In fact, asymptotic and perturbation methods employ the presence of a small parameter in the problem, e.g., a small coefficient in the differential equation, to derive an approximate solution of the ...

Most mathematical models do not admit exact solutions. Asymptotic and perturbation methods provide powerful techniques for obtaining approximate solutions, which allow one to draw physical conclusions ...

Have you ever wondered how long it took our sun to form in its stellar nursery? An international collaboration of scientists ...