Flenner–Zaidenberg's Strong Rigidity Conjecture

Let SS be a Q\mathbb{Q}-acyclic surface of log general type, and let (X,D)(X,D) be a minimal log smooth completion of SS. Here, TX(logD)\mathcal{T}_{X}(-\log D) denotes the logarithmic tangent sheaf of XX along DD. Strong Rigidity Conjecture. For every i0i\geqslant 0,

Hi(TX(logD))=0.H^{i}\left(\mathcal{T}_{X}(-\log D)\right)=0.

The conjecture, attributed in the source to Flenner and Zaidenberg, predicts vanishing of all cohomology groups of the logarithmic tangent sheaf for minimal completions of Q\mathbb{Q}-acyclic surfaces of log general type. The supplied text does not state whether it is open or resolved.

Sources & referencesView supporting material

Primary source

Karol Palka and Tomasz Pełka, “Classification of planar rational cuspidal curves. II. Log del Pezzo models”, arXiv:1810.08180 (2019).

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