Operators and Matrices · Volume 10, Issue 3 Non-self-adjoint fourth-order dissipative operators and the completeness of their eigenfunctions 10-39 Pages 651-668 DOI 10.7153/oam-10-39 Downloads Short PDF Full PDF PNG Authors Mei-Chun Yang Ji-Jun Ao Chao Li Keywords fourth order dissipative operators eigenvalues eigenfunctions completeness characteristic determinant Subject classes 34L10 34B20 47A48