XI Brazilian Workshop on Continuous Optimization

UFAM, Manaus, AM, May 22 – 27, 2016 

The XI Brazilian Workshop on Continuous Optimization will take place in Manaus, (UFAM) in the Amazonas state, north of Brazil, from May 22 to 27, 2016, celebrating Carlos Humes Júnior’s 70th birthday. Subjects to be discussed encompass theoretical, computational and implementation issues, in both linear and nonlinear programming, including variational inequalities, complementarity problems, nonsmooth optimization, vector optimization, generalized equations, optimization in manifolds etc.


Group Picture


Conference Venue

The XI BRAZOPT will take place at the Federal University of Amazonas (UFAM)



Plenary Speakers

Contributed Talks


Organizing Committee

Alfredo Iusem (IMPA)
Flávia Morgana de Oliveira Jacinto (UFAM)
Gustavo Cunha da Silva Neto (UFAM)
Mário Salvatierra Júnior (UFAM)
Roberto Cristóvão Mesquita Silva (UFAM)
Yachico Nascimento Wakiyama (UFAM)

Scientific Committee

Alfredo Iusem (IMPA) (chair)
Benar Svaiter (IMPA)
Claudia Sagastizábal (IMPA)
Clóvis Gonzaga (UFSC)
Ernesto Birgin (USP)
José Mario Martínez (UNICAMP)
Mikhail Solodov (IMPA)
Paulo Jose da Silva e Silva (USP)
Roberto Andreani (UNICAMP)

Invited Talks

Ernesto Birgin (Universidade de São Paulo)
Evaluation Complexity for Nonlinear Constrained Optimization Using Unscaled KKT Conditions and High-Order Models

Immanuel M. Bomze (Universitt Wien)
Tightening Dual Bounds for QCQPs by Copositivity

Roberto Cominetti (Universidad Adolfo Ibáñez)
Optimal convergence rates for Karsnoselskii-Mann fixed-point iterations

Clóvis Gonzaga (Universidade Federal de Santa Catarina)
Performance of steepest descent algorithms for minimizing quadratic functions

Alfredo Iusem (IMPA)
Extragradient methods for stochastic variational inequalities: convergence results and complexity analysis

Juan Enrique Martínez-Legaz (Universidad Autónoma de Barcelona)
On the Voronoi mapping

Jose Mario Martínez (Universidade Estadual de Campinas)
A variable-norm trust-region method for unconstrained minimization and its cubic-regularization version

Renato Monteiro (Georgia Institute of Technology)
Regularized HPE-type methods for solving monotone inclusions with improved pointwise iteration-complexity bounds and their regularized ADMM variants

Boris Mordukhovich (Wayne State University)
Optimal Control of the Sweeping Process

Claudia Sagastizábal (IMPA)
Primal-Dual Methods in Stochastic Programming with Application to Energy Problems

Mikhail Solodov (IMPA)
Critical Solutions of Nonlinear Equations

Benar Fux Svaiter (IMPA)
Iteration-complexity of a Rockafellar’s proximal method of multipliers for convex programming based on second-order approximations

List of Registered Participants



1st Announcement: English
1º Informe: Portuguese

2nd Announcement: English  
2º Informe: Portuguese 

Local Information

– How to go from Intercity Hotel to UFAM: click here

– How to go from Tropical Hotel to UFAM: click here

– How to go from Blue Tree Hotel to UFAM: click here

Inside UFAM, to know how you get to Sumaúna Auditorium from Japiim, click here
And to know how you get to Sumaúna Auditorium from Coroado, click here

Auditório Samaúma – Restaurante Universitário

Auditório Samaúma – Instituto de Ciências Exatas

Aeroporto – Tropical Hotel

Aeroporto – Blue Tree Hotel

Aeroporto – Intercity Hotel

Program at a Glance


Social Programme

Social Programme

I) A welcome cocktail, followed by an artistic show, will be offered free of charge to all participants and spouses on Monday, May 23,at 7:30 PM.

II) On Wednesday, May 25, at 8:30 PM the workshop dinner will take place at a restaurant in Manaus. The dinner fee will appear in forthcoming announcements.

III) On Thursday, May 26, there will be a full day excursion, sailing on a boat along the Negro River until to Meeting of the Waters (Negro and Solimões rivers), one of the most extraordinary phenomena of the Amazon nature. The excursion fee will be informed in forthcoming announcements.
Departure time: 09:00 a.m. / local time
Arrival: 3:00 p.m / local time
Price per person: R$ 150,00
Included: lunch, bilingual tour guide, departure tax.
Payment: In cash or bank transfer 50% with 5 days in advance and the rest in the day of the event.
Important: This activity will take place only with a minimum membership of ten (10) people.
See here

IV) On Saturday, May 28, there will an excursion to the Presidente Figueiredo city, accessed by BR 174 highway and sited 107 km north of Manaus called as waterfalls’ land. Moreover, its area holds ecological reserves, caves, grottos, small creeks and rapids. The excursion fee will be informed in forthcoming announcements.
Departure time: 09:00a.m./local time
Arrival time: 6:00 p.m./local time
Price per person: R$ 210,00
Included: lunch, bilingual tour guide, visit to the waterfalls.
Payment: In cash or bank transfer 50% with 5 days in advance and the rest in the day of the event.
Important: This activity will take place only with a minimum membership of five (5) people.
* Children between 6 to 11 years pay 50% of the value / 0 to 5 years are free of charge


Poster Session

Edvaldo Elias de Almeida Batista (Universidade Federal do Oeste da Bahia)
Enlargement of Monotone Vector Fields and na Inexact Proximal Point Method for Variational Inequalities in Hadamard Manifolds

Gilson do Nascimento Silva (Universidade Federal do Oeste da Bahia)
Unifying the local convergence analysis of Newton’s Method for strongly regular generalized equations

Brazil Health Care and Vaccinations

There is no reciprocal health agreement with the UK or USA. Full insurance is strongly recommended as medical costs are high. The standard of medical care is generally very good in major towns and cities.

Public health care services in Brazil are free of charge, but may only be used by foreign tourists in the event of an emergency. In the event of a medical emergency, call 192 for an ambulance.

Water: Tap water should not be drunk unless boiled or sterilised first. Bottled water should be drunk instead.

Other risks: Dengue fever (which is more prevalent after rain in densely populated areas): Be sure to take the usual precautions, stocking up on mosquito repellent, sunscreen lotion and wearing suitable clothing.

** A yellow fever vaccination certificate is required from all travellers, minimum 10 days before traveling; and also required from travellers, over nine months old arriving from infected regions. Vaccination is strongly recommended for those intending to visit some rural areas.

Practical Health Information:

Zika Virus

How transmission occurs?
The Zika virus is transmitted by the mosquito Aedes aegypti.

What are the symptoms?
The main symptoms of the disease caused by the Zika virus are intermittent fever, skin rash, itching and muscle pain. According to the Dr. Rosana Richtmann (infectious disease specialist), the good news is that the virus Zika is much less aggressive than the dengue virus: there is no record of deaths related to the disease. The evolution is benign and the symptoms usually disappear spontaneously over a period of 3 to 7 days.

What are the known prevention measures?
As the Zika is transmitted by the Aedes aegypti, the same mosquito that transmits dengue and chikungunya, prevention follows the same rules applied to these diseases. Use repellent helps to keep mosquitoes away, avoiding bites, but it is important to remember that the product should be reapplied every 6 hours for its effect to be maintained and it must contain a chemical called DEET. In addition, although there is no official confirmation that there is risk of sexual transmission of Zika (this is being studied), but some experts recommend the use of condoms for at least two weeks during recovery from illness.

How is it treated?
There is no vaccine or specific treatment for the disease. According to Ministry of Health, the cases should be treated with the use of paracetamol or dipyrone to control fever and pain. As the dengue, acetylsalicylic acid (aspirin) should be avoided because of the increased risk of bleeding.
The Zika virus is not contagious, so it is not transmitted from one person to another. The only way to get the virus is by being bitten by Aedes aegypti mosquitoes. The virus can pass from mother to child during pregnancy causing a serious condition called microcephaly, but there is also the suspicion that the Zika can be transmitted through breast milk, causing the infant to develop the symptoms of Zika and also through contact intimate without a condom, but these hypotheses are not confirmed and appear to be very rare.

Additional Activities


Inaugurated on April 1st 1995, The Science Grove Park´s opening celebrated the 40th anniversary of the National Institute for Amazonian Research (INPA). It consist of about 32.000 acres situated at the Ecologic Green Corridor on the mid-west of Manaus urban area. The main objectives of the Science Grove are to develop and promote INPA´s program for technologic, scientific and innovatory vulgarization of Amazonian topics and to offer a leisure option to local population that may contribute to cultural education and environmental awareness.
Some of its attractions are the Log-core Home, the Culture Store House, the EcoHouse and the Indian House.


Postal Address: Instituto Nacional de Matemática Pura e Aplicada 
Estrada Dona Castorina 110, Jardim Botânico
Rio de Janeiro, RJ, CEP 22460-320, Brasil 
E-mail: eventos@impa.br