2 papers
math.SP2016
Selfadjoint and sectorial extensions of Sturm-Liouville operators
B. M. Brown, W. D. Evans
The self-adjoint and -sectorial extensions of coercive Sturm-Liouville operators are characterised, under minimal smoothness conditions on the coefficients of the differential e…
math.SP1997
On the spectrum of second order differential operators with complex coefficients
B. M. Brown, W. D. Evans, D. K. R. McCormack +1
The Weyl-Sims classification for a second-order ordinary differential equation with general complex coefficients is investigated. Connections are then established between the assoc…