Edmunds, David Eric Elliptic differential operators and spectral analysis Cham, Switzerland : Springer, 2018. xiii, 322 p. -- (Springer monographs in mathematics) QA377 E35 |
Edmunds, David Eric Elliptic differential operators and spectral analysis Cham, Switzerland : Springer, 2018. xiii, 322 p. -- (Springer monographs in mathematics) QA377 E35 |