5 citations · 7 across the 4 of their papers we have counts for
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math.AG2017★ 5 cited
On exceptional collections of line bundles on weak del Pezzo surfaces
Alexey Elagin, Junyan Xu, Shizhuo Zhang
We study full exceptional collections of line bundles on surfaces. We prove that any full strong exceptional collection of line bundles on a weak del Pezzo surface of degree $\ge 3…
math.NT2017
Stratification for multiplicative character sums
Junyan Xu
We prove a stratification result for certain families of -dimensional (complete algebraic) multiplicative character sums. The character sums we consider are sums of products of…