𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The maximal number of quadrilaterals bounded by general straight lines in a plane

✍ Scribed by Ilona Palásti


Publisher
Springer Netherlands
Year
1975
Tongue
English
Weight
761 KB
Volume
6
Category
Article
ISSN
0031-5303

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


On the Number of Acute Triangles in a St
✍ Atsushi Kaneko; Hiroshi Maehara; Mamoru Watanabe 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 80 KB

In this paper we show that any maximal planar graph with m triangles except the unbounded face can be transformed into a straight-line embedding in which at least WmÂ3X triangles are acute triangles. Moreover, we show that any maximal outerplanar graph can be transformed into a straight-line embeddi

Graphs embedded in the plane with a boun
✍ C. Paul Bonnington; R. Bruce Richter 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 138 KB 👁 1 views

## Abstract Halin's Theorem characterizes those infinite connected graphs that have an embedding in the plane with no accumulation points, by exhibiting the list of excluded subgraphs. We generalize this by obtaining a similar characterization of which infinite connected graphs have an embedding in

A general upper bound for the cyclic chr
✍ Hikoe Enomoto; Mirko Horňák 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 457 KB 👁 1 views

## Abstract The cyclic chromatic number of a plane graph __G__ is the smallest number χ~__c__~(__G__) of colors that can be assigned to vertices of __G__ in such a way that whenever two distinct vertices are incident with a common face, they receive distinct colors. It was conjectured by Plummer an