Left-definite theory with applications to orthogonal polynomials
Keywords: primary, 34B30, 47B25, 47B65; secondary, 33C65, 34B20Self-adjoint operator; Hilbert space; Sobolev space; Dirichlet inner product; Left-definite Hilbert space; Left-definite self-adjoint operator; Laguerre polynomials; Stirling numbers of the second kind;