Janne Heittokangas - Concepedia

Author

Janne Heittokangas

Also Known As

Heittokangas, J., Heittokangas, Janne, Heittokangas, Janne M., J. HEITTOKANGAS, J. Heittokangas, JANNE HEITTOKANGAS, Janne Heittokangas, Janne M. Heittokangas

Publications

1.2K

Citations

H-Index

Concepts

All Affiliations

Joensuu Science Park University of Eastern Finland University of New Orleans Lviv Polytechnic National University Taiyuan University of Technology

About

Janne Heittokangas is an author at Joensuu Science Park specializing in functional analysis, numerical analysis, and stability.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Functional Analysis	5	5	386
2	Numerical Analysis	2	2	65
3	Spectral Theory	1	1	26
4	Stability	1	1	12

Janne Heittokangas

Publications

1.1K

Citations

H-Index

Page 1

	Year	Citations
Value sharing results for shifts of meromorphic functions, and sufficient conditions for periodicity Janne Heittokangas, Risto Korhonen, Ilpo Laine, Journal of Mathematical Analysis and Applications Meromorphic FunctionsRiemann-hilbert ProblemSufficient ConditionsAnalytic Number TheoryFunction Theory	2009	185
Complex Difference Equations of Malmquist Type Janne Heittokangas, Risto Korhonen, Ilpo Laine, Computational Methods and Function Theory Oscillation TheoryComplex Difference EquationsIntegrable System	2001	123
Uniqueness of meromorphic functions sharing values with their shifts Janne Heittokangas, Risto Korhonen, Ilpo Laine, Complex Variables and Elliptic Equations Meromorphic FunctionsShared Value ProblemsAnalytic Number TheoryFunction TheoryShift F	2010	116
Linear Differential Equations and Logarithmic Derivative Estimates Igor Chyzhykov, Gary G. Gundersen, Janne Heittokangas Proceedings of the London Mathematical Society Sharp InequalitiesRiemann-hilbert ProblemLinear Differential EquationsUnit DiskNonlinear Equation	2003	92
GROWTH ESTIMATES FOR SOLUTIONS OF LINEAR COMPLEX DIFFERENTIAL EQUATIONS Janne Heittokangas, Risto Korhonen, Jouni Rättyä	2004	72
Meromorphic solutions of generalized Schröder equations Gary G. Gundersen, Janne Heittokangas, Ilpo Laine, Aequationes Mathematicae Lie Point SymmetryElliptic EquationMeromorphic SolutionsIntegrable System	2002	57
Fast Growing Solutions of Linear Differential Equations in the Unit Disc Janne Heittokangas, Risto Korhonen, Jouni Rättyä Results in Mathematics Numerical AnalysisSingularly Perturbed ProblemLinear Differential EquationsOscillation TheoryGeometric Singular Perturbation Theory	2006	49
Linear differential equations with coefficients in weighted Bergman and Hardy spaces Janne Heittokangas, Risto Korhonen, Jouni Rättyä Transactions of the American Mathematical Society	2007	45
Exponential polynomials as solutions of certain nonlinear difference equations Zhi Tao Wen, Janne Heittokangas, Ilpo Lain Acta Mathematica Sinica English Series Oscillation TheoryNonlinear EquationExponential PolynomialsNonlinear Functional Analysis	2012	39
Linear Differential Equations with Solutions in the Dirichlet Type Subspace of the Hardy Space Janne Heittokangas, Risto Korhonen, Jouni Rättyä Nagoya Mathematical Journal Linear Differential EquationElliptic EquationDirichlet FormResolvent KernelDirichlet Type Subspace	2007	34

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