TY - JOUR AU - Montesinos Amilibia, José María AU - Boileau, Michel AU - González Acuña, Francisco Javier PY - 1987 DO - 10.1007/BF01450747 SN - 0025-5831 UR - https://hdl.handle.net/20.500.14352/57722 T2 - Mathematische Annalen AB - W. Whitten conjectured [Pacific J. Math. 97 (1981), no. 1, 209–216] that no 3-manifold obtained by a nontrivial surgery on a double of a noninvertible knot is a 2-fold branched covering of S3. The authors give counterexamples to this conjecture and... LA - eng M2 - 323 PB - Springer KW - symmetries of 3-manifolds KW - Dehn surgeries on a double of a noninvertible knot KW - 2-fold branched covers of S 3 TI - Surgery on double knots and symmetries TY - journal article VL - 276 ER -