activity
20132026
most citedComparison of prismatic cohomology and derived de Rham cohomology

7 citations · 28 across the 18 of their papers we have counts for

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19 papers · 1 filter

math.AG2026

Poincaré duality for pro-étale -local systems

Shizhang Li, Wiesława Nizioł, Emanuel Reinecke +1

We prove finiteness and Poincaré duality for pro-étale -local systems on proper -adic rigid-analytic spaces in the framework of Banach--Colmez spaces and establish…

math.AG2026

On de Rham--Witt Cohomology of Classifying Stacks

Shizhang Li, Yuan Yang

We give an example of proper smooth fourfold over a perfect field k of characteristic p > 0 with asymmetric Hodge--Witt numbers in total degree 3. Our example is sharp both in term…

math.AG2025

Automorphisms of Frobenius twisted de Rham cohomology

Shizhang Li, Shubhodip Mondal

In this short paper, we prove that the moduli of automorphisms of Frobenius twisted de Rham cohomology functor is given by . Our method is to use the notion of $\math…

math.AG2025

Bounding crystalline torsion from étale torsion

Ofer Gabber, Shizhang Li

In this note, we prove that given a smooth proper family over a -adic ring of integers, one gets a control of its crystalline torsion in terms of its étale torsion, the cohomolo…

math.AG2024

Relative Poincaré duality in nonarchimedean geometry

Shizhang Li, Emanuel Reinecke, Bogdan Zavyalov

We prove a conjecture of Bhatt-Hansen that derived pushforwards along proper morphisms of rigid-analytic spaces commute with Verdier duality on Zariski-constructible complexes. In…

math.AG2023★ 1 cited

Frobenius height of prismatic cohomology with coefficients

Haoyang Guo, Shizhang Li

We study the behavior of Frobenius operators on smooth proper pushforwards of prismatic F-crystals. In particular we show that the i-th pushforward has its Frobenius height increas…

math.AG2022

On the u^{\infty}-torsion submodule of prismatic cohomology

Shizhang Li, Tong Liu

We investigate the maximal finite length submodule of the Breuil-Kisin prismatic cohomology of a smooth proper formal scheme over a p-adic ring of integers. This submodule governs…

math.AG2021

Exponentially twisted de Rham cohomology and rigid cohomology

Shizhang Li, Dingxin Zhang

We prove a comparison theorem between exponentially twisted de Rham cohomology and rigid cohomology with coefficients in a Dwork crystal.

math.AG2021★ 1 cited

On endomorphisms of the de Rham cohomology functor

Shizhang Li, Shubhodip Mondal

We compute the moduli of endomorphisms of the de Rham and crystalline cohomology functors, viewed as a cohomology theory on smooth schemes over truncated Witt vectors. As applicati…

math.AG2021

Totaro's inequality for classifying spaces

Bhargav Bhatt, Shizhang Li

For a complex Lie group G and a prime number p, Totaro had conjectured that the dimension of the singular cohomology with Z/p-coefficients of classifying space of G is bounded abov…

math.AG2020★ 7 cited

Comparison of prismatic cohomology and derived de Rham cohomology

Shizhang Li, Tong Liu

We establish a comparison isomorphism between prismatic cohomology and derived de Rham cohomology respecting various structures, such as their Frobenius actions and filtrations. As…

math.AG2020★ 3 cited

Period sheaves via derived de Rham cohomology

Haoyang Guo, Shizhang Li

In this article we give an interpretation, in terms of derived de Rham complexes, of Scholze's de Rham period sheaf and Tan--Tong's crystalline period sheaf.

math.AG2020★ 1 cited

Integral p-adic Hodge filtrations in low dimension and ramification

Shizhang Li

Given an integral p-adic variety, we observe that if the integral Hodge--de Rham spectral sequence behaves nicely, then the special fiber knows the Hodge numbers of the generic fib…

math.AG2018★ 1 cited

An example of liftings with different Hodge numbers

Shizhang Li

In this paper, we exhibit an example of a smooth proper variety in positive characteristic possessing two liftings with different Hodge numbers.

math.AG2018★ 4 cited

Logarithmic de Rham comparison for open rigid spaces

Shizhang Li, Xuanyu Pan

In this note, we prove the logarithmic -adic comparison theorem for open rigid analytic varieties. We prove that a smooth rigid analytic variety with a strict simple normal cros…

math.AG2017★ 5 cited

Line bundles on rigid varieties and Hodge symmetry

David Hansen, Shizhang Li

We prove several related results on the low-degree Hodge numbers of proper smooth rigid analytic varieties over non-archimedean fields. Our arguments rely on known structure theore…

math.AG2017

Semistable reduction for multi-filtered vector spaces

Shizhang Li

In this paper, we prove a semistable reduction type theorem for multi-filtered vector spaces (or known as multi-weighted vector spaces).

math.AG2017★ 4 cited

On rigid varieties with projective reduction

Shizhang Li

In this paper, we study smooth proper rigid varieties which admit formal models whose special fibers are projective. The main theorem asserts that the identity components of the as…

math.AG2013

Unobstructedness of deformations of Calabi-Yau varieties with a line bundle

Shizhang Li, Xuanyu Pan

We generalize the Tian-Todorov Theorem in the case of Calabi-Yau varieties equipped with a line bundle.