathematical Bulletin 56: 466-476. 2013
• Aulaskari Rauno, Rättyä Jouni. 2013. Maximal property of the capacity density Bloch space for Hq Qp on Riemann surfaces. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS - Published online: 28 Mar 2013: -. 2013
• Chuaqui Martin, Gröhn Janne, Heittokangas Janne, Rättyä Jouni. 2013. Zero separation results for solutions of second order linear differential equations. Advances in Mathematics 245: 382-422. 2013
• Gallardo-Gutiérrez Eva A, González María J, Pérez-González Fernando, Pommerenke Christian, Rättyä Jouni. 2013. Locally univalent functions, VMOA and the Dirichlet space. Proceedings of the London Mathematical Society 106: 565-588. 2013
• Peláez Jose Angel, Rättyä Jouni. 2013. Generalized Hilbert operators on weighted Bergman spaces. Advances in Mathematics 240: 227-267. 2013
• Heittokangas Janne, Rättyä Jouni. 2011. Zero distribution of solutions of complex linear differential equations determines growth of solutions. Mathematische Nachrichten 284: 412-420. 2011
• Pérez-González Fernando, Rättyä Jouni. 2011. Univalent functions in the Möbius invariant Q_K space Abstract and Applied Analysis 2011: -. 2011
• Pérez-González Fernando, Rättyä Jouni, Taskinen Jari. 2011. Lipschitz continuous and compact composition operators in hyperbolic classes. Mediterranean Journal of Mathematics 8: 123-135. 2011
• Aulaskari Rauno, Makhmutov Shamil, Rättyä Jouni. 2011. Counterexamples on non-α-normal functions with good integrability New York Journal of Mathematics 17a: 165-175. 2011
• Chuaqui Martin, Gröhn Janne, Rättyä Jouni. 2011. Generalized Schwarzian derivatives and higher order differential equations. Mathematical Proceedings of the Cambridge Philosophical Society 151: 339-354. 2011
• Chuaqui Martin, Gröhn Janne, Heittokangas Janne, Rättyä Jouni. 2011. Possible Intervals for T- and M-Orders of Solutions of Linear Differential Equations in the Unit Disc Abstract and Applied Analysis 2011: -. 2011
• Aulaskari Rauno, Rättyä Jouni. 2011. Properties of meromorphic φ-normal functions. Michigan Mathematical Journal 60: 93-111. 2011
• I. Chyzhykov, J. Heittokangas, J. Rättyä. 2010. Sharp logarithmic derivative estimates with applications to ordinary differential equations in the unit disc. Journal of the Australian Mathematical Society 88 2: 145-167. 2010
• Rauno Aulaskari, Shamil Makhmutov, Jouni Rättyä. 2010. Weighted Yosida functions. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS 55: 167-172. 2010
• Fernando Pérez-González and Jouni Rättyä. 2009. Inner functions in the Möbius invariant Besov-type spaces. Proceedings of the Edinburgh Mathematical Society 52: 751¿770. 2009
• Fernando Pérez-González ja Jouni Rättyä. 2009. Dirichlet and VMOA domains via Schwarzian derivative. Journal of Mathematical Analysis and Applications 359: 543-546. 2009
• I. Chyzhykov, J. Heittokangas, J. Rättyä. 2009. Finiteness of φ order of solutions of linear differential equations in the unit disc. Journal d'analyse mathématique 109: 163-198. 2009
• Janne Heittokangas, Risto Korhonen ja Jouni Rättyä. 2009. Growth estimates for solutions of nonhomogeneous linear complex differential equations Annales Academiae Scientiarum Fennicae. Mathematica 34: 145-156. 2009
• Jukka Kekäläinen, J. Albert Vallunen, Craig R. Primmer, Jouni Rättyä and Jouni Taskinen. 2009. Signals of major histocompatibility complex overdominance in a wild salmonid population. Proceedings of the Royal Society B. Biological Sciences 276: 3133-3140. 2009
• R. Aulaskari, S. Makhmutov and J. Rättyä. 2009. New characterizations of the meromorphic Besov, Q_p and related classes. Bulletin of the Australian Mathematical Society 79: 49-58. 2009
• Rauno Aulaskari and Jouni Rättyä. 2009. Nevanlinna class contains functions whose spherical derivatives grow arbitrarily fast. Annales Academiae Scientiarum Fennicae. Mathematica 34: 387-390. 2009
• Rauno Aulaskari, Shamil Makhmutov and Jouni Rättyä. 2009. Results on meromorphic φ-normal functions COMPLEX VARIABLES AND ELLIPTIC EQUATIONS 54 9: 855-863. 2009
• Risto Korhonen, Jouni Rättyä. 2009. Finite order solutions of linear differential equations in the unit disc. Journal of Mathematical Analysis and Applications 349 1: 43-54. 2009
• Marko Kotilainen, Visa Latvala, and Jouni Rättyä. 2008. Carleson measures and conformal self-mappings in the real unit ball Mathematische Nachrichten 281 11: 1582-1589. 2008
• Marko Kotilainen, Jouni Rättyä. 2008. The essential norm of a composition operator mapping into Q[sub K] type spaces. Journal of Function Spaces and Applications 6 3: 241-258. 2008
• Janne Heittokangas, Risto Korhonen, Jouni Rättyä. 2008. Linear differential equations with coefficients in weighted Bergman and Hardy spaces Transactions of the American Mathematical Society 360 2: 1035-1055. 2008
• Fernando Pérez-González, Jouni Rättyä. 2008. Univalent functions in Hardy, Bergman, Bloch and related spaces. Journal d'analyse mathématique 105: 125-148. 2008
• Daniel Girela, José Ángel Peláez, Fernando Pérez-Gonzélez, Jouni Rättyä. 2008. Carleson measures for the Bloch space. Integral Equations and Operator Theory 61 4: 511-547. 2008
• F. Pérez-González, J. Rättyä, D. Vukotic. 2007. On composition operators acting between Hardy and weighted Bergman spaces. Expositiones mathematicae 25 4: 309-323. 2007
• J. Heittokangas, R. Korhonen, J. Rättyä. 2007. Linear differential equations with solutions in Dirichlet type subspace of the Hardy space. Nagoya Mathematical Journal 187: 91-113. 2007
• Jouni Rättyä. 2007. Integration operator acting on Hardy and weighted Bergman spaces. Bulletin of the Australian Mathematical Society 75 3: 431-446. 2007
• Jouni Rättyä. 2007. Linear differential equations with solutions in the Hardy space. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS 52 9: 785-795. 2007
• Jouni Rättyä. 2007. The essential norm of a composition operator mapping into the Q[sub s] space. Journal of Mathematical Analysis and Applications 333 2: 787-797. 2007
• Risto Korhonen, Jouni Rättyä. 2007. Linear differential equations in the unit disc with analytic solutions of finite order. Proceedings of the American Mathematical Society 135 5: 1355-1363. 2007
• Fernando Pérez-González, Jouni Rättyä. 2006. Forelli-Rudin estimates, Carleson measures, and F(p,q,s)-functions Journal of Mathematical Analysis and Applications 315 2: 394-414. 2006
• Janne Heittokangas, Risto Korhonen, Jouni Rättyä. 2006. Fast growing solutions of linear differential equations in the unit disc. Results in Mathematics 49 3/4: 265-278. 2006
• Xiaonan Li, Fernando Pérez-González, Jouni Rättyä. 2006. Composition operators in hyperbolic Q-classes. Annales Academiae Scientiarum Fennicae. Mathematica 31 2: 391-404. 2006
• Risto Korhonen, Jouni Rättyä. 2005. Intersections and unions of weighted Bergman spaces. Computational Methods and Function Theory 5 2: 459-469. 2005
• J. Heittokangas, R. Korhonen, J. Rättyä. 2004. Generalized logarithmic derivative estimates of Gol'dberg-Grinshtein type. Bulletin of the London Mathematical Society 36 1: 105-114. 2004
• J. Heittokangas, R. Korhonen, J. Rättyä. 2004. Growth estimates for solutions of linear complex differential equations. Annales Academiae Scientiarum Fennicae. Mathematica 29 1: 233-246. 2004
• J. Rättyä. 2003. N-th derivative characterisations, mean growth of derivatives and F(p,q,s). Bulletin of the Australian Mathematical Society 68 3: 405-421. 2003
• Jouni Rättyä. 2001. On some complex function spaces and classes. Suomalainen tiedeakatemia. Annales Academiae Scientiarum Fennicae. Mathematica. Dissertationes. 2001