Assistant Professor (Mathematics) 

Specializations:

• Operator Theory

•  Convex Optimization

•  Machine Learning 

•  Mathematical Oncology  

usman bello abdulmalik

• B.Sc. Mathematics, Bayero University, Kano

• M.Sc. Mathematics, African University of Science and Technology, Abuja, Nigeria.

• Ph.D. Pure and Applied Mathematics, African University of Science and Technology, Abuja, Nigeria.

Email:  uabdulmalik@aust.edu.ng    

Google Scholar Profile: https://scholar.google.com/citations?hl=en&user=y520ETIAAAAJ&view_op=list_works&sortby=pubdate  

Courses (Being taught at AUST):

• Matrix Theory

• Differential Equations

• Advanced Calculus

• Foundation of Mathematical Analysis II

• Functional Analysis

• General Mathematics I & II

ongoing research projects

• Automated Radiotherapy Treatment Planning Aid (ARTPA): A cloud-based radiobiologically optimized treatment planning assistant with real-time support; A project sponsored by the National Research Grant, Nigeria. Grant No.

• Predictive Modelling and Forecasting of COVID-19 Transmission in Nigeria using Artificial Intelligence: A project supported by Canada's International Development Research Center (IDRC).

• Projective Splitting Methods and its Application to Radiotherapy Planning Treatment.

Dr. usman bello Publications

Since 2015

1.  A.U. Bello, M.O. Nnakwe and A.A. Adam; An Algorithm for Approximating Solutions of Split Hammerstein Equations. Mathematical and Computational Science Volume 9 (2023), Pages 92-101.

2. C.C. Okeke, A.U. Bello; Strong convergence method for monotone inclusion problem with alternating inertial steps. Acta Mathematica Universitatis Comenianae 92 (1), 65-90.

3. L.C. Okereke, A.U. Bello, E.A. Onwukwe; Toward Precision Radiotherapy: A Nonlinear Optimization Framework and an Accelerated Machine Learning Algorithm for the Deconvolution of Tumor-Infiltrating Immune Cells. Cells 11 (22), 3604.

4. A.U. Bello, M. Alka, C.E. Chidume; Self-adaptive forward–backward splitting algorithm for the sum of two monotone operators in Banach spaces, Fixed Point Theory and Algorithms for Sciences and Engineering 2022 (1), 1-16.

5. A.U. Bello, H. Yusuf, N. Djitte; Single-step algorithm for variational inequality problems in 2-uniformly convex banach spaces, Rendiconti del Circolo Matematico di Palermo Series 2(2022), 1-19.

6. A.U. Bello, C.C. Okeke, M. Isyaku, M.T. Omojola; Forward-reflected-backward splitting method without cocoercivity for the sum of maximal monotone operators in Banach space, Optimization,(2022) 1-22.

7. A.U. Bello, M. O. Nnakwe; An Asynchronous Inertial Algorithm for Convex Feasibility Problems with Strict Pseudo-Contractions in Hilbert Spaces. Proceedings of the Edinburgh Mathemat- ical Society(2022)65 (1), 229-243.

8. C.C. Okeke, A.U. Bello; A Strong Convergence Algorithm For Solving Pseudomonotone Variational Inequalities With a Single Projection. The Journal of Analysis(2022)1-23

9. C.C. Okeke, A.U. Bello, L.O. Jolaoso, K.C. Ukandu; Inertial method for split null point problems with pseudomonotone variational inequality problems. Numerical Algebra, Control and Optimization, doi: 10.3934/naco.2021037(2021).

10. A.U. Bello, M.T. Omojola, M.O. Nnakwe; Two methods for solving split common fixed point problems of strict pseudo-contractve mappings in Hilbert spaces with applications. Appl. Set-Valued Anal. Optim., 3 (2021), 75-93.

11. A.U. Bello, M.T. Omojola, J. Yahaya; An Inertial-type Algorithm for Approximation of Solutions of Hammerstein Integral Inclusions in Hilbert Spaces. Fixed Point Theory and Applications (2021) DOI: 10.1186/s13663-021-00691-7.

12. A.U. Bello, M.O. Nnakwe; An Algorithm for Approximating a Common Solution of some Non-linear Problems in Banach Spaces with an Application. Adv Diffee Equ 2021 109(2021) (Springer) https://doi.org/10.1186/s13662-021-03268-1.

13. C.E. Chidume, M.O. Nnakwe and A.U. Bello; An Iterative Algorithm for Solving Split Equality and Variational Inequality Problem for a Class of Nonexpansive-Type Semigroups. Advances in Variational Inequalities (2020), (Accepted).

14. Uba, Markjoe O: Bello, Abdulmalik U; Chidume, Charlse E.; Approximation of Solutions of Hammerstein Equations with Bounded Monotone Maps in Lebesgue Spaces. PanAmer. Math. J. 29(2019), no. 2, 34-53.

15. C.E. Chidume, A.U. Bello, An iterative algorithm for approximating solutions of Hammerstein equations with bounded generalized Phi-monotone mappings, Numerical Functional Analysis (Taylor and Francis) (2019) https://doi.org/10.1080/01630563.2019.1659815.

16. A.U. Bello, C.E. Chidume, M. Isyaku, Approximation of Solutions of Split Inverse Problem For Multi-valued Demi-Contractive Mappings In Hilbert Spaces, Journal of Nonlinear Analysis and Optimization: Theory and Optimization. 11(1) 15-28.

17. C.E. Chidume, A.U. Bello, An Iterative Algorithm for Approximating solutions of Hammerstein equations with Monotone Maps in Banach spaces, Applied Maths and Computation (Elsevier), 313 (2017) 408-417.

18. A.U. Bello, C.C. Okeke, C. Izuchukwu, Approximating Common Fixed Point for Family of Multivalued Mean Nonexpansive Mappings in Hyperbolic Spaces. Advances in Fixed Point Theory (Springer) (2017). 7 (2017), No. 4, 524-543.

19. C.C. Okeke, A.U. Bello, C. Izuchukwu, O.T. Mewomo, Split Equality for Monotone Inclusion Problem and Fixed Point Problem in Real Banach, The Australian Journal of Mathematical Analysis and Applications 14 (2017), No. 2, 1-20.

20. C.E. Chidume, A.U. Bello, B. Usman; Iterative Algorithms for Zeros of Strongly Monotone Lipschitz Maps in Classical Banach Spaces SpringerPlus, 2015, doi 10.1186/s40064015-1044-1, 9 pp.

21. C.E. Chidume, C.O. Chidume, A.U. Bello, An algorithm for Computing Zeros of Generalized Phi-Strongly Monotone and bounded Maps in Classical Banach Spaces, Optimization (Taylor and Francis), (2015) doi:10.1080/02331934.2015.1074686.

22. C.E. Chidume, A.U. Bello, M. A. Onyido, Convergence theorem for a countable family of multi-valued strictly pseudo-contractive mappings in Hilbert Spaces, International Journal of Mathematical Analysis (Hikari) Vol. 9, 2015, no. 27, 1331-1340.

23. C.E. Chidume, M.E. Okpala, A.U. Bello, P. Ndambomve, Convergence Theorems for Finite Family of a General Class of Multi-valued Strictly Pseudo-Contractive Mappings, Fixed Point Theory and Appl. (Springer-Verlag), 2015, DOI 10.1186/s13663-015-0365-7.

24. C.E. Chidume, P. Ndambomve, A.U. Bello, M.E. Okpala, The Multiple-set Split Equality Fixed Point Problem for Finite Family of Multi-valued Demicontractive Mappings, International Journal of Mathematical Analysis (Hikari), Vol. 9, 2015, no. 10, 453-469.

25. C.E. Chidume, P. Ndambomve, A.U. Bello, The Multiple-set Split Equality Fixed Point Problemfor Multi-valued Demicontractive Mappings in Hilbert Spaces, Journal of Nonlinear Analysis and Optimization, Vol. 6, No. 1, (2015), 61-69.

26. C.E. Chidume, A.U. Bello, P. Ndambomve, M.E. Okpala, Strong Convergence Theorem for Fixed Poins of Nearly Uniformly L-Lipschitzian Asymptotically Generalized Hemicontractive Mappings, International Journal of Mathematical Analysis Vol. 9, 2015, no. 52, 2555-2569 (Hikari).

27. C.E. Chidume, A.U. Bello, P. Ndambomve, Strong and ∆-Convergence Theorems for a Finite Family of Demicontractive Mappings in CAT(0) Spaces, Abstr. Appl. Anal. (Hindawi), 2014, Art. ID 805168, 6 pp.

Dr usman bello Notable Achievement

• Acting Director, Charles Chidume Mathematics Institute (Emerging Regional Center of Excellence of the European Mathematical Society), African University of Science and Technology, Abuja, Nigeria from October 2021-to date.

• Director, School of Foundation and Remedial Studies (SFRS), African University of Science and Technology, Abuja, Nigeria from January 2022-to date.

• Acting Dean, School of Science and Science Education, African University of Science and Technology, Abuja, Nigeria from December 2023-to date.

• Head of Department Pure & Applied Mathematics, African University of Science and Technology, Abuja, Nigeria from October 2021-to date.

• Facilitator-General: Professional Diploma in Data Science, African University of Science and Technology Abuja, Nigeria, August 2022-to date.

• Principal Investigator,  National Research Fund (TETFund) Grant ($85,000) Grant No. TETF/ES/DR&D-CE/NRF2021//SETI/SAE/00004VOL.I: Automated Radiotherapy Treatment Planning Aid (ARTPA): A cloud-based radiobiologically optimized treatment planning assistant with real-time support. (Role: Lead Researcher)

• Mathematics Team Lead, Canada's International Development Research Center (IDRC) Grant No. 109559-001 ($22,000): Predictive Modelling and Forecasting of the transmission of COVID-19 in Africa using artificial intelligence (Nigeria case study)”.

• Reviewer: Fixed Point Theory and Application for Science and Engineering; Journal of Nonlinear Science and Application.