Journal of functional analysis, 2021-02, Vol.280 (4), p.108863, Article 108863
2021
Details
- Autor(en) / Beteiligte
- Titel
- On the Ext2-problem for Hilbert spaces
- Ist Teil von
- Journal of functional analysis, 2021-02, Vol.280 (4), p.108863, Article 108863
- Ort / Verlag
- Elsevier Inc
- Erscheinungsjahr
- 2021
- Link zum Volltext
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- We show that Ext2(ℓ2,ℓ2)≠0 in the category of Banach spaces. This solves a sharpened version of Palamodov's problem and provides a solution to the second order version of Palais problem. We also show that Ext2(ℓ1,K)≠0 in the category of quasi Banach spaces, which solves the four space problem for local convexity.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0022-1236eISSN: 1096-0783DOI: 10.1016/j.jfa.2020.108863Titel-ID: cdi_crossref_primary_10_1016_j_jfa_2020_108863
- Format
- –
- Schlagworte
- Exact sequences of Banach spaces, Hilbert spaces