We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
Conditions are given on the real coefficients p, q and r and the weight w, for the fourth order formally symmetric differential expression
to have the properties of being strong limit-2 and Dirichlet at ∞, when considered in the weighted Hilbert space, 
. These extend existing results due to both W. N. Everitt and V. Krishna Kumar and cover an expression which is important in the study of certain orthogonal polynomials.