activity
20112026
most citedLivsic theorem for diffeomorphism cocycles

14 citations · 17 across the 16 of their papers we have counts for

collaborators

18 papers

math.DS2026

Minimal sets for torus homeomorphisms with an irrational circle factor

Xiao-Chuan Liu

We study minimal sets of torus homeomorphisms admitting an irrational circle factor whose fibres are thin essential annular continua. For totally irrational pseudo-rotations and ho…

math.CO2026

Strongly separating graph edges with paths

Xiao-Chuan Liu, Boyan Xu, Xu Yang

A family of paths strongly separates the edges of a graph if every two distinct edges are separated in both directions by paths in the family. Bonamy, Botler, Dross, Naia, and Skok…

math.CO2026

Sharp Same-Color Cycle Covers in Two-Colored Complete Graphs

Xiao-Chuan Liu, Jonatas Teodomiro, Xu Yang

We extend the conjecture of Erdős and Gyárfás on monochromatic path covers to the setting of monochromatic cycle covers. We prove that, for all , every 2-edge-coloring of the co…

math.CO2026

A rainbow version of Lehel's conjecture

Pedro Araújo, Xiao-Chuan Liu, Taísa Martins +4

Lehel's conjecture states that every 2-edge-colouring of K_n admits a partition of its vertex set into two monochromatic cycles. It was proven for sufficiently large n by Łuczak, R…

math.CO2026

Linear Lower Bounds for the Modular Chromatic Index

Xiao-Chuan Liu, Boyan Xu, Xu Yang

Let be an integer. A edge-coloring of a graph is an edge-coloring in which every nonzero degree in each color class is congruent to modulo . Let $χ'_…

math.CO2026

Large Monochromatic Components in Colored Random Graphs

Xiao-Chuan Liu, Xu Yang

We study the size of the largest monochromatic connected component that must appear in any edge-coloring of a random graph. Let with and , and wri…

math.CO2026

On Turán Number of Graphs with Small Minimum Feedback Vertex Numbers

Xiao-Chuan Liu, Xu Yang

Given a graph , the minimum feedback vertex number of is the minimum number of vertices whose removal results in an acyclic graph. In this paper, we investigate Turán-type e…

math.CO2023

More on Rainbow Cliques in Edge-Colored Graphs

Xiao-Chuan Liu, Danni Peng, Xu Yang

In an edge-colored graph , a rainbow clique is a -complete subgraph in which all the edges have distinct colors. Let and be the number of edges and colors…

math.DS2022

On Non-contractible Periodic Orbits and Bounded Deviations

Xiao-Chuan Liu, Fabio Armando Tal

We present a dichotomy for surface homeomorphisms in the isotopy class of the identity. We show that, in the absence of a degenerate fixed point set, either there exists a uniform…

math.CO2022

On Color Isomorphic Pairs in Proper Edge Colourings of Complete Graphs

Xiao-Chuan Liu, Xu Yang

Following the recent paper which initiated the study of colour isomorphism problems for complete graphs, we obtain upper bounds for for a family of graphs obtained a…

math.CO2021

Turán Number of Subdivisions of Multipartite Graphs

Xiao-Chuan Liu, Danni Peng, Xu Yang

In this paper, we investigate the Turán exponent for -subdivisions of graphs that are neither bipartite nor complete. Specifically, we establish an upper bound on the Turán numb…

math.CO2021★ 2 cited

On the Turán Number of Generalized Theta Graphs

Xiao-Chuan Liu, Xu Yang

Let denote the generalized theta graph, which consists of internally disjoint paths with lengths , connecting two fixed vertice…

math.DS2019

Uniform convergence rate for Birkhoff means of certain uniquely ergodic toral maps

Silvius Klein, Xiao-Chuan Liu, Aline Melo

We obtain estimates on the uniform convergence rate of the Birkhoff average of a continuous observable over torus translations and affine skew product toral transformations. The co…

math.DS2019

Prime Ends Dynamics in Parametrised Families of Rotational Attractors

Jan P. Boroński, Jernej Činč, Xiao-Chuan Liu

We provide several new examples in dynamics on the -sphere, with the emphasis on better understanding the induced boundary dynamics of invariant domains in parametrized families…

math.DS2019★ 1 cited

On Stable and Unstable Behaviours of Certain Rotation Segments

Salvador Addas-Zanata, Xiao-Chuan Liu

In this paper, we study non-wandering homeomorphisms of the two torus in the identity homotopy class, whose rotation sets are non-trivial line segments from to some totally…

math.DS2018

Minimal non-invertible maps on the pseudo-circle

Jan P. Boronski, Judy Kennedy, Xiao-Chuan Liu +1

In this article, we show that R.H. Bing's pseudo-circle admits a minimal non-invertible map. This resolves a problem raised by Bruin, Kolyada and Snoha in the negative. The main to…

math.DS2017★ 14 cited

Livsic theorem for diffeomorphism cocycles

Artur Avila, Alejandro Kocsard, Xiao-Chuan Liu

We prove the so called Livšic theorem for cocycles taking values in the group of $C^{1+β}-diffeomorphisms of any closed manifold of arbitrary dimension. Since no localization hypot…

math.CO2011

On flushed partitions and concave compositions

Xiaochuan Liu

In this work, we give combinatorial proofs for generating functions of two problems, i.e., flushed partitions and concave compositions of even length. We also give combinatorial in…