The geometric Seifert conjecture for orientable real unir ruled threefolds
Let be a real unir ruled variety of dimension , and let be a geometric real component of . Assume that is orientable. A Seifert manifold is a -manifold admitting a Seifert fibration.
The geometric Seifert conjecture. The orientable geometric real components of orientable real unir ruled varieties of dimension are exactly the orientable Seifert manifolds.
This conjecture concerns the topological classification of real components of unir ruled real threefolds. The supplied text gives no resolution status.
References
Primary source
Frédéric Mangolte, “Topologie des variétés algébriques réelles de dimension 3”, arXiv:1306.0234 (2013).
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