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Nonexistence of twisted Hecke algebras
Let (147, S ) b e a C oxeter system w ith finite S 95 (cf.[1] ) .T h e group ring C[14 ] can be deform ed in two ways.(0.1)The twisted group ring.Let C [14 ] b e th e vector space with the basis {ew '}wEw.Assume th a …