Abstract
We study (symmetric) three-class association schemes.The graphs with four distinct eigenvalues which are one of the relations of such a scheme are characterized.We give an overview of most known constructions, and obtain necessary conditions for existence.A list of feasible parameter sets on at most 100 vertices is generated.
| Original language | English |
|---|---|
| Place of Publication | Tilburg |
| Publisher | Operations research |
| Number of pages | 36 |
| Volume | 744 |
| Publication status | Published - 1997 |
Publication series
| Name | FEW Research Memorandum |
|---|---|
| Volume | 744 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 8 Decent Work and Economic Growth -
SDG 10 Reduced Inequalities
Keywords
- wage differentials
- international trade
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