Consider a graded poset P with maximal and minimal elements. If every interval of rank three in P is a product of chains, and for every interval [.L ~1 of rank at least four, the open interval (x, y) is connected, we show that the entire poset is a product of chains. This proves a conjecture of Stan
β¦ LIBER β¦
Locality of the perimeter in Carnot groups and chain rule
β Scribed by Luigi Ambrosio; Matteo Scienza
- Publisher
- Springer
- Year
- 2010
- Tongue
- English
- Weight
- 260 KB
- Volume
- 189
- Category
- Article
- ISSN
- 0373-3114
No coin nor oath required. For personal study only.
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## Abstract The TobeyβSimon (additivity) rule for aromatic groups which was devised about 40 years ago has been found to need revision. The rule shows an aromatic group attached to a Cο£ΎC double bond as causing a downfield chemical shift of a __cis__βrelated vinylic proton and a small upfield shift