Donaldson's Ricci-form conjecture for almost-Hermitian four-manifolds

Let (M,Ω)(M,\Omega) be a compact symplectic four-manifold with b+(M)=1b^+(M)=1, equipped with an almost complex structure JJ tamed by Ω\Omega. Let gΩg_{\Omega} be the metric determined by (Ω,J)(\Omega,J), and let Ric(gΩ,J)\operatorname{Ric}(g_{\Omega},J) denote the canonical-connection Ricci form. For a compatible symplectic form ω~\tilde{\omega}, write g~\tilde{g} for its associated metric. Donaldson's Ricci-form conjecture. For every smooth function FF on MM, there exists a unique symplectic form ω~[Ω]\tilde{\omega}\in[\Omega] compatible with JJ satisfying

Ric(g~,J)=Ric(gΩ,J)+12d(JdF).\operatorname{Ric}(\tilde{g},J)=\operatorname{Ric}(g_{\Omega},J)+\frac{1}{2}d(JdF).

This is proposed as the analogue of Yau's prescribed-Ricci-form theorem in the almost-complex setting. Its status is left open in the source.

Sources & referencesView supporting material

Primary source

Valentino Tosatti and Ben Weinkove, “The Calabi-Yau equation, symplectic forms and almost complex structures”, arXiv:0901.1501 (2009).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.