Ramanujan graphs arising as weighted Galois covering graphs
We give a new construction of Ramanujan graphs using a generalized type of covering graph called a weighted covering graph. For a given prime p the basic construction produces bipartite Ramanujan graphs with 4p vertices and degrees 2N where roughly $p + 1 - \sqrt{2p} < N \le p$. We then give gene...
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| Main Authors: | , |
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| Format: | EJournal Article |
| Published: |
GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB,
2018-04-03.
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| Online Access: | Get Fulltext |
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