activity
20112022
most citedThe local-global exact sequence for Chow groups of zero-cycles

3 citations · 6 across the 10 of their papers we have counts for

collaborators

10 papers

math.AG2022

Étale Brauer-Manin obstruction for Weil restrictions

Yang Cao, Yongqi Liang

The étale Brauer\textendash Manin obstruction is equivalent to each other among Weil restrictions of an arbitrarily given quasi-projective algebraic variety defined over a number f…

math.AG2021

Arithmetic of Châtelet surface bundles revisited

Guang Hu, Yongqi Liang

We study arithmetic of the algebraic varieties defined over number fields by applying Lagrange interpolation to fibrations. Assuming the finiteness of the Tate-Shafarevich group of…

math.AG2020

Compatibility of weak approximation for zero-cycles on products of varieties

Yongqi Liang

Zero-cycles are conjectured to satisfy weak approximation with Brauer-Manin obstruction for proper smooth varieties defined over number fields. Roughly speaking, we prove that the…

math.NT2018

Non-invariance of weak approximation properties under extension of the ground field

Yongqi Liang

For rational points on algebraic varieties defined over a number field , we study the behavior of the property of weak approximation with Brauer-Manin obstruction under extensio…

math.AG2017

Arithmetic purity of strong approximation for homogeneous spaces

Yang Cao, Yongqi Liang, Fei Xu

We prove that any open subset of a semi-simple simply connected quasi-split linear algebraic group with over a number field satisfies stro…

math.NT2013★ 1 cited

Local-global principle for 0-cycles on fibrations over rationally connected bases

Yongqi Liang

We study the Brauer-Manin obstruction to the Hasse principle and to weak approximation for 0-cycles on algebraic varieties that possess a fibration structure. The exactness of the…

math.NT2013

Local-global principle for certain biquadratic normic bundles

Yang Cao, Yongqi Liang

Let be a proper smooth variety having an affine open subset defined by the normic equation over a number field . We…

math.AG2012

Towards the Brauer-Manin obstruction on varieties fibred over the projective line

Yongqi Liang

Recently Dasheng Wei proved that the Brauer-Manin obstruction is the only obstruction to the Hasse principle for 0-cycles of degree 1 on some fibrations over the projective line de…

math.NT2012★ 3 cited

The local-global exact sequence for Chow groups of zero-cycles

Yongqi Liang

A local-global sequence for Chow groups of zero-cycles involving Brauer groups has been conjectured to be exact for all proper smooth algebraic varieties. We apply existing methods…

math.AG2011★ 2 cited

Arithmetic of 0-cycles on varieties defined over number fields

Yongqi Liang

Let be a rationally connected algebraic variety, defined over a number field . We find a relation between the arithmetic of rational points on and the arithmetic of zero…