TY - CHAP U1 - Buchbeitrag A1 - Teschl, Gerald A1 - Unterkofler, Karl ED - Holden, Helge ED - Simon, Barry ED - Teschl, Gerald T1 - Spectral theory as influenced by Fritz Gesztesy T2 - Spectral analysis, differential equations and mathematical physics. A festschrift in honor of Fritz Gesztesy's 60th birthday KW - 35P05, 34L40 (Primary) 34B20, 34B24 (Secondary) KW - Mathematical Physics KW - Mathematics - Spectral Theory Y1 - 2013 U6 - https://doi.org/10.1090/pspum/087 DO - https://doi.org/10.1090/pspum/087 SP - 341 EP - 364 PB - American Mathematical Society CY - Providence, RI ER -