*Dr. Yaé Ulrich Gaba, Email: yaegaba@acas-yde.org, phone: +229 95 87 22 69*

*Dr. Yaé Ulrich Gaba, Email: yaegaba@acas-yde.org, phone: +229 95 87 22 69*

# Members

Dr. Yae Gaba Ulrich, ACAS, Yaounde, Cameroon and IMSP, Benin

*Dr. Yae Gaba Ulrich, email: yaegaba@acas-yde.org*

##### Dr. Collins A. Agyingi

**Email:** caagyingi@acas-yde.org; collinsagyingi@nwu.ac.za

##### Prof. Binayak S. Choudhury

**Email:** scbinayak@acas-yde.org; binayak@math.iiests.ac.in

Dr. Yae Gaba Ulrich, ACAS, Yaounde, Cameroon and IMSP, Benin

**David HOUNSOULIN**

**Email: dhounsoulin@acas-yde.org**

I was born in Totchangni where I spent most of my childhood. I am an undergraduate student in mathematics and computer science at FAST-NATI under UNSTIM In Benin Republic. I have interest in the application of graph theory and this explains why my bachelor project deals with the coloring of graphs and its applications.

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##### Gbémiga Sylvain IKO.

**Email: sgbemiga@acas-yde.org**

I was born in Benin Rep precisely in the commune of Kétou where I spent most of my childhood. I am a undergraduate student in mathematics and computer science at FAST-NATI under UNSTIM. I have interest on the application of graph theory and my final year project relates to that.

##### Camille GBEHA

**Email: cgbeha@acas-yde.org**

I was born in Tanvè, a small town in the commune of Agbangnizoun, Benin Rep. where I spent most of his childhood until I graduated from high school. Passionate about science at the age of 20, I decides to enroll in Mathematics-Computer Science at the Faculty of Sciences and Techniques of Natitingou. There I will meet great teachers who will accompany me through 3 years exceptional. My interest lies in the application of graph theory, topic for my bachelor project with a focus on the applications of the coloring of graphs.

Dr. Yae Gaba Ulrich, ACAS, Yaounde, Cameroon and IMSP, Benin

**Nestor Sègbégnon HOUNHOUI**

**Email: nshounhoui@acas-yde.org**

I was born in Cotonou, Benin Rep. where I did my primary and high school studies. I am a undergraduate student in mathematics and computer science at FAST-NATI under UNSTIM. I have interest on the application of graph theory, specially in the application of the coloring of graphs , which is actually the topic of my project.

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##### Géoffroy GBAGO

**Email:** ggbago@acas-yde.org

I born in Tanguiéta, Benin Rep. where I grew up. I am a undergraduate student in mathematics-Computer science in Benin. I decided to enroll alongside great scientific researchers. I have an interest in the application of theory graphs and my bachelor project relates to the coloring of graphs and its applications.

##### Sègla Pascal HOWAZOUNKOU

**Email:** sphowazounkou@acas-yde.org

I was born in Porto-Novo where I spent most of my childhood. I am a undergraduate student in Mathematics – Computer Science at FAST-NATI under UNSTIM, in Benin. At the age of 20 I decided to enroll in the rank of scientific researchers. I have an interest in the field of Topology and that in the reason why my undergraduate end of year project relates to: The K-metric space.

Dr. Yae Gaba Ulrich, ACAS, Yaounde, Cameroon and IMSP, Benin

**Victor HOTEGNI**

**Email: vhotegni@acas-yde.org**

born in Akpro-Missérété, I am an undergraduate student in Computer and Applied Mathematics (MIA) at Faculté des Sciences et Techniques (FAST) in Natitingou. I would like to be part of next generation of great Scientific researchers. I have an interest in the topology which relates specifically to K-metric spaces which is the core of my bachelor project.

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##### Emeric Yémalin KINTONOU

**Email:** eykintonou@acas-yde.org

I was born in Vakon, Benin Rep. where I spent my childhood. My interest broadly includes Mathematics and Data processing. I would like to be part of this great community of scientists and researchers. I am currently enrolled in a 3 year program leading to a bachelor in mathematics and computer science. For my final year project, I am working on the topology metric spaces partial as this serves as a bridge to see how mathematical structures are used in computer science.

##### Gnon Loïse TOUNKARA

**Email:** gltounkara@acas-yde.org

I have always been passionate about science and medicine, but I enrolled in a science and technology faculty because it suited best my skills as a mathematician and mathematics computer scientist. I am now at the end of the first degree which leads to a bachelor in fundamental mathematics and computer science. I desire to pursue with graduate studies in analysis or the topology, applied to IT.

# Publications

- Y. U. Gaba, H. Aydi, N. Mlaiki, (ρ,η,μ)-Interpolative Kannan Contractions I, Axioms
**10**, 212 (2021), https://doi.org/10.3390/axioms10030212 - Y. U. Gaba, M. Aphane, V. Sihag, On Two Banach-Type Fixed Points in Bipolar Metric Spaces, Abstr. Appl. Anal.
**2021**, ID 4846877, https://doi.org/10.1155/2021/4846877 - N. Mlaiki, T. Abdeljawad, W. Shatanawi, H. Aydi, and Y. U. Gaba, J. Funct. Spaces ID 5563456, (2021), https://doi.org/10.1155/2021/5563456
- Y. U. Gaba, M. Aphane, H. Aydi, (α,BK)-Contractions in Bipolar Metric Spaces, J. Math. 2021, ID 5562651, https://doi.org/10.1155/2021/5562651
- Y. U. Gaba, E. Karapınar, A. Petrusel, S. Radenović, New Results on Start-Points for Multi-Valued Maps, Axioms
**9**, 141 (2020) - Y. U. Gaba and E. Karapınar, A New Approach to the Interpolative Contractions,
*Axioms*, DOI: https://doi.org/10.3390/axioms8040110**8**, 110 (2019) - Y. U. Gaba, Mix-point property in quasi-pseudometric spaces,
*J. App. Eng. Math.*, DOI: http://jaem.isikun.edu.tr/web/index.php/current/103-vol9no4/464-mix-point-property-in-quasi-pseudometric-spaces**9**, 764 (2019) - Y. U. Gaba, Fixed points on partial metric type spaces,
*Res. Fixed Point Theory Appl. 2019*,ID 2019009 DOI: https://www.researchinthefixedpointtheory.com/wp-content/uploads/2019/08/FPPMTS.pdf - Y. U. Gaba, C. A. Agyingi, Binayak S. Choudhury and P. Maity, GENERALIZED BANACH CONTRACTION MAPPING PRINCIPLE IN GENERALIZED METRIC SPACES WITH A TERNARY RELATION,
*Surveys in Mathematics and its Applications*, DOI: http://www.utgjiu.ro/math/sma/v14/a14_08.html**14**, 159 (2019) - C. A. Agyingi and Y. U. Gaba, qλ -hyperconvexity in quasi-metric spaces,
*Asymmetric Topology and Asymmetric Functional Analysis*,Afr. Mat. (2019) pp 1-14, DOI: https://doi.org/10.1007/s13370-019-00656-5 - Y. U. O. Gaba, Related G-metrics and Fixed Points,
*Topology*, Annals of West University of Timisoara – Mathematics and Computer Science**56**, 64 (2018) DOI: https://doi.org/10.2478/awutm-2018-0005 - Yaé Ulrich Gaba, Quasi-uniform Spaces and U-startpoint.,
*Topology, Geometry and Analysis*,Afr. Diaspora J. Math. (N.S.)**21**, 53 (2018), DOI: projecteuclid.org/euclid.adjm/1523412026 - Yaé Ulrich Gaba, Fixed points of rational type contractions in G-metric spaces,
*Cogent Mathematics & Statistics*(2018), https://doi.org/10.1080 23311835.2018.1444904**5**, 1444904