Rational approximation of a class of infinite-dimensional systems I: Singular values of hankel operators
1990 ◽
Vol 3
(4)
◽
pp. 325-344
◽
1990 ◽
Vol 15
(3)
◽
pp. 221-226
◽
1999 ◽
Vol 12
(4)
◽
pp. 361-375
◽
Keyword(s):
1991 ◽
Vol 4
(3)
◽
pp. 233-246
◽