An example of a solvable but not nipotent (−1, 1)-ring
✍ Scribed by G. V. Dorofeev
- Publisher
- Springer US
- Year
- 1973
- Tongue
- English
- Weight
- 159 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0002-5232
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
In 1888 D. HILBERT showed the existence of a real polynomial in two variables of sixth degree which is non-negative on the real plane without being a finite sum of squares of polynomials ([2]; see e.g. [l]). The existence of such polynomials has important consequences in the theory of unbounded oper
a-Benzotriazolylamides 6a-d afforded N-(benzotriazol-1-ylmethyl)arylimidoyl chlorides (4a-d), which reacted in situ with potassium tert-butoxide to form 3-aryl-1,2,4-triazolo[1,2-a]benzotriazoles (7a-d) (44-68%), representatives of a novel heterocyclic system. The structure of 7a was confirmed by si