ar X iv : 0 70 6 . 27 11 v 1 [ m at h . C O ] 1 9 Ju n 20 07 A Multiplication Rule for the Descent Algebra of Type D
نویسندگان
چکیده
Here we give an interpretation of Solomon's rule for multiplication in the descent algebra of Coxeter groups of type D, ΣDn. We describe an ideal I such that ΣDn/I is isomorphic to the descent algebra of the hyperoctahedral group, ΣBn−2.
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