AFRICAN MATHEMATICS SEMINAR

AFRICAN MATHEMATICS SEMINAR

Mathematics for Development

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OUR AIM

AfMS aims at a weekly seminar for the whole of Africa, alternating through the different countries while giving different regions their chance to host the seminar.

The main goal of AfMS is building mathematical networks across Africa and showcasing African mathematical talent. In practice, this means speakers will mostly hail from Africa, or have a strong relationship with African mathematics. But not necessarily always. The organizing team will include distinguished speakers every now and then for networking and research exchange with the rest of the world.

DO YOU WISH TO PARTICIPATE AT AfMS?

The African Mathematics Seminar will takes place online via ZOOM in English.

To participate and automatically join our mailing list, please register we send you a seminar link:

REGISTER HERE

Please feel free to contact one of our seminars organizers directly for more information.

Date Time in EAT Host Speaker Title and Zoom Link
27 May 2020 15:00 Jongaro Elvice Omondi Low dimensional Hom-Lie algebras
3 June 2020 15:00 Jongaro Eric Bojs Quantifying Traffic Congestion in Nairobi: A Topological Approach
10 June 2020 15:00 David Fufa Beyene
Further investigations on a permutation code introduced by Mantaci and Rakotondrajao.
17 June 2020 15:00 David Geoffrey Mboya Projective fibrations through bigraded rings in low dimension
24 June 2020 15:00
Iara
Abdelnasir Bongo A Mathematical Model for the Transmission of Corona Virus Disease (COVID-19) in Sudan
1 July 2020 15:00
Iara
Michael WemyssTBA
8 July 2020 15:00
Bruce
Sogo Pierre Sanon On the computation of polarized class groups of CM-Fields
15 July 2020 15:00
Bruce
Peter SarnakTBD
22 July 2020 15:00
Layla
Marta Sanz-SoléTBA
29 July 2020 15:00
Layla
Bertrand Teguia A variant of van Hoeij’s algorithm for computing hypergeometric term solutions of holonomic recurrence equations
5 August 2020 15:00 Praise Shizuo KAJIGeometry of the configuration space of Kaleidocycles
12 August 2020 15:00TBD TBA TBA
19 August 2020 15:00 TBD TBA TBA
19 August 2020 15:00 TBD TBA TBA
26 August 2020 15:00 TBD TBA TBA

AfMS CALENDAR

SCHEDULED TALK, WEDNESDAY 24 JUNE 2020

  • Title: A Mathematical Model for the Transmission of COVID-19 in Sudan
  • Speaker: Abdelnasir Bongo
  • Affiliation: University of Khartoum

Abstract:
The currently circulating Coronavirus disease 2019 (COVID-19) has reached Sudan by the mid of March 2020 or earlier. From the onset of the virus arrival, the government of Sudan has allocated isolation units across the country and gradually placed a series of measurements to prevent the disease from widespread community transition. In this talk, we will present a mathematical model for the transmission of COVID-19 in Sudan, using a modified version of SEI framework. We placed emphasis on quantifying the impact of the control measurements and the rate of case detecting in slowing down the spread of the disease. We will discuss the model results and consider other simulating scenarios.

YOUTUBE LIVECAST

PREVIOUS TALKS & ABSTRACTS

NEWS ON AFMS RADAR

  • Candidate: Stanislas Muhinyuza (SU and UR, Rwanda)
  • Title: Statistical Inference of Tangency Portfolio in Small and Large Dimension.
  • Date: Wednesday, June 10, 2020,
  • Time: 1.00 pm – 3.00 pm
  • Opponent: Dietrich von Rosen (Swedish University of Agricultural Sciences and Department of Mathematics, Linköping University).

More details are available at See https://www.math.su.se/om-oss/evenemang/disputation-stanislas-muhinyuza-1.501548

ORGANIZERS

Organisers and Hosts
Jared Ongaro, University of Nairobi
Bruce Bartlett, Stellenbosch University
Juma Kasozi, Makerere University
Layla Sorkatti, University of Khartoum
David Ssevviiri, Makerere University
Praise ADEYEMO, University of Ibadan
Eunice Mureithi, University of Dar es salaam
Mubanga Lombe, University of Zambia
Tilahun Abebaw, Addis Ababa University
Celestin Kurujyibwami, University of Rwanda
Iara Gonçalves, Eduardo Mondlane University
Hamidou TOURE, University of Ouagadougou
James Makungu, University of Dar es salaam
Othow O. Giel, University of Juba
Zouhaïr Mouayn, Sultan Moulay Slimane University
TALKS & ABSTRACTS

24 June 2020

  • Title: A Mathematical Model for the Transmission of COVID-19 in Sudan
  • Speaker: Abdelnasir Bongo
  • Affiliation: University of Khartoum

Abstract:

The currently circulating Coronavirus disease 2019 (COVID-19) has reached Sudan by the mid of March 2020 or earlier. From the onset of the virus arrival, the government of Sudan has allocated isolation units across the country and gradually placed a series of measurements to prevent the disease from widespread community transition. In this talk, we will present a mathematical model for the transmission of COVID-19 in Sudan, using a modified version of SEI framework. We placed emphasis on quantifying the impact of the control measurements and the rate of case detecting in slowing down the spread of the disease. We will discuss the model results and consider other simulating scenarios.

17 June 2020

  • Title: Projective fibrations through bigraded rings in low dimension.
  • Speaker: Geoffrey Mboya
  • Affiliation: University of Oxford

Abstract:

Scrolls play a central role in construction of varieties such as K3 surfaces and Fano 3-folds. I will define scrolls in a general toric set-up and describe line bundles on them with accessible examples. Using this background, I will introduce a set-up of probing the geometry of certain projective fibrations polarized by a pair of divisors, one ample and one relatively ample, which together embed the fibration into a “relative key variety” over a base.

Finally, I will give an informal insight on why one would care about this kind of mathematics.

10 June 2020

  • Title: Further investigations on a permutation code introduced by Mantaci and Rakotondrajao.
  • Speaker: Fufa Beyene
  • Affiliation: Addis Ababa University

Abstract:

Permutation codes are interesting because certain algorithms perform better over the codes (vectors) than they do over the permutations themselves. Codes allow for instance to implement efficient algorithms for the exhaustive generation of all permutations or of some given classes of them. To do so, one has often to “read” the properties of the permutation in its code and this gives birth to interesting combinatorial problems.

In 2001, R. Mantaci and F. Rakotondrajao introduced a new code (M-R code) for permutations and in this talk we present some investigations we have conducted over this code and results we have found.

See a detailed abstract here

3 June 2020

  • Title: Quantifying Traffic Congestion in Nairobi: A Topological Approach
  • Speaker: Eric Bojs
  • Affiliation: KTH Royal Institute of Technology in Stockholm, Sweden

Abstract:

African cities are growing. In conjunction with economic prosperity, cities are experiencing what seems to be a never-ending traffic problem. This project aims to give insight into a novel approach for quantifying car traffic in those cities. This is necessary to improve efficiency in resource allocation when trying to fix traffic.

In the form of a case study in Nairobi, the approach consists of a method which relies on topics from the field of Topological Data Analysis, together with the use of large data sources from taxi services in the city. With this, both qualitative and quantitative insight can be given about the traffic. The method was proven useful for understanding how traffic spreads, and to differentiate between levels of congestion: quantifying it.

27 May 2020

  • Title: Low-dimensional Hom-Lie algebras
  • Speaker: Elvice Ongong’a
  • Affiliation: University of Nairobi and Mälardalen University, Sweden

Abstract:

Hom-Lie algebras are considered to be generalization of Lie algebras by having an additional linear map, the twisting map. This gives a generalization of the Jacobi identity into Hom-Jacobi identity. In this talk, we give some preliminaries on Hom-Lie algeras of low dimension and describe isomorphisms of such algebras. We further describe the dimension of the space of possible linear endomorphisms (twists) that turn skew-symmetric low-dimensional algebras into Hom-Lie algebras.

ACKNOWLEDGEMENT

Participating Networks and Universities

Umbrella Organizations

Participating Institutions

PREMIER SUPPORTING PARTNERS

International Science Programme and Linköping University, Sweden