00535nam a2200145Ia 4500 260420b |||||||| |||| 00| 0 eng d 515.35 N147.LP Nagel, Alexander 21425 Lectures on pseudo differential operators; regularity theorems and applications to non-elliptic problems / New Jersey: Princeton University Press, 1979 159p. Mathematical notes no. 24 Stein, E. M. author. 21426 ddc BK 0 0 0 515_350000000000000_N147_LP 0 17322 ISI ISI 1998-09-25 0 515.35 N147.LP DP16451 2019-02-14 00:00:00 BK 14213 14213