Open AccessSome Remarks on Continuous Orthogonal Expansions, and Eigenfunction Expansions for Positive Self-Adjoint Elliptic Operators with Variable Coefficients.
Author(s) -
Jaake Peetre
Publication year - 1965
Publication title -
mathematica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.553
H-Index - 30
eISSN - 1903-1807
pISSN - 0025-5521
DOI - 10.7146/math.scand.a-10763
Subject(s) - mathematics , eigenfunction , variable (mathematics) , self adjoint operator , mathematical analysis , elliptic operator , constant coefficients , eigenvalues and eigenvectors , physics , quantum mechanics , hilbert space