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On the Non-Existence of \(\mathrm{{srg}(76,21,2,7)}\)

  • Monther R. Alfuraidan
  • Ibrahim O. Sarumi
  • Sergey ShpectorovEmail author
Original Paper
  • 25 Downloads

Abstract

We present a new non-existence proof for the strongly regular graph G with parameters (76, 21, 2, 7), using the unit vector representation of the graph.

Keywords

Strongly regular graph Distance regular graph Unit vector representation 

Mathematics Subject Classification

Primary 05E30 Secondary 05C30 

Notes

Acknowledgements

The authors are grateful to King Fahd University of Petroleum and Minerals for supporting this research.

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Copyright information

© Springer Japan KK, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mathematics and StatisticsKing Fahd University of Petroleum and MineralsDhahranSaudi Arabia
  2. 2.School of MathematicsUniversity of BirminghamEdgbastonUK

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