Generation and removal of apparent singularities in linear ordinary differential equations with polynomial coefficients
@article{Slavyanov2016GenerationAR, title={Generation and removal of apparent singularities in linear ordinary differential equations with polynomial coefficients}, author={Sergey Slavyanov and Daria Satco and Artur M. Ishkhanyan and T. A. Rotinyan}, journal={Theoretical and Mathematical Physics}, year={2016}, volume={189}, pages={1726-1733} }
We discuss several examples of generating apparent singular points as a result of differentiating particular homogeneous linear ordinary differential equations with polynomial coefficients and formulate two general conjectures on the generation and removal of apparent singularities in arbitrary Fuchsian differential equations with polynomial coefficients. We consider a model problem in polymer physics.
11 Citations
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References
SHOWING 1-10 OF 14 REFERENCES
Removing false singular points as a method of solving ordinary differential equations
- MathematicsEuropean Journal of Applied Mathematics
- 2002
A general formalism is described whereby some regular singular points are effectively removed and substantial simplifications ensue for a class of Fuchsian ordinary differential equations, and…
Special Functions: A Unified Theory Based on Singularities
- Mathematics
- 2000
Preface 1. Linear Second-order ODE with Polynomial Coefficients 2. The Hypergeometric Class of Equations 3. The Heun Class of Equations 4. Application to Physical Sciences 5. The Painleve Class of…
Euler integral symmetries for a deformed Heun equation and symmetries of the Painlevé PVI equation
- Mathematics
- 2008
Euler integral transformations relate solutions of ordinary linear differential equations and generate integral representations of the solutions in a number of cases or relations between solutions of…
New solutions of Heun general equation
- Mathematics
- 2003
We show that in four particular cases the derivative of the solution of Heun general equation can be expressed in terms of a solution to another Heun equation. Starting from this property, we use the…
Polynomial degree reduction of a Fuchsian 2×2 system
- Mathematics
- 2015
A Fuchsian 2 × 2 system generating the Painlevé equation P6 is acted on by a polynomial transformation similar to rotation in order to reduce the polynomial degree of matrices in the left- and the…
Expansions of the solutions of the confluent Heun equation in terms of the incomplete Beta and the Appell generalized hypergeometric functions
- Mathematics
- 2015
We construct several expansions of the solutions of the confluent Heun equation in terms of the incomplete Beta functions and the Appell generalized hypergeometric functions of two variables of the…
Antiquantization of deformed Heun-class equations
- Mathematics
- 2016
We consider deformed Heun-class equations, i.e., equations of the Heun class with an added apparent singularity. We prove that each deformed Heun-class equation under antiquantization realizes a…
Antiquantization of deformed Heun-class equations
- MathematicsTheoretical and Mathematical Physics
- 2016
We consider deformed Heun-class equations, i.e., equations of the Heun class with an added apparent singularity. We prove that each deformed Heun-class equation under antiquantization realizes a…
NEW RELATIONS FOR THE DERIVATIVE OF THE CONFLUENT HEUN FUNCTION
- Physics, Mathematics
- 2012
The cases when the equation for the derivative of the confluent Heun function has only three singularities (in general, the equation has four such points) are examined. It is shown that this occurs…
Single polymer dynamics in elongational flow and the confluent Heun equation
- Physics
- 2006
We investigate the non-equilibrium dynamics of an isolated polymer in a stationary elongational flow. We compute the relaxation time to the steady-state configuration as a function of the Weissenberg…