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Finding Δ(Σ) for a surface σ of characteristic χ(Σ) = −5

✍ Scribed by Rong Luo; Yue Zhao

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
200 KB
Volume
68
Category
Article
ISSN
0364-9024

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✦ Synopsis

For each surface , we define ( ) = max{ (G)|G is a class two graph of maximum degree (G) that can be embedded in }. Hence, Vizing's Planar Graph Conjecture can be restated as ( ) = 5 if is a plane. In this paper, we show that ( ) = 9 if is a surface of characteristic ( ) = -5.

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Ab initio potential energy surfaces for studying the quenching of CH(A 2Δ) by H2(X 1Σg+)
✍ Alice Vegiri; Stavros C. Farantos 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 633 KB

The mechanism of electronic quenching of the A 2A state of CH by ground-state H, is qualitatively investigated by calculating the appropriate potential energy surfaces. It is shown that the appearance of an early potential barrier of 0.15 eV and of a late barrier of 0.6 eV on the potential energy su