Full Member
Felicia Obiageli Isiogugu
Membership since:
2025
Field of activity:
Degrees:
2014
Doctorate Mathematical sciences
Mathematics
2006
Master Mathematical sciences
Mathematics
2000
Undergraduate Mathematical sciences
Mathematics
Publications resulting from Research
1. F. O. Isiogugu and M. O. Osilike, Convergence theorems for new classes of multivalued hemicontractive-type mappings, Fixed Point Theory and Applications (2014) 2014:93
2. F. O. Isiogugu, (2013) Demiclosedness Principal and Approximation Theorems for Certain Classes of Multivalued Mappings in Hilbert Spaces, Fixed Point Theory and Applications 2013:61
3. M. O. Osilike, F. O. Isiogugu, F. U. Attah, (2013) Strong Convergence of a Modified Ishikawa Iterative Algorithm for Lipschitz Pseudocontractive Mappings, J. Appl. Math. Infomatics, 31,( 3-4), 565-575
4. Isiogugu, F. O. and Osilike, M. O. (2012) Fixed Point and Convergence Theorems for Certain Classes of Mappings, J. Nigerian Math. Soc., 31, 147-165.
5. Isiogugu, F. O., Udomene A., Osilike M. O., (2011) Approximation of Common Solutions of Equilibrium and Fixed Point Problems for Certain Class of Mappings in Hilbert Spaces, J. Nigerian Math. Soc., 30, 179-194.
6. Osilike, M. O. and Isiogugu, F. O., (2011) Weak and Strong Convergence Theorems for Nonspreading-type Mappings in Hilbert Spaces, Nonlinear Analysis 74, 1814 - 1822.
7. Osilike M.O., Isiogugu, F. O. and Nwokoro, P.U. (2008) Hybrid Iteration Method for Fixed Points of k-Strictly Pseudocontractive Mappings of Browder-Petryshyn Type, J. Nigerian Math. Soc., 27, 91-108.
8. Osilike, M. O. Isiogugu, F. O. and Nwokoro, P.U., (2007) Hybrid Iteration Method for Fixed Points of Nonexpansive Mappings in Arbitrary Banach Spaces, Fixed Point Theory and Applications, Article ID 64306, 7 pages, doi:10.1155/2007/64306.
9. Osilike, M. O. and Isiogugu, F. O., (2005) Fixed Points of Asymptotically Φ-Demicontractive Maps in Arbitrary Banach Spaces, Pan- American Mathematical Journal, 15(3) 59 – 67.
10. Isiogugu, F. O., (2016) On approximation of fixed points of multivalued pseudocontractive mappings in Hilbert spaces, Fixed Point Theory and Applications, 2016:59
DOI 10.1186/s13663-016-0548-x
DOI 10.1186/s13663-016-0548-x
11. Isiogugu, F. O., (2016) Approximation of a Common Element of the Fixed Point Sets of Multivalued Strictly Pseudocontractive-Type Mappings and the Set of Solutions of an Equilibrium Problem in Hilbert Spaces , Abstract and Applied Analysis Vol. 2016 , DOI 10.1155/2016/3094838
.
12. Felicia Obiageli Isiogugu, Paranjothi Pillay and Dharmanand Baboolal, (2016) Approximation of a common element of the set of fixed points of multi-valued type-one demicontractive-type mappings and the set of solutions of an equilibrium problem in Hilbert spaces, Journal of Nonlinear and Convex Analysis, 17(6), 1181-1197.
12. Felicia Obiageli Isiogugu, Paranjothi Pillay and Dharmanand Baboolal, (2016) Approximation of a common element of the set of fixed points of multi-valued type-one demicontractive-type mappings and the set of solutions of an equilibrium problem in Hilbert spaces, Journal of Nonlinear and Convex Analysis, 17(6), 1181-1197.
13. Felicia Obiageli Isiogugu, Paranjothi Pillay and Micah Okwuchukwu Osilike, (2016) On approximation of fixed points of multi-valued quasi-nonexpansive mappings, Journal of Nonlinear and Convex Analysis, 17(7), 1303-1310
14. F. U. Ogbuisi, L. O. Jolaoso, and F. O. Isiogugu (2019), A Halpern-Type Iteration Method for Bregman Nonspreading Mapping and Monotone Operators in Reflexive Banach Spaces Journal of Mathematics (2019), ID 8059135.
15. Chibueze Christian Okeke, Lateef Olakunle Jolaoso, Felicia Obiageli Isiogugu and Oluwatosin Temitope Mewomo (2019), Solving split equality equilibrium and fixed point problems in Banach spaces without prior knowledge of the operator norms, Journal of Nonlinear and Convex Analysis, 20(4) 2019.
16. Izuchukwu, C., Isiogugu, F. O. and Okeke C. C. (2019), A new viscosity-type iteration for a finite family of split variational inclusion and fixed point problems between Hilbert and Banach spaces, Izuchukwu et al. Journal of Inequalities and Applications (2019)
17. F. O. Isiogugu, P. Pillay and O. Uzoma-Oguguo, Strong Convergence of a Selection of Ishikawa-Reich-Sabach-type Algorithm, Filomat 33:6 (2019), 1505–1516
18. F. O. Isiogugu, P. Pillay and P. U. Nwokoro, On Computability and Applicability of Mann-Reich Sabach-Type Algorithms for Approximating the Solutions of Equilibrium Problems in Hilbert Spaces, Abstract and applied Analysis,(2018) ID 7218487
19. C. Izuchukwu, C. C. Okeke and F. O. Isiogugu (2018), A viscosity iterative technique for split variational inclusion and fixed point problems between a Hilbert space and a Banach space, J. Fixed Point Theory Appl. (2018) 20:157.
20. F. O. Isiogugu, P. Pillay and E. E. Chima, Approximation of the Common Solution of equilibrium Problems and Fixed Point Problems of Multi-valued Pseudocontractive-type Mappings in Hilbert Spaces, Global Journal of Pure and Applied Mathematics 13(12) (2017), 8387–8407
21. . F. O. Isiogugu, P. Pillay, C.C. Okeke and F. U. Ogbuisi, A Modified Reich-SabachIteration Scheme for Approximating a Common Element of the Solutions of Equilibrium Problems and Fixed Point Problems in Hilbert Spaces , Global Journal of Pure and Applied Mathematics 12( 6 ) (2016), 5185–5204
11th International Conference on Fixed Point Theory and Its Appliocations
2025
Galatasaray University, Istanbul, Turkey11th International Conference on Fixed Point Theory and Its Appliocations
2025
Galatasaray University, Istanbul, Turkey 33th Annual Conference of the of Nigerian Mathematical Society
2025
African University of Science and Technology, Abuja , Nigeria. May 27-30, (2014)). South African Mathematical Society 2012 Annual Congress
2025
Stellenbosch University, Cape Town, South Africa4 30th Annual Conference of the Nigerian Mathematical Society
2025
Federal University of Science and Technology, Minna 5. 27th Annual Conference of the Nigerian Mathematical Society
2025
Univ. of Port Harcourt, River State Nig., River State, Nigeria24th Annual Conference of the Nigerian Mathematical Society,
2025
Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria 11th Edward A. Bouchet\ Abdusalam Regional College on Functional Analysis and Its Applications to Differential Equations,
2025
Accra GhanaSchool on Nonlinear Differential Equations
2025
I. C. T. P., Miramare, Trieste-Italy 9. 23rd Annual Conference of the Nigerian Mathematical Society
2025
Ebonyi State University, Abakaliki, Nigeria