Weak Operator Topology, Operator Ranges and Operator Equations via Kolmogorov Widths
✍ Scribed by M. I. Ostrovskii; V. S. Shulman
- Publisher
- SP Birkhäuser Verlag Basel
- Year
- 2009
- Tongue
- English
- Weight
- 296 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0378-620X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
In a recent paper, H. Amann and E. Zehnder [ 11 studied existence problems for equations of the form (1) in a real Hilbert space H. Here A is a selfadjoint linear operator and F is a potential operator, mapping H continuously into itself. It is well known that equation ( 1) is a good framework for
## Abstract Let __I__ = [__a__ , __b__ ] ⊂ ℝ, let 1 < __q__ ≤ __p__ < ∞, let __u__ and __v__ be positive functions with __u__ ∈ __L__ ~__p__ ′~ (__I__ ) and __v__ ∈ __L__ ~__q__~ (__I__ ), and let __T__ : __L__ ~__p__~ (__I__ ) → __L__ ~__q__~ (__I__ ) be the Hardy‐type operator given by equation