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Full automorphism groups of association schemes based on isotropic subspaces
classification
🧮 math.CO
keywords
schemedimensionassociationautomorphismfullpolarspacesubspaces
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The set of all subspaces of a given dimension in a finite classical polar space has a structure of a symmetric association scheme. If the dimension is zero, this is the scheme of the collinearity graph of the space; If the dimension is maximum, it is the dual polar scheme. In this note, we determine the full automorphism group of this scheme.
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