00853nam0-22002531i-450-990001191730403321000119173FED01000119173(Aleph)000119173FED0100011917320000920d1987----km-y0itay50------baengSpectral Pertubations and Approximation with Numerical Experimentsby LIMAYE B. V.AustraliaAustralian National University1987Proceedings of the Centre for mathematical analysisAustralian national University13Limaye,Balmohan Vishnu56151ITUNINARICAUNIMARCBK990001191730403321C-40-(135250MA1MA1Spectral Pertubations and Approximation with Numerical Experiments341547UNINAING01