activity
20172026
most citedLeafy Spanning Arborescences in DAGs

5 citations · 23 across the 13 of their papers we have counts for

collaborators

13 papers

math.CO2026

An 18-colour bound for locally irregular decompositions

Carla Negri Lintzmayer, Guilherme Oliveira Mota, Maycon Sambinelli +1

A graph is locally irregular if adjacent vertices have distinct degrees. A graph G is decomposable if its edge set can be decomposed into locally irregular graphs, and its locally…

math.CO2026

Proper conflict-free 7-coloring of planar graphs

A. Jiménez, C. N. Lintzmayer, M. Sambinelli

A proper conflict-free coloring is a proper vertex coloring in which every nonisolated vertex has a color occurring uniquely in its open neighborhood. We prove that every graph wit…

math.CO2025

Immersions of large cliques in graphs with independence number 2 and bounded maximum degree

Fábio Botler, Cristina G. Fernandes, Carla N. Lintzmayer +4

An immersion of a graph in a graph is a minimal subgraph of for which there is an injection and a set of edge-disjoint paths $\{P_e:…

math.CO2024

A study on token digraphs

Cristina G. Fernandes, Carla N. Lintzmayer, Juan P. Peña +3

For a digraph of order and an integer , the -token digraph of is the graph whose vertices are all -subsets of vertices of and, given two su…

cs.DS2024★ 4 cited

A faster heuristic for the Traveling Salesman Problem with Drone

Pedro H. D. B. Hokama, Carla N. Lintzmayer, Mário C. San Felice

Given a set of customers, the Flying Sidekick Traveling Salesman Problem (FSTSP) consists of using one truck and one drone to perform deliveries to them. The drone is limited to de…

cs.DS2023★ 1 cited

Approximations for the Steiner Multicycle Problem

Cristina G. Fernandes, Carla N. Lintzmayer, Phablo F. S. Moura

The Steiner Multicycle problem consists of, given a complete graph, a weight function on its vertices, and a collection of pairwise disjoint non-unitary sets called terminal sets,…

math.CO2023★ 1 cited

Boundedness for proper conflict-free and odd colorings

Andrea Jiménez, Kolja Knauer, Carla Negri Lintzmayer +7

The proper conflict-free chromatic number, , of a graph is the least such that has a proper -coloring in which for each non-isolated vertex there is a co…

math.CO2023★ 4 cited

Biclique immersions in graphs with independence number 2

Fábio Botler, Andrea Jiménez, Carla N. Lintzmayer +3

The analogue of Hadwiger's conjecture for the immersion relation states that every graph contains an immersion of . For graphs with independence number 2, this is equ…

cs.DS2021★ 2 cited

How heavy independent sets help to find arborescences with many leaves in DAGs

Cristina G. Fernandes, Carla N. Lintzmayer

Trees with many leaves have applications on broadcasting, which is a method in networks for transferring a message to all recipients simultaneously. Internal nodes of a broadcastin…

cs.DS2020★ 5 cited

Leafy Spanning Arborescences in DAGs

Cristina G. Fernandes, Carla N. Lintzmayer

Broadcasting in a computer network is a method of transferring a message to all recipients simultaneously. It is common in this situation to use a tree with many leaves to perform…

math.CO2019★ 4 cited

Decomposing split graphs into locally irregular graphs

Carla Negri Lintzmayer, Guilherme Oliveira Mota, Maycon Sambinelli

A graph is locally irregular if any pair of adjacent vertices have distinct degrees. A locally irregular decomposition of a graph is a decomposition of such t…

cs.DS2017★ 2 cited

Online Circle and Sphere Packing

Carla Negri Lintzmayer, Flávio Keidi Miyazawa, Eduardo Candido Xavier

In this paper we consider the Online Bin Packing Problem in three variants: Circles in Squares, Circles in Isosceles Right Triangles, and Spheres in Cubes. The two first ones recei…

math.CO2017

Edge-magic labelings for constellations and armies of caterpillars

Márcia R. Cerioli, Cristina G. Fernandes, Orlando Lee +3

Let be an -vertex graph with edges. A function is an edge-magic labeling of if is bijective and, for some int…