Thurston's Euler class realization conjecture for taut foliations
Thurston's Euler class realization conjecture for taut foliations
Let be a closed orientable irreducible atoroidal 3-manifold with positive first Betti number. An integral class is a class arising from integral cohomology, and the parity condition means that lies in the image of . A taut foliation has Euler class . Thurston's Euler class realization conjecture. For any integral class of dual Thurston norm one and satisfying the parity condition, there exists a taut foliation of with Euler class equal to . The conjecture asks whether every eligible boundary class of the dual Thurston norm ball is realized by a taut foliation; the parity condition is necessary for Euler classes of transversely oriented plane fields.
Sources & referencesView supporting material
Primary source
Mehdi Yazdi, “Thurston norm and the Euler class”, arXiv:2604.08096 (2026).
Additional references
5 papers in this index state this conjecture (2014–2026). The statement above is taken from the most recent of them; the others are arXiv:2409.14504, arXiv:2211.11725, arXiv:2008.07223, arXiv:1402.7096.
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Solutions 0
Sign in to submit a solution.
No solutions have been posted yet.