We prove that there is no functorial universal finite type invariant for braids in Sigma x I if the genus of Sigma is positive. (C) 2003 Published by Elsevier SAS on behalf of Academie des sciences.
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Univ Victoria, Math & Stat, POB 1700 STN SCS, Victoria, BC V8W 2Y2, CanadaUniv Victoria, Math & Stat, POB 1700 STN SCS, Victoria, BC V8W 2Y2, Canada
Budney, Ryan
Conant, James
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Conant, James
Koytcheff, Robin
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Koytcheff, Robin
Sinha, Dev
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