%0 Journal Article %A A. V. Chistyakov %T A pathological counterexample to the non-Fredholmness conjecture in algebras of weighted shift operators %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1995 %P 76-86 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1995_10_a8/ %G ru %F IVM_1995_10_a8