References
- Bannai, E., Ito, T. (1984). Algebraic Combinatorics I: Association Schemes. Menlo Park, CA: Benjamin/Cummings.
- French, C., Zieschang, P.-H. (2020). On residually thin hypergroups. J. Algebra 551:93–118. DOI: https://doi.org/10.1016/j.jalgebra.2019.12.025.
- French, C., Zieschang, P.-H. (2021). Rings arising from finite tight hypergroups. J. Algebra 569:544–567. DOI: https://doi.org/10.1016/j.jalgebra.2020.10.018.
- Hanaki, A. (2000). Semisimplicity of adjacency algebras of association schemes. J. Algebra 225(1):124–129. DOI: https://doi.org/10.1006/jabr.1999.8125.
- Hanaki, A., Yoshikawa, M. (2005). On modular standard modules of association schemes. J. Algebraic Combin. 21(3):269–279. DOI: https://doi.org/10.1007/s10801-005-6911-3.
- Hanaki, A., Miyamoto, I. (2019). Classification of association schemes with small vertices. http://math.shinshu-u.ac.jp/∼hanaki/as/
- Hirasaka, M., Muzychuk, M. (2002). Association schemes generated by a non-symmetric relation of valency 2. Discrete Math. 244(1–3):109–135. DOI: https://doi.org/10.1016/S0012-365X(01)00063-2.
- Hirasaka, M., Muzychuk, M. (2002). On quasi-thin association schemes. J. Combin. Theory Ser. A. 98(1):17–32. DOI: https://doi.org/10.1006/jcta.2001.3222.
- Muzychuk, M., Ponomarenko, I. (2012). On quasi-thin association schemes. J. Algebra 351(1):467–489. DOI: https://doi.org/10.1016/j.jalgebra.2011.11.012.
- Zieschang, P.-H. (1996). An Algebraic Approach to Association Schemes. Lecture Notes in Mathematics, Vol. 1628. Berlin: Springer-Verlag.
- Zieschang, P.-H. (2005). Theory of Associaiton Schemes. Springer Monographs in Mathematics. Berlin: Springer-Verlag.
- Zieschang, P.-H. (2009). On association schemes with thin thin residue. J. Algebra 322(1):54–67. DOI: https://doi.org/10.1016/j.jalgebra.2009.03.008.