This paper is available on arxiv under CC BY-NC-ND 4.0 DEED license.
Authors:
(1) U Jin Choi, Department of mathematical science, Korea Advanced Institute of Science and Technology & [email protected];
(2) Kyung Soo Rim, Department of mathematics, Sogang University & [email protected].
This section will set the mathematical model that is being addressed and provide basic background information relevant to understanding it.