01064nam0-22003611i-450-99000107032040332120090210174344.0000107032FED01000107032(Aleph)000107032FED0100010703220001205g19461958km-y0itay50------baengEigenfunction expansions associated with second-order differential equationsby E. C. TitchmarschOxfordClarendon Press1946-19582 v.25 cmApprossimazioni e sviluppiEquazioni differenziali517.37Titchmarsh,Edward Charles50936ITUNINARICAUNIMARCBK9900010703204033216-C-192605MA115-025669FI16-C-18490MA1MX-A-7464MASMA1FI1MAS41-01Eigenfunction expansions associated with second-order differential equations117673UNINA