Our Centre’s Long-Term Engagement with the African Mathematical Community

Over the past years, our research centre has maintained strong and sustained collaborations with mathematicians and academic institutions across Africa. These activities reflect our collective commitment to supporting mathematical research, advanced training, and international cooperation, particularly in regions where access to high-quality supervision remains limited.

Our engagement began several years ago with visits to the African Institute of Mathematical Sciences (AIMS) Ghana, where members of our centre contributed to graduate-level teaching through lecture courses for MSc and PhD students. Further activities included intensive lecture courses in Burkina Faso, supported by the Volkswagen Stiftung (Germany), carried out under challenging circumstances. Despite such difficulties, our group has continued to visit and collaborate with multiple African countries, focusing on capacity building and student support.

Some of these early activities are documented in a research volume edited by members of our group together with international collaborators:

https://link.springer.com/book/10.1007/978-3-030-05657-5

After our centre’s activities expanded to Ghent University, these collaborations continued and strengthened. Notable examples include:

In Ghana, our centre has developed lasting connections with the University of Ghana and the University of Cape Coast. Members of our group have visited both institutions multiple times, delivering advanced lectures and supporting MSc-level training.

Through a Carnegie Corporation of New York (CCNY) grant, Linda Botchway began her PhD at the University of Ghana in 2020. She had previously completed her MSc at AIMS Ghana under supervision linked to our centre, and her PhD work has been supervised within our research network:

After a delay due to maternity leave, her PhD thesis has now been submitted, and the defence is expected to take place soon.

Our collaboration with the University of Addis Ababa has also included PhD supervision and mentoring, sometimes outside formal joint PhD agreements. One such collaboration involved Atile Nega, whose PhD thesis was ready for submission when the COVID-19 pandemic began. Tragically, he passed away shortly before his public defence could be held online.

Many of the students mentioned above were supervised without formal joint-degree frameworks. These activities represent a sustained investment of time and effort by our centre, driven by the recognition that many exceptionally talented students in developing countries face structural barriers to adequate supervision. In several instances, students travelled for days to attend advanced mathematics lectures delivered by members of our group.

In addition to research supervision and teaching, Prof Michael Ruzhansky, for several years, served on the jury of the IBNI Prize for Africa, together with colleagues from France, contributing to the recognition of outstanding mathematical research on the African continent:
https://www.idpoisson.fr/prix-ibni/

Overall, these activities demonstrate our centre’s long-standing commitment to fostering mathematical excellence, international collaboration, and equitable access to advanced mathematical training in Africa.


✨ Congratulations to André Kowacs on Successfully Defending His PhD Thesis! 🎉👨‍🎓

We are thrilled to announce that André Pedroso Kowacs has successfully defended his PhD dissertation jointly at Ghent University and Universidade Federal do Paraná, under the supervision of Profs Alexandre Kirilov and Michael Ruzhansky! 🌟

André began his academic journey with a Bachelor’s degree in Mathematics from UFPR in 2019. He quickly moved forward, embarking on his PhD directly in 2020, and spent 10 months in Belgium working on a joint PhD at our Ghent Analysis and PDE center of Ghent University. His research interests have focused primarily on analysis and partial differential equations, particularly in the context of compact Lie groups. 🌐🔍

His dissertation, titled “Links between regularity and inequalities on compact Lie groups”, presents remarkable results, including:

  • Global hypoellipticity and solvability of first-order “evolution” differential operators with variable complex coefficients, defined on the finite product of compact Lie groups.
  • Conditions for obtaining a “sharp” Gårding inequality for pseudo-differential operators acting on vector-valued functions and sections of homogeneous vector bundles.

This is a major achievement in the field of mathematics, contributing significantly to our understanding of the intricate connections between regularity and inequalities on compact Lie groups. 💡✨

Throughout his academic career, André has been actively involved in the Linear Equations group and the Universal CNPq projects since 2019. His work has resulted in two published papers and six preprints on arXiv. 📚🎓

Congratulations again to André, on this monumental achievement! 👏 👏👏

We are excited to see all the great things he will accomplish in his future endeavors and wish him all the best in his continued journey of academic and professional excellence. 🥳🎉🎊

#PhDDefence #Mathematics #CompactLieGroups #MathematicalResearch #Success #PhDJourney #AndréKowacs #UFPR

IMU-Simons Research Fellowship Award for Developing Countries

Congratulations to Markos Fisseha Yimer on being awarded the IMU-Simons Research Fellowship, a prestigious grant for researchers from developing countries. This fellowship, up to 7,500 USD, will cover his travel, accommodation, and daily expenses for a research visit to our Ghent Analysis & PDE Centre from July 1, 2025, to September 30, 2025.

During his stay, Markos will work on a project titled Levin-Cochran-Lee inequalities on metric measure spaces, under the guidance of Prof. Dr. Michael Ruzhansky. This project aims to make new discoveries in mathematics and is a great opportunity for Markos to build his research skills and experience.

This visit is also about more than just research. It’s a chance for both Addis Ababa University and Ghent University to connect, exchange ideas, and build a stronger relationship that could lead to more collaboration in the future.

Once again, congratulations to Markos on this fantastic achievement!

This is the third IMU-Simons Fellowship that our Ghent Analysis & PDE Center obtained, the previous visitors were Abimbola Abolarinwa from Nigeria, and Narciso Gomes from Capo Verde.

Ethiopia

Special Issue “Singularities in Evolution Equations”

In “Chaos, Solitons & Fractals“, Elsevier

  • Impact Factor: 3.064 
  • 5-Year Impact Factor: 2.597 
  • Source Normalized Impact per Paper (SNIP): 1.186 
  • SCImago Journal Rank (SJR): 0.818

Deadline for submissions: 15 October 2020, or until full

Link to the Special Issue

Various processes in nature are characterized by irregular equations, in particular, evolution ones. Such equations could have chaotic and unexpected behaviours of the solutions, causing singularities. Therefore, they are natural in the sciences. Singularities could appear in different characteristics of the models such as coefficients and data. The initial conditions stand for the data for the evolution equations. By having data and coefficients less regular or, even singular, we are facing the difficulties outside of the tools of the classical analysis. For this, we are developing different approaches and technics to deal with. Here, we are more concentrated in such approaches and technics. One of the technics is hidden in the theory of regularisations. By regularising distributional initial data and coefficients, we arrive at the smooth enough operators. Their further study comes down to well-studied problems. One thing needs to be controlled a regularisation parameter. The Special Issue Singularities in Evolution Equations is collecting new results and trends on these problems.

Potential topics include, but are not limited to:

  • Singular evolution equations and very weak solutions;
  • Partial differential equations with time- and space-irregular coefficients;
  • Hyperbolic and parabolic type equations with distributional data.

Authors are invited to submit original, unpublished papers. Simultaneous submission to other publication venues is not permitted.

Guidelines for authors are the same as for regular issues. The guidelines file is available at https://www.elsevier.com/journals/chaos-solitons-and-fractals/0960-0779?generatepdf=true.

When submitting papers, authors must select VSI: Evolution Equations as the article type.

Link to the Special Issue

Guest Editors

Dr. Michael Ruzhansky (Leading Guest Editor)
Ghent University
Email: Michael.Ruzhansky@UGent.be

Dr. Hemen Dutta
Gauhati University
Email: hemen_dutta08@rediffmail.com

Dr. Niyaz Tokmagambetov
Ghent University
Email: Niyaz.Tokmagambetov@UGent.be

If you work in analysis, there is also still a possibility to submit a paper to the (refereed) volume: Ashyralyev A., Kalmenov T., Ruzhansky M., Sadybekov M., Suragan D. (Eds.) Functional Analysis in Interdisciplinary Applications II, Springer Proceedings in Mathematics & Statistics, Springer, to appear

This volume is broader and not focused on the single topic as much as the special issue above. If you are interested in submitting a paper to this volume, please contact Dr Suragan