activity
20162025
most cited-bounds, operations and chords

11 citations · 16 across the 4 of their papers we have counts for

collaborators

9 papers

math.CO2025

Fractional balanced chromatic number and arboricity of planar (signed) graphs

Reza Naserasr, Lan Anh Pham, Cyril Pujol +1

A fractional coloring of a signed graph is an assignment of nonnegative weights to the balanced sets (sets which do not induce a negative cycle) such that each vertex has…

math.CO2021

Density of -critical signed graphs

Reza Naserasr, Lan Anh Pham, Zhouningxin Wang

A signed bipartite (simple) graph is said to be -critical if it admits no homomorphism to (a negative 4-cycle) but every proper subgraph of it does. In th…

math.CO2019

Restricted extension of sparse partial edge colorings of complete graphs

Carl Johan Casselgren, Lan Anh Pham

Given a partial edge coloring of a complete graph and lists of allowed colors for the non-colored edges of , can we extend the partial edge coloring to a proper edge col…

math.CO2019★ 1 cited

On restricted colorings of -edge colorable graphs

Lan Anh Pham

A cycle is -colored if its edges are properly colored by two distinct colors. A -edge colorable graph is a -regular graph that admits a proper -edge coloring in…

math.CO2019

Latin cubes of even order with forbidden entries

Carl Johan Casselgren, Lan Anh Pham

We consider the problem of constructing Latin cubes subject to the condition that some symbols may not appear in certain cells. We prove that there is a constant such that i…

math.CO2018

Latin Cubes with Forbidden Entries

Carl Johan Casselgren, Klas Markström, Lan Anh Pham

We consider the problem of constructing Latin cubes subject to the condition that some symbols may not appear in certain cells. We prove that there is a constant such that i…