In the spectral theory of random Schrödinger operators, he introduced the class of metrically transitive operators, and discovered several fundamental properties of this class.[6] Together with Ilya Goldsheid and Stanislav Molchanov, he established Anderson localization for a class of one-dimensional self-adjoint operators with random potentials;[7] this was the first mathematically rigorous proof of Anderson localization.[8]
^Berezanskii, Yu.M.; et al. (2008). "Leonid Andreevich Pastur (on the occasion of his seventieth birthday)". Russian Math. Surveys. 63 (1): 197–199. doi:10.1070/RM2008v063n01ABEH004512.
^Golʹdšeĭd, I.Ya.; Molčanov, S.A.; Pastur, L.A. (1977). "A random homogeneous Schrödinger operator has a pure point spectrum". Funkcional. Anal. I Priložen. 11 (1): 1–10. doi:10.1007/BF01135526. S2CID122146088.