Contents
Diagrammatic morphisms
D. N.
YETTER
1
Spin foam perturbation theory
JOHN C. BAEZ
9
Unlinked embedded graphs
JOHN
W.
BARRETT
23
Report on cross product bialgebras in braided categories
YURI BESPALOV AND BERNHARD DRABANT
29
Diagrammatic computations for quandles and cocycle knot invariants
J.
SCOTT CARTER, SEIICHI KAMADA, AND MASAHICO SAITO
51
Lax monoids, pseudo-operads, and convolution
BRIAN DAY AND Ross STREET
75
Diagrammatic formulation of multi-braided quantum groups
MICHO BURBEVICH
97
A matrix model for quantum
SL
2
CHARLES FROHMAN AND JOANNA KANIA-BARTOSZYNSKA
107
Bi-oriented quantum algebras, and a generalized Alexander polynomial for
virtual links
LOUIS
H.
KAUFFMAN AND DAVID RADFORD
113
Towards an algebraic characterization of 3-dimensional cobordisms
THOMAS KERLER
141
Operad of graphs, convolution and quasi Hopf algebra
ZBIGNIEW 0ZIEWICZ
175
SUn -quantum invariants for periodic links
JOZEF
H.
PRZYTYCKI AND ADAM S. SIKORA
199
Weak omega-categories
Ross STREET
207
v
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