Abstract
In this note we show that the pagenumber of an N-free planar lattice is at most two. We use that to show that the pagenumber of N-free planar ordered sets which contain no covering four-cycle is at most two.
- Title
- N-free planar ordered sets that contain no covering four-cycle have pagenumber two
- Creators - without role
- Mohammad Alzohairi
- Publication Details
- Arabian journal for science and engineering (2011), Vol.31(2A), pp.213-220
- Publisher
- Springer Nature
- Number of pages
- 8
- Identifiers
- 9952776208331
- Academic Unit
- King Saud University
- Language
- English
- Resource Type
- Journal article