Risto Korhonen

Difference analogue of the Lemma on the Logarithmic Derivative with applications to difference equations

Rod Halburd, Risto Korhonen · Journal of Mathematical Analysis and Applications · 2005 · 559 citations

Logarithmic Derivative, Difference Analogue, Difference Equations

Nevanlinna theory for the difference operator

Rod Halburd, Risto Korhonen · ArXiv.org · 2005 · 322 citations · Full text

Linear Operator, Classical Nevanlinna Theory, Resolvent Kernel +7

Holomorphic curves with shift-invariant hyperplane preimages

R. G. Halburd, Risto Korhonen, Kazuya Tohge · Transactions of the American Mathematical Society · 2014 · 238 citations · Full text

Riemann-hilbert Problem, Holomorphic Curves, Complex Geometry +6

Value sharing results for shifts of meromorphic functions, and sufficient conditions for periodicity

Janne Heittokangas, Risto Korhonen, Ilpo Laine et al. · Journal of Mathematical Analysis and Applications · 2009 · 185 citations

Meromorphic Functions, Riemann-hilbert Problem, Sufficient Conditions +4

Finite-order meromorphic solutions and the discrete Painlevé equations

Rod Halburd, Risto Korhonen · Proceedings of the London Mathematical Society · 2006 · 180 citations

Elliptic Equation, Riemann-hilbert Problem, Autonomous Versions +7