About:The
worshop intends to
emphasize the incredible potential
of Subsaharian Africa for Science, focusing in Cameroon, in particular,
due to the
the increasing level of collaboration with the University of Sevilla.
Cameroon*, with a growing population with
60% of it below
25 years old,
with French an English as national languages, and already a high level
in Physics, shows that science is already being done but clearly it
will be increasinlingly done by Africans in Africa and abroad. A
relevant example is the group headed by Prof. Clément Tchawoua at the
University of Yaoundé I. This group provides a training platform for
many young researchers in nonlinear physics.
Beyond
cooperation:
Collaboration with Africans is evolving fast from cooperation to a
strategic need for European countries. We encourage the University of
Sevilla to open specific lines of funding for grants to Cameroonians
and other African students to perform their MSc, PhD and postdoc at the
University of Sevilla.
Organizers: Juan F.R. Archilla, Universidad de Sevilla, Alain Bertrand Togueu Motcheyo, Université de Yaoundé I.
Funding: The workshop acknowledges VIIPPITUS-2025. III.3A. for funding the travel and stay of Prof. Motcheyo in Sevilla.
Speakers program and titles Book of abstracts
- Session 1: Session chair: Julia Cantisan Gómez, Universidad de Huelva
- 9:15-9:30 Opening Alain Bertrand Togueu Motcheyo.
- 09:30-10:00 Juan FR Archilla, wth J Bajārs, S Flach, Quasi-exponential thermal decay of breathers in nonlinear lattices.
- 10:00-10:30 Eder Batista Tchawou Tchuisseu. Control of the electric grid via dynamic demand control
- 10:30-11:00 Niurka
Rodríguez Quintero, with Bernardo Sánchez-Rey, David Mellado-Alcedo. Stability of solitons in the parametrically
driven and damped nonlinear Dirac equation
- 11:00-11:30 Joël François Tsoplefack, with Jesús Cuevas-Maraver, Faustino Palmero Acebedo. Splitting of discrete solitons after collision with delta-like impurities in nonlinear waveguide arrays
- Coffee break
- Session chair: Niurka Rodríguez Quintero, Universidad de Sevilla
- 12:00-12:30 Julia Cantisan, with Alexandre Rodríguez-Nieto, Jesús M Seoane, Miguel AF Sanjuán. Transient dynamics for a searcher trapped in a potential well
- 12:30-13:00 Jesús Cuevas-Maraver. 2D breathers in sine-Gordon equation: there’s life beyond integrability
- 13:00-13:30 Alain Bertrand Togueu Motcheyo, with Masayuki Kimura, Yusuke Doi, Juan FR Archilla. Discrete rogue waves generated by supratransmission
- 13:30-14:00 Faustino Palmero Acebedo, with Ricardo Chacón. Autoresonance in linear and nonlinear damped-driven oscillators
- Closing: 14:00-14:10 Juan FR Archilla
- Socializing lunch at Cafetería de Informática.
Thursday, May 29, 10-14 am. Departament of Applied Physics I. G0.83
- Session chair: Faustino Palmero Ramos
- 10:00 Opening: Juan FR
Archilla
- 10:15 Jesús Cuevas-Maraver, with Julia Cantisan. Fractional kinks and breathers
- 10:45 Juan
FR Archilla, with Masayuki Kimura, Yusuke Doi, VJ Sánchez-Morcillo. Time crystals. A space-time modulated system.
- 11:15 Eduardo
Ariel Menéndez Proupin. Molecular dynamics of hydrogen bonds.
Application to materials used in optoelectronics.
- 11:45-12:15 Coffe break
- Session chair: Faustino
Palmero Acebedo
- 12:15-12:45 Alain Bertrand Togueu Motcheyo, with Juan FR Archilla. Microbubbles and prenatal scans in Africa
- 12:45-13:15 Francisco
Vega Narváez. Women and Science in Africa (in Spanish)
- Socialising lunch at Cafetería del Instituto de Idiomas
*Note 1:
Cameroon has 4.5 children per woman. Official languages are
French and English, common languages in Science. Spanish being very
often learnt as an optional language. A 66% percent of the
population is Christian, largely Catholic. The proximity of
French to Spanish, which has often been already studied a few years,
and the familiarity with Christian culture, implicate a
very easy adaptation to study and work in science in Spain.
Note 2: With the Maghreb approaching rapidly or already below replacement birth rate, the growth potential and the population of young researchers will fast move to Subsaharian Africa. It is now the time to establish solid links that will last and keep the research in Spain at the level the XXI century demands.
Prof. Tchawoua's group: Prof. Clément Tchawoua was the PhD supervisor for Lecturer Alain B. Togueu Motcheyo, o-organiser of the workshop. Alain B. Togueu Motcheyo co-supervised Falone Asseng Manga and Clerk de Ville Yabuouke Mako for their master's theses. The pictures below demonstrate the increasing presence of women in physics in Cameroon.

MSc defense of Master graduate Falone, to her left Profs. Djuidje Kenmoe, Tchawoua,
Dr Togueu (Falone's co-supervisor) and to her right Prof. Siewe Siewe (also Falone's co-supervisor)

MSc defense of Master graduate Mako, to her left Profs. Fewo, Djuidje Kenmoe, Mako and Dr.Togueu (Mako's co-supervisor) and Prof. Tchawoua (also Mako's co-supervisor)
Note 2: With the Maghreb approaching rapidly or already below replacement birth rate, the growth potential and the population of young researchers will fast move to Subsaharian Africa. It is now the time to establish solid links that will last and keep the research in Spain at the level the XXI century demands.
Prof. Tchawoua's group: Prof. Clément Tchawoua was the PhD supervisor for Lecturer Alain B. Togueu Motcheyo, o-organiser of the workshop. Alain B. Togueu Motcheyo co-supervised Falone Asseng Manga and Clerk de Ville Yabuouke Mako for their master's theses. The pictures below demonstrate the increasing presence of women in physics in Cameroon.

MSc defense of Master graduate Falone, to her left Profs. Djuidje Kenmoe, Tchawoua,
Dr Togueu (Falone's co-supervisor) and to her right Prof. Siewe Siewe (also Falone's co-supervisor)

MSc defense of Master graduate Mako, to her left Profs. Fewo, Djuidje Kenmoe, Mako and Dr.Togueu (Mako's co-supervisor) and Prof. Tchawoua (also Mako's co-supervisor)

