## Abstract In this paper we prove that all geodetic blocks of diameter two can be divided in four types, i.e., Moore graphs with diameter two, regular pyramids with altitude 2, type AP and type PP. We also give the answers to the questions posed by J. G. Stemple in 1974.
Erratum to: The structure of geodetic blocks with diameter two
β Scribed by Mao Jingzhong; Sun Lingli
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 38 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0364-9024
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β¦ Synopsis
Abstract
In our paper 1 we gave a classification of geodetic blocks of diameter two, but the proof was incorrect. Here we point out this error and give a new result about constructing geodetic blocks of diameter two. Β© 2004 Wiley Periodicals, Inc. J Graph Theory 46 : 79β80, 2004
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