Given a family (e tAk ) t 0 (k # N) of commuting contraction semigroups, we investigate when the infinite product > k=1 e tAk converges and defines a C 0 -semigroup. A particular case is the heat semigroup in infinite dimension introduced by Cannarsa and Da Prato (J. Funct. Anal. 118 (1993), 22 42).
On Exponential Stability ofC0Semigroups
β Scribed by Yue-Hu Luo; De-Xing Feng
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 174 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0022-247X
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β¦ Synopsis
In this note, the exponential stability for C semigroups in a Hilbert space is 0 considered. First, an expression for a C semigroup is given, and then a formula on 0 the growth order of a C semigroup is obtained. Finally, with some additional 0 condition such as the boundedness of the resolvent of the generator of a C 0 semigroup on an imaginary axis, the exponential stability of a C semigroup is 0 proved.
π SIMILAR VOLUMES
The present paper deals with a minimal extension of the classical semigroup theory for second-order damped differential equations in Banach spaces with closed, densely defined linear operators as coefficients. We do not ask anymore from our operators than in the case of first-order equations, i.e.,