Edel–Landjev–Xiang conjecture on the highest intersections with Hermitian surfaces

About 8 years old · traced to

Let V2⊂P3(Fq2)V_2\subset\mathbb{P}^3(\mathbb{F}_{q^2}) be a non-degenerate Hermitian surface, and let F∈Fq2[x0,x1,x2,x3]F\in\mathbb{F}_{q^2}[x_0,x_1,x_2,x_3] be homogeneous of degree dd. Let wiw_i, for 1≤i≤2d+11\leq i\leq 2d+1, denote the 2d+12d+1 highest possible values of

∣V(F)∩V2∣.|V(F)\cap V_2|.

Edel–Landjev–Xiang conjecture. For each ii, there exist linear homogeneous polynomials H1,…,HdH_1,\ldots,H_d such that the hyperplanes V(H1),…,V(Hd)V(H_1),\ldots,V(H_d) contain a common line and

∣V(H1⋯Hd)∩V2∣=wi.|V(H_1\cdots H_d)\cap V_2|=w_i.

The conjecture describes the extremal intersection values by unions of dd hyperplanes through a common line. It is stated here as a specialization of Conjecture 2(i) from the cited work, and no resolution is supplied in the text.

References

Primary source

Peter Beelen and Mrinmoy Datta, “Maximum number of points on intersection of a cubic surface and a non-degenerate Hermitian surface”, arXiv:1802.06681 (2020).

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.