TY  - BOOK
AU  - Yakubov, S
TI  - Completeness of root functions of regular differential operators
SN  - 9780582236929
SN  - 93035715
U1  - 515.35 YAK 
PY  - 1994///
CY  - Hoboken, N.J
PB  - John Wiley & Sons
KW  - Differential equations - Numerical solutions
KW  - Differential equations, Partial - Numerical solutions
KW  - Polynomial operator pencils
N1  - Includes bibliographical references (p. 234-239) and indexes
ER  -