Universally tight toric-annulus conjecture for adding Giroux torsion
Universally tight toric-annulus conjecture for adding Giroux torsion
Let be a convex incompressible torus in a tight contact 3-manifold such that every toric annulus neighborhood of with convex boundary is universally tight. Conjecture. The contact 3-manifold obtained by adding Giroux torsion in a neighborhood of is tight.
This conjecture proposes a sufficient condition for adding Giroux torsion near an incompressible torus while preserving tightness. The surrounding discussion relates it to Honda's work and notes that the toric annulus neighborhoods must be universally tight, even though the ambient contact 3-manifold need not be universally tight.
Sources & referencesView supporting material
Primary source
Tanushree Shah and Jonathan Simone, “Tight contact structures on toroidal plumbed 3-manifolds”, arXiv:2412.10225 (2025).
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
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