Jihad Souissi | Orthogonal Polynomials | Young Scientist Award

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Prof. Jihad Souissi | Orthogonal Polynomials | Young Scientist Award

Faculty of Sciences at Gabes | Tunisia

Prof. Jihad Souissi is a mathematician specializing in orthogonal polynomials, semi-classical structures, and operator-based characterizations, with particular expertise in Dunkl and q-Dunkl operators. His research advances the analytic and algebraic understanding of classical, semi-classical, and q-orthogonal polynomial families through raising and lowering operators, structure relations, differential and difference equations, and operator transformations. He has authored numerous peer-reviewed publications across high-ranking journals, contributing new theoretical frameworks for polynomial characterization, zero-centroid analysis, Appell and q-Appell structures, coherent pairs, and connections between major orthogonal polynomial sequences such as Laguerre, Jacobi, Hermite, and ultraspherical polynomials. His work also explores applications of operator methods to problems in mathematical physics, including boundary-flux control and Stefan-type free boundary problems. In addition to published research, he has produced several preprints expanding semi-classical theory and Dunkl-based formulations. He has presented his findings at international mathematical conferences and seminars and co-edited a scholarly book on orthogonal polynomials and Dunkl operators. Prof. Souissi also serves as a reviewer for multiple international journals, reflecting his active engagement in the global mathematical research community.

Profiles: Scopus | Orcid | Google Scholar

Featured Publications

Souissi, J. (2025). New findings on zero centroids in semi-classical orthogonal polynomials of class one. Annali dell’Universita di Ferrara. Advance online publication.

Alanezy, K. A., & Souissi, J. (2025). Optimal boundary-flux control of a sharp moving interface in the classical two-phase Stefan problem. Axioms, 14(11), Article 840.

Souissi, J., Alaya, M., & Aloui, B. (2025).Ultraspherical polynomials and Hahn’s theorem with respect to a raising operator. Bulletin of the Belgian Mathematical Society – Simon Stevin.

Srivastava, H. M., Souissi, J., & Aloui, B. (2025). Structure relation of the symmetric q-Dunkl-classical orthogonal q-polynomials. Mathematical Methods in the Applied Sciences.

Alanezy, K. A., & Souissi, J. (2025). A Hahn-type characterization of generalized Hermite polynomials through a Dunkl-based raising operator. Mathematics, 13(21), Article 3371.

Calvin Tcheka | Mathematics | Distinguished Scientist Award

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Assist. Prof. Dr. Calvin Tcheka | Mathematics | Distinguished Scientist Award

Professor at University of Dschang, Cameroon

Dr. Calvin Tcheka is a Cameroonian mathematician and Associate Professor at the University of Dschang, where he serves in the Department of Mathematics and Computer Science. With a specialization in Algebraic Topology and Geometry, his academic pursuits bridge pure mathematics with practical applications, particularly in the fields of string theory, network coding, Leibniz algebras, and operads. Over the past decade, he has built a solid reputation through peer-reviewed publications, collaborative international research, PhD supervision, and active participation in the global mathematical community.

Publication Profile 

Scopus

Educational Background 🎓

Dr. Tcheka’s academic journey began at the University of Yaoundé I, where he earned his Bachelor’s degree in Mathematics in 1992. He went on to complete his Master’s degrees in 1993 and 2003. He later earned his Ph.D. in Mathematics in 2009 through a joint program between the University of Yaoundé I and the University of Angers in France. His doctoral studies laid the foundation for his research in homotopy theory and algebraic structures.

Professional Experience 💼

With nearly three decades of academic service, Dr. Tcheka has held several teaching and research roles. From 1995 to 2005, he worked as a Mathematics teacher at the Higher Government School. He then joined the University of Dschang as an Assistant Lecturer in 2005, progressed to Lecturer in 2010, and became an Associate Professor in 2020. In each role, he has combined teaching, supervision, and research, contributing significantly to the mathematical development of the university.

Research Interests 🔬

Dr. Tcheka’s research interests are both theoretical and application-oriented. His core areas include Algebraic Topology, Geometry, and Algebra, particularly focusing on Leibniz algebras, operads, and homotopy theory. He also explores modern applications of topology in cryptography and network coding, as well as the theoretical foundations of string theory. His interdisciplinary research spans pure mathematics and computational theory, often bridging abstract structures with real-world problems.

Awards and Honors🏆✨

Dr. Tcheka is a respected member of the Franco-African International Research Network in Mathematics since 2020 and an ordinary member of the International Center for Pure and Applied Mathematics (CIMPA) since 2021. He has also played leadership roles in the organization of significant international mathematical conferences, including chairing the local organizing committee of the CIMPA School on Topology and Geometry in 2018. His collaborations span leading institutions in France, Belgium, Iran, and the USA, reflecting his broad academic influence and international recognition.

Conclusion🌟

Dr. Calvin Tcheka exemplifies scholarly excellence and leadership in the mathematical sciences. His consistent publication record, international collaborations, and dedicated supervision of PhD students demonstrate a deep commitment to advancing knowledge and mentoring the next generation of mathematicians. His work not only strengthens Cameroon’s academic landscape but also contributes meaningfully to the global mathematical community.

Publications 📚

  1. 🧠 C. Tcheka, A. Kamgam Dayo & G. R. Biyogmam
    “(TLie)-Leibniz algebras and related properties”
    Algebra and Discrete Mathematics, Vol. 36(2), 2023, pp. 243–256
    🔗 DOI: 10.12958/adm2049

  2. 🔐 S. Gomez Nyamssi, E. Foutsa & C. Tcheka
    “First optimal ate pairing for cyclotomic sparse families of pairing-friendly elliptic curves with embedding degree k=5, 7”
    Discrete Mathematics Algorithms and Applications, 2023
    🔗 DOI: 10.1142/S179380923500544

  3. 🧮 G. R. Biyogmam, C. Tcheka & D. R. Kamgam
    “Some properties of ID*-nLiederivations of Leibniz algebras”
    Asian-European Journal of Mathematics, 2021
    🔗 DOI: 10.1142/S1793557122500541

  4. 📝 G. R. Biyogmam & C. Tcheka
    “A note on outer derivations of Leibniz algebras”
    Communications in Algebra, Vol. 49(5), 2021

  5. 🧬 C. Tcheka
    “Cohomology Operations and π-Strongly Homotopy Commutative Hopf Algebra”
    Pure and Applied Mathematics Journal, Vol. 9(2), 2020, pp. 37–45

  6. 🧠 G. R. Biyogmam & C. Tcheka
    “Leibniz algebras with absolute maximal Lie subalgebras”
    Algebra and Discrete Mathematics, Vol. 29(1), 2020, pp. 52–65

  7. 🔄 G. Biyogmam, S. Tchamna Kouna & C. Tcheka
    “From quotient trigroups to groups”
    Quasigroups and Related Systems, Vol. 28, 2020, pp. 29–41

  8. 🔗 C. Tcheka
    “An Algebra Structure on the Hochschild Homology of a Simply Connected Topological Space”
    Algebra Colloquium, Vol. 26(3), 2019, pp. 425–436

  9. 🧩 B. Ndombol & C. Tcheka
    “An application of semi-free resolutions”
    Journal of Homotopy and Related Structures, Vol. 13, 2018, pp. 385–394

  10. 🌐 M. A. Nguemo & C. Tcheka
    “Sheaf Cohomology on Network Codings: Maxflow-Mincut Theorem”
    Applied General Topology, Vol. 18(2), 2017, pp. 219–230