343 citations
- Institute for Physical ResearchAM22 papers
- Moscow Institute of Physics and TechnologyRU10 papers
- A. Alikhanyan National LaboratoryAM9 papers
- Yerevan State UniversityAM9 papers
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- Dublin Institute For Advanced StudiesIE5 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP5 papers
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Showing 2019 · math.CAShow all
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math.CA2019★ 11 cited
Confluent hypergeometric expansions of the confluent Heun function governed by two-term recurrence relations
T. A. Ishkhanyan, V. P. Krainov, A. M. Ishkhanyan
We show that there exist infinitely many nontrivial choices of parameters of the single confluent Heun equation for which the three-term recurrence relations governing the expansio…
math.CA2019★ 6 cited
On the derivatives of the Heun functions
G. Filipuk, A. Ishkhanyan, J. Dereziński
The Heun functions satisfy linear ordinary differential equations of second order with certain singularities in the complex plane. The first order derivatives of the Heun functions…