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:

1. Gastón García from Universidad Nacional de la Plata, Argentina: Introduction to Hopf algebras.
2. Iván Angiono from Universidad Nacional de Córdoba, Argentina: The lifting method.
3. Istvan Heckenberger from Philipps Universiy of Marburg, Germany: Introduction to Nichols algebras.
4. Julia Plavnik from Indiana University, USA: An introduction to tensor and modular categories.
5. Sergey Neshveyev from Mathematics Institute, University of Oslo, Norway: Compact quantum groups.
6. Chelsea Walton from Temple University, USA: Ring-theoretic and homological properties of Hopf algebras and (co)module algebras.

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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. Major themes of the AMNS-2019 conference were: differential equations, nonlinear analyses, mathematical biology, probability, statistics, big data, algebra, topology, mathematical education, numerical analysis, scientific computation, and optimization. 128 talks and 14 posters were presented during the conference.

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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.

− Advanced topics in semi-algebraic geometry and modelization in robot kinematics
− Counting points on algebraic varieties
− Basic algebraic number theory and class field theory
− Fundamental groups in algebraic and arithmetic geometry
− Tate module and abelian varieties
− Quantitative and algorithmic recent results in real algebraic geometry
These fundamental courses describe all theoretical elements needed for the applications in cryptography and robot kinematics which have been developed at the end of the school.

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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 first Biennial International Group Theory Conference was held on 14-18 February 2011 in Ibnu Sina Institute, Universiti Teknologi Malaysia, Johor Bahru, Johor. The second conference was held on 4-8 February 2013 at Dogus University, Istanbul, Turkey, the third Biennial International Group Theory Conference was organized by the Ferdowsi University of Mashhad, Mashhad, Iran on 28-31 January 2015, and the fourth Biennial International Group Theory Conference was held on 23-25 January 2017 at the University of Teknology Malaysia, Kuala Lumpur, Malaysia.

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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. All participants got the occasion to display their research during the poster session.

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The "Quantum Topology and Hyperbolic Geometry Conference" was a five day conference with 20 talks from leading international experts in Quantum Topology and Low-Dimensional Topology.  It was followed by a four day mini-course for young researchers and students. The local researchers and young students greatly benefited from lectures of leading experts in the area of topology and geometry. Mathematical exchanges between local young lecturers with foreign experts not only stimulate their scientific research, but also innovate their teaching at university level.

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The CIMPA school “Hyperplane Arrangements: Recent Advances and Open Problems” in Hanoi introduced a modern and very active area of mathematics to the audience in Vietnam and the region. The school is primarily oriented towards PhD students and young researchers. This CIMPA school and workshop brought together 60 participants, among which about 35-40 percent were from foreign countries. With 6 selected lectures given by well-known specialist in the field and some more invited talks at the workshop, this CIMPA school and workshop was an important event to provide a stimulating intellectual environment for researchers from Viet Nam and neighboring countries in Asia to interact.

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Representation Theory is a central branch of modern mathematics that studies realizations of abstract non-linear structures using classical linear and/or combinatorial concrete structures like matrices, linear operators and quivers. It is a very active and dynamic area, both heavily influenced by important applications to algebra, combinatorics, geometry, topology, analysis, category theory, number theory, mathematical physics and other branches of mathematics and physics.
The aim of this school was to introduce some of the currently most active research topics of the subject mainly to the Iranian algebra community and also to neighboring countries. The emphasis was on background theories and connections to more classical theory. Some of the central topics that were discussed by well-known experts were: support varieties and connection to group representations, triangulated categories, categorical and combinatorial aspects of recent generalizations of tilting theory, and model theoretical aspects of representation theory.

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This school was the sixth "Encuentro Colombiano de Combinatoria (ECCO)” (Colombian Meeting on Combinatorics). Previous meetings took place in Bogotá (2003, 2008, 2012, and 2014), and in Medellín (2016). The main objective of the school was to bring young mathematicians from the region into close contact with international researchers and leading experts in various fields of combinatorics and its applications. The aim was to promote mathematical research among young students in a motivating environment and to consolidate a regional research network in combinatorics. The two weeks of the school consisted of four mini courses, exercise sessions, a Sage Math tutorial, and research talk given by the participants.

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