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Terwilliger algebras of direct and wreath products of association schemes
Hanaki, Akihide,Kim, Kijung,Maekawa, Yu Elsevier 2011 Journal of algebra Vol.343 No.1
<P><B>Abstract</B></P><P>We will consider structures of Terwilliger algebras of direct and wreath products of association schemes. In general, it is difficult to determine the structure of the Terwilliger algebras though they are known to be semisimple C-algebras. But, we get the structure of Terwilliger algebras of these cases under some assumptions.</P>
Terwilliger algebras of wreath products by quasi-thin schemes
North Holland [etc.] 2012 Linear algebra and its applications Vol.437 No.11
The structure of Terwilliger algebras of wreath products by thin schemes or one-class schemes was studied in [A. Hanaki, K. Kim, Y. Maekawa, Terwilliger algebras of direct and wreath products of association schemes, J. Algebra 343 (2011) 195-200]. In this paper, we will consider the structure of Terwilliger algebras of wreath products by quasi-thin schemes. This gives a generalization of their result.