Manetti's geography inequality for irregular surfaces

Let XX be a minimal surface of general type and maximal Albanese dimension with irregularity q4q\geq 4. Manetti's geography conjecture. One should have

KX24χ(OX)+4(q3).K_X^2\geq 4\chi(\mathcal O_X)+4(q-3).

This inequality concerns how the irregularity constrains the geography of surfaces of general type and maximal Albanese dimension. The source presents it as a conjecture of Manetti and states that it is proved there when KX236(q2)K_X^2\geq 36(q-2) or χ(OX)8(q2)\chi(\mathcal O_X)\geq 8(q-2); the supplied status therefore records it as resolved.

Sources & referencesView supporting material

Primary source

Xin Lu and Kang Zuo, “On the Severi type inequalities for irregular surfaces”, arXiv:1504.06569 (2015).

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.