James A. Hoffman

THERE ARE NO STRICT GREAT x-CYCLES AFTER A REDUCING OR P2 SURGERY ON A KNOT

James A. Hoffman, 1998 .

Reducing spheres and embedded projective planes after Dehn surgery on a knot

James A. Hoffman, 1995 .

Examples of bireducible Dehn fillings

D. Matignon, James A. Hoffman, 2003 .

Producing essential 2-spheres

D. Matignon, James A. Hoffman, 2002 .