Method of reflections for the Klein–Gordon equation
https://doi.org/10.29235/1561-8323-2022-66-3-263-268
Abstract
Using the method of reflections, the solutions of the first and second mixed problem for the homogenous Klein–Gordon equation in a quarter plane and of the first mixed problem for the homogenous Klein–Gordon equation in a halfstrip are written out in an explicit analytical form. The Cauchy conditions of these problems are inhomogeneous, but the Dirichlet boundary condition (or the Neumann boundary condition) is homogeneous. Conditions are formulated, under which the solutions to these problems are classical.
About the Authors
V. I. KorzyukBelarus
Korzyuk Viktor I. – Academician, D. Sc. (Physics and Ma thematics), Professor
11, Surganov Str., 220072, Minsk
J. V. Rudzko
Belarus
Rudzko Jan V. – M. Sc. (Mathematiсs and Computer Sciences)
4, Nezavisimosti Ave., 220030, Minsk
References
1. Bethe H. A., Jackiw R. Intermediate Quantum Mechanics. 3rd ed. Boulder: Westview Press, 1997. 416 p.
2. Bell J. Transmission Line Equation (Telegrapher’s Equation) and Wave Equations of Higher Dimension. 9 p. Available at: http://www.math.umbc.edu/~jbell/pde_notes/07_Telegrapher%20Equation.pdf (accessed 10 April 2022).
3. Vajiac M., Tolosa J. An Introduction to Partial Differential Equations in the Undergraduate Curriculum. Lecture 7: The Wave Equation. 16 p. Available at: https://www.math.hmc.edu/~ajb/PCMI/lecture7.pdf (accessed 10 April 2022).
4. Korzyuk V. I., Stolyarchuk I. I. Classical solution of the first mixed problem for the Klein–Gordon–Fock equation in a half-strip. Differential Equations, 2014, vol. 50, no. 8, pp. 1098–1111. https://doi.org/10.1134/s0012266114080084
5. Korzyuk V. I., Rudzko J. V. Classical solution of the first mixed problem for the telegraph equation with a nonlinear potential. Differential Equations, 2022, vol. 58, no. 2, pp. 175–186. https://doi.org/10.1134/S0012266122020045
6. Pikulin V. P., Pohozaev S. I. Equations in Mathematical Physics: A practical course. Basel, Springer, 2001. 207 p. https://doi.org/10.1007/978-3-0348-0268-0
7. Giusti A. Dispersive Wave Solutions of the Klein–Gordon equation in Cosmology. Università di Bologna, 2013. 64 p. Available at: http://amslaurea.unibo.it/6148/ (accessed 10 April 2022).
8. Grigoryan V. Waves on the half-line, 2011. Available at: http://web.math.ucsb.edu/~grigoryan/124A/lecs/lec13.pdf (accessed 10 April 2022).
9. Grigoryan V. Partial Differential Equations. Santa Barbara: Department of Mathematics, University of California, Santa Barbara, 2010. 96 p. Available at: https://web.math.ucsb.edu/~grigoryan/124A.pdf (accessed 10 April 2022).
10. Polyanin A. D. Handbook of linear partial differential equations for engineers and scientists. New York, Chapman & Hall/CRC, 2001. 667 p. https://doi.org/10.1201/9781420035322