Published online by Cambridge University Press: 20 January 2009
This note contains an elementary proof of the well-known result that every solution of Besse's equation
with a real parameter n has an infinite number of real positive zeros.
page 17 note 1 Bôcher, M., Leçonn snr les Méthodes de Sturm (Paris, 1917), Ch. III. and IV.Google Scholar
page 17 note 1 MacRobert, T. M., Spherical Harmonics (London, 1927), 274.Google Scholar