Some results in the spectral theory of partial differential operators [Summary of the thesis in the] Fac. of mathemamitics and natural sciences of the Univ. of Lund..
| Основен автор: | Nilsson, Nils |
|---|---|
| Формат: | Книга |
| Език: | English |
| Публикувано: |
Lund
1965
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