• Editor

    Cahiers de Topologie et Géométrie Différentielle Catégoriques

    Since 2015

  • Referee

    Advances in Mathematics, Applied Categorical Structures, Journal of Geometry, Journal of Pure and Applied Algebra, Quaestiones Mathematicae, Theory and Applications of Categories, Topology and its Applications

  • Reviewer

    AMS Mathematical Reviews

Research Visits Undertaken

  • Belgium 05.2013

    Université catholique de Louvain

    Host: M. Gran

  • Belgium 11.2010

    Université catholique de Louvain

    Host: M. Gran

  • Italy 12.2009

    Università degli Studi di Siena

    Host: A. Ursini

  • Australia 11.2003-04.2004

    University of Sydney

    Host: G. M. Kelly

Research Visitors Received

D. Bourn (France)

Université du Littoral. Visited in November 2011 and November 2015.

M. Gran (Belgium)

Université catholique de Louvain. Visited on a number of occasions, including October 2014.

P.-A. Jacqmin (Belgium)

PhD student from Université catholique de Louvain. Visited from end of September to mid of December 2014.

N. Martins-Ferreira (Portugal)

Instituto Politécnico de Leiria, Portugal. Visited on a number of occasions.

D. Rodelo (Portugal)

Universidade do Algarve. Visited in November 2012 and in November 2013.

A. Ursini (Italy)

Università degli Studi di Siena. Visited on a number of occasions.

T. Van der Linden (Belgium)

FNRS Researcher at Université catholique de Louvain. Visited in the month of November in 2012, 2013, and 2014, as well as May 2012.

International Grant Projects

  • 20152012

    External Consultant

    “Métodos Categoriais em Álgebra Não Abeliana”, Fundação para a Ciência e a Tecnologia (FCT, Portugal) PTDC/MAT/120222/2010

  • 20112010


    “Homological and homotopical properties of algebras and their varieties”, Georgian National Science Foundation GNSF/ST09_730_3-105

  • 20092007

    Task Coordinator and Leading Scientist

    “K-theory, non-commutative geometry, homology theories, homotopy theory, operator and normed Algebras”, INTAS 06-1000017-8609

  • 20092006

    Task Coordinator and Leading Scientist

    “Algebraic and Topological Structures in Homotopical and Categorical Algebra, K-theory and Cyclic Homology”, Georgian National Science Foundation GNSF/ST06/3-004


  • 20142014

    Panel Member

    Stellenbosch University panel for revising the assessment system for undergraduate modules followed by the university

  • Present2011

    Mangement Committee Member

    RUMEUS (Research Unit for Mathematics Education at Stellenbosch University)

  • Present2012

    Program Coordinator

    Stellenbosch University Mathematics Program Coordinator, Mathematical Sciences Program Committee Chair in the first semester of 2012 and since March 2013, and Faculty of Science Program Committee Member

  • Present2011

    Course Convener

    Stellenbosch University Foundations of Abstract Mathematics I and II modules

Conference organization

  • International Conference 2008


    Max Kelly Conference in Category Theory held in Cape Town (South Africa), 21-26 January

  • International Conference 2009


    Category Theory 2009 held in Cape Town (South Africa), 29 June - 4 July

  • Seminars and workshops 2009-Present

    Organizer and co-organizer

    Organizer and co-organizer of seminars and workshops at Stellenbosch University since 2009, including Workshops on Mathematical Structures featuring lectures by invited international speakers

Examination Boards

  • South Africa

    External Examiner

    Undergraduate and postgraduate modules, various universities in South Africa

  • Belgium 2014

    PhD Examination Board Member

    Université catholique de Louvain. Candidate: O. Ngaha Ngaha. Thesis title: Isomorphism theorems and descent in star-regular categories. Supervisor: M. Gran

  • Beglium Since 2014

    Member of the Board of Supervisors

    Université catholique de Louvain. Candidate: P.-A. Jacqmin. Supervisor: E. Vitale

  • South Africa 2013

    PhD Internal Examiner

    Stellenbosch University. Candidate: A. Razafindrakoto. Thesis title: Neighborhood operators in categories. Supervisor: D. Holgate