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A distance regular graph of typeE 1° E d |
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| Authors: | Suogang Gao Hong You |
| Institution: | (1) Department of Mathematics, Harbin Institute of Technology, 150001 Harbin, China |
| Abstract: | In this note, the distance regular graph of typeE 1° E d is considered and some characterization of the type graph is given. The results generalize the characterization of tight distance regular graphs. |
| Keywords: | tight distance regular graph distance regular graph of typeE 1° E d primitive idempotent cosine sequence |
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