Our earlier twisted-face-pairing construction showed how to modify an arbitrary orientation-reversing face-pairing on a faceted 3–ball in a mechanical way so that the quotient is automatically a closed, orientable 3–manifold. The modifications were, in fact, parametrized by a finite set of positive integers, arbitrarily chosen, one integer for each edge class of the original face-pairing. This allowed us to find very simple face-pairing descriptions of many, though presumably not all, 3–manifolds.
Here we show how to modify the construction to allow negative parameters, as well as positive parameters, in the twisted-face-pairing construction. We call the modified construction the bitwist construction. We prove that all closed connected orientable 3–manifolds are bitwist manifolds. As with the twist construction, we analyze and describe the Heegaard splitting naturally associated with a bitwist description of a manifold.
Cannon, James W  1 ; Floyd, William J  2 ; Parry, Walter R  3
@article{10_2140_agt_2009_9_187,
author = {Cannon, James W and Floyd, William J and Parry, Walter R},
title = {Bitwist 3{\textendash}manifolds},
journal = {Algebraic and Geometric Topology},
pages = {187--220},
year = {2009},
volume = {9},
number = {1},
doi = {10.2140/agt.2009.9.187},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.187/}
}
TY - JOUR AU - Cannon, James W AU - Floyd, William J AU - Parry, Walter R TI - Bitwist 3–manifolds JO - Algebraic and Geometric Topology PY - 2009 SP - 187 EP - 220 VL - 9 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.187/ DO - 10.2140/agt.2009.9.187 ID - 10_2140_agt_2009_9_187 ER -
Cannon, James W; Floyd, William J; Parry, Walter R. Bitwist 3–manifolds. Algebraic and Geometric Topology, Tome 9 (2009) no. 1, pp. 187-220. doi: 10.2140/agt.2009.9.187
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