Ode, Differential Equations, Solutions, Physics, Mathematics.
doesn’t go that crazy at point x₀, and that’s the reason why we call it a “regular” singular point. Its singularity must be either a pole or an algebraic or logarithmic branch point [1]. As you learned before, e.g., if y(x) has an isolated pole at x₀, we cannot expand y(x) about x₀ as a Taylor