Текст томруулах:    
Berezanskiĭ, JU︡. M

Expansions in Eigenfunctions of Self Adjoint operators - Providence American Mathematical Society 1968 - 809 - Translations of mathematical monographs v. 17 .

ГФ 17281


Англи хэл дээр,

functional analysis boundary value problems spectral theory differential equations of partial