LAWCG 2026

12th Latin American Workshop on Cliques in Graphs

LAWCG is meant to foster interaction among the Latin American Graph Theory and Combinatorics community, whose research interests include cliques, clique graphs, the behavior of cliques and other topics in Graph Theory.

The official languages are English, Portuguese, and Spanish.

For information about previous editions, please visit the LAWCG permanent website.

October 5-8, 2026
Hotel Monte Real, Águas de Lindóia, São Paulo, Brazil
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LAWCG 2026

Important dates

Attention: all deadlines are at 11:59pm AoE (Anywhere on Earth) time zone.

Submissions

until April 30 May 7 May 14, 2026 (hard) ✅

Notification

June 1 June 8June 15, 2026 ✅

Camera-ready

June 15 June 22June 29, 2026 ✅

Early registration

until July 15 July 30, August 4, 2026 (hard) ✅

Late registration

until September 5, 2026 (hard)

Workshop

5-8 October, 2026

Submissions

Contributed talks covering original work on the conference topics will be accepted for presentation.

Prospective authors should submit an at most 2-page abstract of their work following this LaTeX format. Other formats will not be accepted for submission.

Abstracts must be submitted electronically via the EasyChair submission system.

For each accepted abstract, at least one author must register and attend the symposium (in person) to present it.

Proceedings

The abstracts of accepted submissions will not be formally published, but will be compiled into a Book of Abstracts that will be made available on the event website.

After the workshop, there will be a call for papers for a special issue of the Matemática Contemporânea, as in the previous editions of LAWCG. All interested researchers will be invited to submit an extended abstract describing their contributions. The submitted papers will go through the normal peer-review process, following the guidelines of Matemática Contemporânea.

Speakers

Speaker
Plenary talk

Miguel Pizaña

Universidad Autónoma Metropolitana, Mexico

He is a Full Professor at the Universidad Autónoma Metropolitana (UAM) in Mexico and a Level II researcher in the National System of Researchers (SNII). He holds a Ph.D. in Sciences (Graph Theory) from UAM, an M.Sc. in Mathematics from CINVESTAV. His research lies at the intersection of Mathematics and Computer Science, specializing in Graph Theory with a focus on computational combinatorics, clique graphs and cages. He also serves on the steering committees of the Latin American Algorithms, Graphs, and Optimization Symposium (LAGOS) and the Latin American Workshop on Cliques in Graphs (LAWCG).

Title: On the finite extension problem. Click here for the abstract.
Speaker
Plenary talk

Ana Karolinna Maia

Universidade Federal do Ceará, Brazil

She holds a bachelor’s degree in Computer Science from the Federal University of Ceará (2008), a master’s degree in Computer Science from the Federal University of Ceará (2011), and a PhD in Computer Science from Université de Nice Sophia Antipolis (2014). She is currently a professor in the Department of Computer Science at the Federal University of Ceará and a collaborating member of the Algorithms research line of the Master’s and Doctoral Program in Computer Science (MDCC-UFC). Her main research interests are graph theory, computational complexity, and algorithms.

Title: Morphisms in digraphs. Click here for the abstract.
Speaker
Plenary talk

Maya Stein

Universidad de Chile, Chile

She is the deputy director of the Center for Mathematical Modeling, and also the Academic Director of the Center. She is a full professor at the Department of Mathematical Engineering of the Universidad de Chile. She obtained her doctorate degree at the University of Hamburg, Germany. She works in Combinatorics and Graph Theory, with a broad spectrum ranging from extremal and probabilistic graph theory and hypergraphs to algorithmic graph theory. She serves on the scientific committee of the Chilean Mathematical Society (Somachi), and was deputy head of the ANID grant evaluation panel for mathematics.

Title and abstract: to be announced

Program

A detailed program can be seen here. The overview below includes all currently planned activities. Feel free to add it to your own Google Calendar.

Registration

The event will take place at Hotel Monte Real, and all participants are required to stay at this hotel for the duration of the event.

During registration, participants must choose between a single room or a shared double and above room. Participants selecting a double and above room may indicate their preferred roommate during registration; if no preference is provided, the organizing team will make the room assignment.

Participants are also welcome to bring accompanying guests, such as family members or children. Please note that accompanying persons are individuals staying at the conference venue who do not participate in the workshop's scientific programme. If both you and your partner are participating in the scientific programme, please complete separate registration forms.



Registration fee

The registration fee is all-inclusive and covers the accommodation for all days of the stay, all meals (breakfasts, coffee-breaks, lunches, and dinners), leisure facilities at the hotel, and transportation between USP/GRU Airport (not Congonhas Airport) and the hotel (on Monday and on Thursday).

Expenses for alcoholic and non-alcoholic beverages, as well as extra services such as minibar, laundry, and any other costs incurred by participants during their stay, will be the responsibility of the participants and must be paid at hotel check-out.

There are Full and Reduced registrations. Reduced registration is reserved only for undergrad students, master students, and PhD students.

Each registration (Full or Reduced) covers participation in the scientific programme, regardless of the number of papers presented by the participant. For each paper, at least one of its authors must be registered for the event (Full or Reduced). Papers must be presented by one of their authors; presentations by non-authors are not permitted.

Please note: the registration fee is for the entire event and includes all three nights of accommodation. It is not a per-night rate.

EARLY
Reduced - Double and above Room

BRL 1300

Until August 4th

EARLY
Reduced - Single Room

BRL 2092

Until August 4th

EARLY
Full - Double and above Room

BRL 2000

Until August 4th

EARLY
Full - Single Room

BRL 2792

Until August 4th

EARLY
Accompanying Person (12 years old and over) – Double and above Room

BRL 1320

Until August 4th

EARLY
Accompanying Person (5 to 11 years old) – Double and above Room

BRL 972

Until August 4th

LATE
Accompanying Person (12 years old and over) – Double and above Room

BRL 1720

Until Sep. 5th

LATE
Accompanying Person (5 to 11 years old) – Double and above Room

BRL 1372

Until Sep. 5th

LATE
Reduced - Double and above Room

BRL 1700

Until Sep. 5th

LATE
Reduced - Single Room

BRL 2492

Until Sep. 5th

LATE
Full - Double and above Room

BRL 2400

Until Sep. 5th

LATE
Full - Single Room

BRL 3192

Until Sep. 5th

Children up to 4 years old stay free.



Bank transfer details

Payments must be made in Brazilian Reais (BRL) using one of the payment methods listed below.
If payment is made in another currency, please ensure that the final amount received by the organizers is equivalent to the amount due in BRL, according to the exchange rate on the date of payment and after deduction of any applicable fees.

  • PIX transfer to key: 7f71201a-8ce4-4c88-bebe-08e8e27ba668
  • Wise transfer to: @carlan437
  • Bank transfer:
    Name: Carla Negri Lintzmayer
    IBAN: BE37 9678 9285 2428
    Swift/BIC: TRWIBEB1XXX
    Name and adress of the bank: Wise, Rue du Trône 100, 3rd floor, Brussels, 1050, Belgium


Registration form

Before registering, please make sure you have a proof of payment (PDF) and, if you are a student, a document confirming your student status with a date no later than 30 days (PDF).

To register, please fill out this registration form.

Your registration will remain pending until your payment is manually confirmed by the organizing team. Once confirmed, your name will appear on the website in the Participants section.

Venue

The event will take place at the following hotel, and all participants are required to stay at this hotel for the duration of the event.

Hotel photo

Hotel Monte Real

R. São Paulo, 622 - Centro, Águas de Lindóia - SP, 13940-000, Brazil

The event will take place at Hotel Monte Real, located in Águas de Lindóia, approximately two hours from São Paulo. The hotel offers a well-established infrastructure, with multiple accommodation towers and comfortable rooms equipped with air conditioning, Wi-Fi, and other standard amenities.
The venue includes a range of leisure and wellness facilities, such as indoor and outdoor pools, heated pools, and relaxation areas. There are also recreational spaces and sports courts, as well as facilities suitable for families with children. Meals are served on site in a buffet-style restaurant.
Overall, the hotel provides a comfortable and well-equipped setting for the event, supporting both work-related activities and leisure during participants' stay.

Free parking
Free WiFi
24h reception
Heated pools
Full board
Bar

Getting There

By Air

Guarulhos Airport (160 km)

2 to 3 hours
By Car

Free parking available on-site

Gated and covered parking
Public Transport

From São Paulo Tietê Bus Terminal

3 to 4.5 hours

Committees

Steering Committee

  • Liliana Alcón, Universidad Nacional de La Plata, Argentina
  • Márcia Cappelle, Universidade Federal de Goiás, Brazil
  • Erika Coelho, Universidade Federal de Goiás, Brazil
  • Celina Herrera de Figueiredo, Universidade Federal do Rio de Janeiro, Brazil
  • Marina Groshaus, Universidade Tecnológica Federal do Paraná, Brazil
  • Marisa Gutierrez, Universidad Nacional de La Plata, Argentina
  • Miguel Pizaña, Universidad Autónoma Metropolitana, Mexico
  • Jayme Szwarcfiter, Universidade Federal do Rio de Janeiro, Brazil

Program Committee

  • Lehilton Lelis Chaves Pedrosa (Chair), Universidade Estadual de Campinas, Brazil
  • Sheila Morais de Almeida, Universidade Tecnológica Federal do Paraná, Brazil
  • Mauro Nigro Alves Junior, Universidade Estadual do Rio de Janeiro, Brazil
  • Júlio César Silva Araújo, Universidade Federal do Ceará, Brazil
  • Márcia Cappelle, Universidade Federal de Goiás, Brazil
  • César Hernández-Cruz, Universidad Nacional Autónoma de México, Mexico

Organizing Committee

  • Carla Negri Lintzmayer (Chair), Universidade Federal do ABC, Brazil
  • Guilherme Oliveira Mota (Chair), Universidade de São Paulo, Brazil
  • Vinícius Fernandes dos Santos, Universidade Federal de Minas Gerais, Brazil
  • Cristiane Sato, Universidade Federal do ABC, Brazil
  • Lehilton Lelis Chaves Pedrosa, Universidade Estadual de Campinas, Brazil
  • Maycon Sambinelli, Universidade Federal do ABC, Brazil

Participants

  • Abias Lins Palheiros Vidal, Universidade Federal Fluminense
  • Alessandra Aparecida Pereira, Universidade Estadual de Campinas
  • Alessandra Barbosa Verissimo, Universidade Federal do Rio de Janeiro
  • Álvaro Junio Pereira Franco, Universidade Federal de Santa Catarina
  • Ana Karolinna Maia, Universidade Federal do Ceará
  • Carla Negri Lintzmayer, Universidade Federal do ABC
  • Carlos Piffer Verissimo Jr, Universidade Federal Fluminense
  • César Augusto dos Santos Bispo, Universidade de São Paulo
  • César Hernández Cruz, Universidad Nacional Autónoma de México
  • Christiane Neme Campos, Universidade Estadual de Campinas
  • Claudia Marlene De la Cruz Torres, Universidad Autónoma Metropolitana
  • Clayton Santos de Araujo, Universidade do Estado do Rio de Janeiro
  • Cristiane Maria Sato, Universidade Federal do ABC
  • Daniel Debrohim dos Santos, Universidade do Estado do Rio de Janeiro
  • Danilo Artigas, Universidade Federal Fluminense
  • Dayllon Vinícius Xavier Lemos, Universidade Federal de Goiás
  • Diana Sasaki Nobrega, Universidade do Estado do Rio de Janeiro
  • Edileudo Maciel Moreira Filho, Universidade Federal do Ceará
  • Eric Rodrigues Gomes, Universidade Federal do Ceará
  • Eugen Mandrescu, Holon Institute of Technology
  • Fabricio Siqueira Benevides, Universidade Federal do Ceará
  • Guilherme de Castro Mendes Gomes, Universidade Federal de Minas Gerais
  • Guilherme Mota, Universidade de São Paulo
  • Gustavo Morais Medeiros, Universidade Federal de Goiás
  • Henry Echeverría, Universidad de Valparaíso
  • Hebert Coelho da Silva, Universidade Federal de Goiás
  • Iago Arruda Faria, Universidade Federal do Tocantins
  • Ingrid da Costa Silva Borchert, Universidade do Estado do Rio de Janeiro
  • Joviro Rocha Neto, Universidade Federal de Goiás
  • Juliane Kristine de Lima, Universidade de São Paulo
  • Júlio César Silva Araújo, Universidade Federal do Ceará
  • Julliano Rosa Nascimento, Universidade Federal de Goiás
  • Lehilton Pedrosa, Universidade Estadual de Campinas
  • Leon Araujo Almeida, Universidade Federal do Ceará
  • Lucas de Oliveira Silva, Universidade Estadual de Campinas
  • Luerbio Faria, Universidade do Estado do Rio de Janeiro
  • Luis Gustavo da Soledade Gonzaga, Universidade Estadual de Campinas
  • Luis Henrique Gomes Higino, Universidade Federal de Minas Gerais
  • Luiz Carlos de Souza Almeida, Universidade Federal de Goiás
  • Mariana Martins Ferreira da Cruz, Universidade do Estado do Rio de Janeiro
  • Marina Esther Groshaus, Universidade Tecnológica Federal do Paraná
  • Martín Darío Safe, Universidad Nacional del Sur y CONICET
  • Mauro Nigro Alves Junior, Universidade do Estado do Rio de Janeiro
  • Márcia Rodrigues Cappelle Santana, Universidade Federal de Goiás
  • Maya Stein, University of Chile
  • Mayara Midori Omai, Centro Federal de Educação Tecnológica Celso Suckow da Fonseca
  • Maycon Sambinelli, Universidade Federal do ABC
  • Miguel Alessandro Mini Huambachano, Universidade Estadual de Campinas
  • Miguel Ángel Pizaña López, Universidad Autónoma Metropolitana
  • Mitre Costa Dourado, Universidade Federal do Rio de Janeiro
  • Nicolas de Melo Pedroso, Universidade Federal do ABC
  • Rafael de Paiva Lima Filho, Universidade Federal do Ceará
  • Pablo Jesús De Caria Di Fonzo, Universidad Nacional del La Plata
  • Pedro Guimarães Caninas, Universidade Federal de Santa Catarina
  • Pedro Henrique Feitosa Fernandes, Universidade Federal do Ceará
  • Renato José da Silva Carmo, Universidade Federal do Paraná
  • Ryan Fernandes Auder Lopes, Universidade Federal de Goiás
  • Silas Justiniano Veiga da Silva, Universidade Federal do ABC
  • Victor Almeida Campos, Universidade Federal do Ceará
  • Vinicius Fernandes dos Santos, Universidade Federal de Minas Gerais
  • Vitor dos Santos Ponciano, Universidade Federal Fluminense
  • Vitor Hugo Santos Alencar, Universidade Federal do Paraná
  • Wagner Alan Aparecido da Rocha, Universidade Estadual de Campinas