Analytic semigroups in weighted $L_1$-spaces on the half-line generated by singular or degenerate operators

Patrick Guidotti, Philippe Laurençot, Christoph Walker

Ranges of the real-valued parameters $\alpha$, $a$, $b$, and $m$ are identified for which the operator $$\mathcal{A}_α(a,b)f(x):=x^α\left(f''(x)+\frac{a}{x}f'(x)+\frac{b}{x^2}f(x)\right…