Homepage of Plinio G. P. Murillo


Universidade Federal Fluminense
Instituto de Matemática and Estatística
Rua Prof. Marcos W. de Freitas Reis, S/N
Campus de Gragoatã
24210-201, Niterói, RJ, Brazil

Office:  Bloco G, 5th Floor, Office 30
E-mail:  plinioguillel@gmail.com

I am a Professor Adjunto of the Instituto de Matemática e Estatística at the Universidade Federal Fluminense, working in the Departamento de Matemática Aplicada in Brazil. My mathematics interest lie in the interplay between algebra and geometry and their connections with other areas of mathematics such as topology and number theory. My research focuses on the geometric properties of arithmetic groups, and their associated locally symmetric spaces which provides a rich source of these connections. More about me can be found in my CV, and in my Curriculo Lattes.

Previously, I was a Research Fellow in the School of Mathematics at KIAS, South Korea. Before moving to Seoul, I was a post-doctoral researcher (Assistant 1) at Universität Bern in Switzerland, working in the group of Prof. Vincent Emery. I finished my PhD in May 2017 at IMPA under the guidance of Prof. Mikhail Belolipetsky. I received my M. Sc. degree also from IMPA in 2013. Before that I was an undergraduate at Universidad del Valle, under the supervision of Prof. Alvaro Garzón.



  1. Systole of congruence coverings arithmetic hyperbolic manifolds (with an appendix by Cayo Dória and Plinio G. P. Murillo). Groups Geom. Dyn. 13 (2019), 1083--1102, DOI: 10.4171/GGD/515
  2. On growth of systole along congruence coverings of Hilbert modular varieties. Algebraic & Geometric Topology 17-5 (2017), 2753--2762. DOI: 10.2140/agt.2017.17.2753.
  3. On arithmetic manifolds with large systole. PhD Thesis, IMPA 2017.


Seminars Organized

In 2019, I was a co-organizer of the Three W's Seminar at KIAS.

From August 2014 to December 2016, I was organizing the Coloquio dos Alunos, a students' seminar at IMPA together with Adriana Sánchez. Every Friday diverse topics were presented in an accessible way to a broad audience. You can see the program of this and other seminars at IMPA here.


Conferences Organized

Together with Inkang Kim I am organizer of the workshop Hyperbolic Geometry, Spectral Geometry and related topics , April 15-19, 2019 at KIAS.

Together with Heber Mesa and Luisa Higueras, I organized the fourth version of CONVImaTE at Universidad del Valle, Colombia in December 19-21, 2018.

Together with Heber Mesa and Alexander Zamudio, I organized the third version of CONVImaTE at Universidad del Valle, Colombia in December 19-20, 2017.

Together with Luisa Higueras, Diego Velasco and Miguel Vargas, I organized CONVImaTE at Universidad del Valle, Colombia from December 16-21, 2015. We also organized a second version in December 15-16, 2016.



From February to June 2018 I was assistant of Prof. Thomas Wihler in the course Komplexe Analysis.

From September to December 2017 I was assistant of Prof. George Metcalfe in the course Analysis 1.

From March to June 2017 I was teaching assistant of Prof. Jorge Vitório Pereira in the course Complex Analysis.

From January to February of 2017 I was teaching assistant of Prof. Luiz Henrique Figueiredo in the course Introduction to Linear Algebra. Information about the course, including exams and lists of exercises, can be found here.




Vanessa Rodrigues's website


Grupo Niche