The “Dias de Combinatoria 2019” conference was held at the University of Cauca, Popayan, Colombia during the period 15-26 July, 2019. During the “Dias de Combinatoria 2019” conference four successful introductory minicourses in enumerative, geometric and algebraic combinatorics took place. These minicourses were held in spanish and they were comprised, each of five lecture sessions and five group-work sessions, during which students worked on problems. Each session was one and a half hours long.

The CIMPA Research Summer School 2019 “Mathematical Models in Biology and Related Applications of Partial Differential Equations” was held at the University of Havana, Cuba during the period 11-21 June, 2019. Mathematical modeling in biology and related domain is becoming of increasing importance in the mathematical community as well as for the other scientists from the point of view of possible applications. The school aimed at presenting some of the current approaches in Partial Differential Equations modeling and mathematical analysis of biological phenomena or related domains.

The 37th SAMSA conference was held at the Botswana International University of Science and Technology (BIUST) in Palapya, Botswana during the period 19-22 November 2018, under the theme "Mathematical Sciences: A Catalyst in Driving a Knowledge-Based Economy". The conference created, among other things, meaningful avenues for new and established researchers to learn, network and present new ideas and problem solving techniques.

The CIMPA School was held in Kenitra, Morocco from July 3 until July 13, 2019. The objective of this CIMPA Research School was to introduce mathematical modeling and management of urban waste, by bringing together, during 10 days, specialists in the field of modeling, mathematical analysis and scientific computation of phenomena linked to this management.

The CIMPA school DaDyBio was successfully held in Dhaka, Bangladesh from June 10 until June 21, 2019. During the CIMPA School six courses of five hours each were delivered during the two weeks. Courses were either theoretical or applied to Biology.

Week 1: Symbolic Dynamics (Nicolas Bédaride) and Hyperbolic Dynamic I (I. Rios) for theoretical courses. Applications of ODEs and Dynamical Systems in Biology (S. Mousset) as an applied course.

The CIMPA school "Hopf Algebras and Tensor Categories", was sussessfully held in Cordoba, Argentina from July 29 until August 5, 2019.

The school's main goals were:
-To introduce students to the area of (pointed) Hopf algebras and tensor categories
-To connect researchers with undergraduate students from Argentina who want to pursue doctoral studies
-To connect Pd.D. Students with researchers to expand their lines of research

All goals were achieved during the conference.

There were six courses in the school:

The Second International Conference of Applications of Mathematics to Non-linear Sciences (AMNS-2019) was successfully held in Pokhara, Nepal from June 27 until June 30, 2019. In addition, just before the conference, a Summer School in Mathematical Biology (SSMB-2019) was held in Kathmandu, Nepal from June 17 until June 26, 2019. The conference attracted 218 participants from 16 different countries from all around the world.

The CIMPA-School "Algebraic Geometry, Number Theory and Applications in Cryptography and Robot Kinematics" took place in Limbé, Cameroon, from July 2-13, 2019. This School offered intensive teaching sessions to graduate students and young researchers from Africa. The topics which were covered were in the Areas of algebraic geometry and number theory.

The 5th Biennial International Group Theory Conference (5BIGTC) 2019 was organized by the Algebra Research Group, Faculty of Mathematics and Natural Sciences ITB, the Indonesian Algebra Society and the Faculty of Mathematics, University of Mashhad. The aim of this conference was to exchange research ideas amongst group theorists and postgraduate students. In addition, specialists in the subject of group theory were able to present their latest research works and encourage interested students to progress and widen their knowledge in the area of group theory.

The conference "Géométrie Algébrique en Liberté (GAeL) " brought together 76 young researchers in algebraic geometry, both PhD students and young postdocs. Among them there were 55 supported participants, 6 global and 2 local organizers. There were three senior speakers. The three invited senior speakers each presented a mini-courses about important modern areas of algebraic geometry. Each mini-course consisted of four lectures, each lasting one hour. In addition to the mini-courses, there were 12 junior talks given by selected participants, presenting their own research.