Scientific talks will be offered to the participants
Fernando P. da Costa, Universidade Aberta; and CEMS, Universidade de Lisboa, Portugal
Joaquim M.C. Correia, DMat, ECT, University of Évora, Portugal
Michell Waldschmidt, Sorbonne Université, France
Oudone Phanalasy, Lao Mathematics Association, Laos
Michael J. Dorff, Brigham Young University, USA
Padmanabhan Seshaiyer , George Mason University, Fairfax, Virginia, Mathematics Education, USA