Dr. Chizoba Agatha Nnubia
Dr. Chizoba Agatha Nnubia is a READER in MATHEMATICS Department, Faculty Of Physical Sciences in Nnamdi Azikiwe University
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Staff Profile
I am Nnubia, Agatha Chizoba (PhD) of Department of Mathematics, Nnamdi Azikiwe University Awka. Anambra state, Nigeria.
Personal Information
Email: | |
Phone: | |
Address: | Mathematics, Faculty Of Physical Sciences, Nnamdi Azikiwe University, Awka. |
Faculty/Unit: | FACULTY OF PHYSICAL SCIENCES |
Department/Sub-Unit: | MATHEMATICS |
Social Profiles
Interest Areas
Academic Qualifications
| Degrees / Basic Certificates | |
|---|---|
| 1 | Nnamdi Azikiwe University, Awka. (Doctor of Philosophy, February, 2018) September, 2006 to February, 2018 Functional Analysis |
| 2 | Nnamdi Azikiwe University Awka. (Doctor of Philosophy, August, 2016) October, 2006 to February, 2018 Ph.D.Mathematics. Functional Analysis |
| 3 | Nnamdi Azikiwe University, Awka. (Master Degree, April, 2004) September, 2021 to April, 2004 Numerical And Functional Analysis |
| 4 | University of Benin, Benin City. (Bachelor Degree, February, 1998) September, 1993 to July, 1997 Mathematics/Education |
| 5 | College of Education Nsugbe. (NCE, June, 1992) September, 1989 to June, 1992 Mathematics/ Integrated Science |
| 6 | Ozara Akukwa Technical School Umuchu. (SSCE, June, 1988) September, 1982 to June, 1988 |
| 7 | Central, School Umuchu. (FSLC, February, 1986) March, 1976 to July, 1982 |
Relevant/Working Experience
| 1 | External Examiner, University of Nigeria Nsukka October, 2023 to November, 2023 |
| 2 | Acting Head of Department, Department of Mathematics Nnamdi Azikiwe University Awka February, 2021 to February, 2022 |
| 3 | Head of Department, Department of Mathematics Nnamdi Azikiwe University October, 2019 to February, 2021 |
| 4 | Head of Department, Department of Mathematics Nnamdi Azikiwe University Awka October, 2019 to January, 2021 |
| 5 | DEPARTMENTAL BOARD SECRETARY, NNAMDI AZIKIWE UNIVERSITY October, 2018 to October, 2019 |
| 6 | ACADEMIC ADVISOR (100 LEVEL), NNAMDI AZIKIWE UNIVERSITY October, 2018 to October, 2019 |
| 7 | COORDINATOR DEPARTMENTAL SANDWICH PROGRAMME, NNAMDI AZIKIWE UNIVERSITY (MATHEMATICS DEPARTMENT) October, 2018 to October, 2019 |
| 8 | DEPARTMENTAL WELFARE SECRETARY, NNAMDI AZIKIWE UNIVERSITY (MATHEMATICS DEPARTMENT) October, 2018 to October, 2019 |
| 9 | MEMBER, RESULT COMPUTATION COMMITTEE, NNAMDI AZIKIWE UNIVERSITY (MATHEMATICS DEPARTMENT) October, 2018 to October, 2019 |
| 10 | Departmental Coordinator Sandwich Progamme, Department of Mathematics Nnamdi Azikiwe University Awka October, 2018 to October, 2019 |
| 11 | Senior Lecturer, Nnamdi Azikiwe University Awka October, 2018 to Present |
| 12 | ACADEMIC ADVISOR (100 LEVEL), NNAMDI AZIKIWE UNIVERSITY (MATHEMATICS DEPARTMENT) January, 2017 to October, 2018 |
| 13 | Level Adviser 400 Level, Department of Mathematics Nnamdi Azikiwe University Awka January, 2017 to January, 2018 |
| 14 | Member, Committee on Annual Lecture, Faculty of Physical Science Nnamdi Azikiwe University Awka May, 2016 to June, 2018 |
| 15 | Departmental Coordinator Sandwich Progamme, Department of Mathematics Nnamdi Azikiwe University Awka January, 2016 to October, 2018 |
| 16 | Member, Committee on Annual Lecture, Faculty of Physical Science Nnamdi Azikiwe University Awka July, 2015 to May, 2016 |
| 17 | Lecturer I, Nnamdi Azikiwe University Awka November, 2009 to September, 2018 |
| 18 | EXAM OFFICER, NNAMDI AZIKIWE UNIVERSITY (MATHEMATICS DEPARTMENT) August, 2007 to October, 2008 |
| 19 | Lecturer 11, Nnamdi Azikiwe University Awka November, 2006 to October, 2009 |
| 20 | Assistant Lecturer, Nnamdi Azikiwe University Awka November, 2005 to November, 2006 |
| 21 | Part time lecturer, Nwafor Orizu College of Education November, 2003 to January, 2005 |
Creative Output
| Books | |
|---|---|
| 1 | JUSTINA M.IKPEGBU, ANASO J.CHINWEZE, PRECIOUS O. IBEAKUZIE, AGATHA C..NNUBIA. (2018, January) INTRODUCTION TO LINEAR ALGEBRA NEW CREST PUBLISHERS, AMERICAN QUARTERS, ONITSHA, ISBN;978-978-951-134-1 |
| 2 | J.M IKPEGBU, B.C UGWU, E.S ENEMCHUKWU, A.C NNUBIA, C.A UZUKE AND E.I UMEH. (2003, January) INTRODUCTORY MATHEMATICS FOR COLLEGES AND UNIVERSITY VOLUME 1 LANO PUBLISHERS ENUGU |
| Book Chapters | |
| 1 | A.C NNUBIA. (2018, January) PROBABILITY THEORY, PERMUTATION AND COMBINATION ; INTRODUCTORY MATHEMATICS FOR COLLEGES AND UNIVERSITY IMMACULATE BUSINESS SUPPORT SERVICES 4 AKU STREET OGUI LAYOUT, ENUGU., ISBN;978-978-036-376-9, pp 267-301 |
| 2 | A.C NNUBIA. (2013, January) INDICES, LOGARITHMS, SURDS, COMPLEX NUMBERS AND MODULAR ARITHMETIC: INTRODUCTORY MATHEMATICS FOR COLLEGES AND UNIVERSITY NEW CREST PUBLISHERS, AWKA, ISBN: 978-932-053-0 |
| 3 | OBI O.C, NNUBIA A.C. (2006, January) (PLANE GEOMETRY) A REMEDIAL COURSE BOOK FOR TERTIARY INSTITUTIONS VOL 2 SYMAC PRINTING AND DESIGN LIMITED ONITSHA, ISBN:978-070680-2, Vol. 2, pp 43-58 |
| Journal Articles | |
| 1 | AGATHA CHIZOBA NNUBIA,, NKIRUKA MARIA-ASSUMPTA AKABUIKE, CHIKA MOORE. (2024, September), "Iterative Procedure For Finite Family of Total Asymptotically Nonexpansive Maps(TAN)", European Journal of Mathematics and Statistics, Vol. 5, (Issue 5), pp 1-6 |
| 2 | Agatha Chizoba Nnubia, Austine Nduaguibe, Ugochukwu Ofordile, Chika Moore. (2024, January), "Multiple Split Equality Problem and Convergence Result", Earthline Journal of Mathematical Sciences, Vol. 14, (Issue 1), pp 161-173 |
| 3 | Agatha Chizoba Nnubia, Chika Moore. (2023, September), "Picard-like Iteration Process for Finite Family of Contractions", Asian Journal of Pure and Applied M athematics, Vol. 5, (Issue 1), pp 383-385 |
| 4 | AGATHA CHIZOBA NNUBIA,, NKIRUKA MARIA-ASSUMPTA AKABUIKE, CHIKA MOORE. (2023, August), "Strong Convergence Theorem for Finite Family of Asymptotically Nonexpansive ln the Intermediate sense Nonself Maps.", European Journal of theoretical and Applied Science (EJTAS), Vol. 1, (Issue 4), pp 1-5 |
| 5 | AGATHA CHIZOBA NNUBIA, CHIKA MOORE. (2023, September), "Iteration Process for a Finite Family of Asymptotically k-Pseudocontractive Maps", EJTAS, Vol. 1, (Issue 6), pp 160 -165 |
| 6 | Chika Moore, Agatha Chizoba Nnubia, Austin Nduaguibe, Ugochukwu Offordile,. (2022, November), "Multiple Split Equilibrium Fixed Point Problem Involving Finite Families of η−demimetric and Quasi-nonexpansive Mappings.", International Journal of Innovative Sciences and Research Technology (IJISRT), Vol. 7, (Issue 11), pp 14 |
| 7 | SA Bishop, AC Nnubia. (2021, November), "Stability of Nonlocal Stochastic Vpilerra", International Journal of Mathematical Sciences and Optimization Theory and Application |
| 8 | Agatha Chizoba Nnubia, Sheila Bishop. (2020, September), "Strong Convergence Theorem for Finite Family of Generalised Asymptotically Nonexpansive Maps", International Journal of Analysis and Applications, Vol. 18, (Issue 1), pp 71 - 84 |
| 9 | Chika Moore, Nkiruka Marian Asumpta Akabuike, Agatha Chizoba Nnubia. (2020, December), "An Analytical Model for Prevention of Mother to Child Transmission of HIV through Breastfeeding.", IOSR- Journal of Mathematics, Vol. 16, (Issue 6), pp 14 - 19 |
| 10 | Nnubia Agatha Chizoba, Akabuike Nkiruka. (2019, February), "Strong Convergence Theorem of a Viscosity Process for Finite Family of Total Asymptotically Nonexpansive Maps", JP Journal of Fixed Point theory and Application, Vol. 14, (Issue 2), pp 51 - 75 |
| 11 | A.C. Nnubia, Chika Moore,. (2018, January), "strong convergence theorem of an m-step Halpern-type iteration process for finite families of total asymptotically non expensive maps", Journal of the Nigerian Mathematical Society, Vol. 37, (Issue 3), pp 155-174 |
| 12 | Chika Moore, A.C. Nnubia, Nfor Mary Bruno. (2017, May), "The M-step iterative procedure for finite family of uniformly continuous asymptotically non expansive in the intermediate sense mps", IOSR Journal of Mathematics, Vol. 13, pp 58-66, Doi; 10.97090/5728-1305035866 |
| 13 | Aloysius U.Umeodinka, Nnubia Chizoba Agatha.. (2016, August), ";THE MATHEMATICS LANGUAGE SYMBIOSIS:THE LEARNERS BENEFITS", Mgbakoiba,journal of African studies, Vol. 6, pp 264-292 |
| 14 | E.U. Ofoedu, Agatha.C Nnubia. (2015, September), "Approximation of Minimum-norm Fixed Point of Total asymptotically Non expansive Mapping", Springer Verlag Journal-Afrika Matematika, Vol. 26, (Issue 5), pp 699-715, Doi; 1007/s13370-014-0240-4 |
| 15 | E.U. Ofoedu, Agatha.C Nnubia. (2015, November), "Convergence Theorem for Finite Family of Total Asymptotically Non Expansive Mapping", International Journal of Analysis and Applications, Vol. 9, pp 96-113 |
| 16 | Chika Moore, A.C. Nnubia, Akabuike N.K. (2015, December), "STRONG CONVERGENCE OF AN M-STEP PICARD-LIKE PROCESS TO A COMMON FIXED POINT OF A FINITE FAMILY OF LIPSCHITZIAN HEMICONTRACTIVE MAPS", JP, Journal of Fixed Point of a Finite Point Theory and Applications, Vol. 10, pp 117 |
| 17 | Chika Moore, Nnubia Agatha Chizoba, Akabuike Nkiruka. (2015, March), "Strong Convergence of M-step Picard-like Process To A Common Fixed Point Of A Finite Family of Lipschitzian Hemicontractive Maps", JP Journal of Fixed Point theory and Application, Vol. 10, (Issue 3), pp 117- 128 |
| 18 | Chika Moore, A.C. Nnubia,Mogbademu Adesanmi. (2013, March), "Iterative procedure for uniformly continuous mappings", Mathematical theory and Modelling, Vol. 8, (Issue 3), pp 53-59 |
| 19 | Chika Moore, A.C. Nnubia.. (2012, March), "Strong Convergence of modified Picard process to a common fixed point of a finite family of Lipschizian hemicontractive maps", J.Nigerian Math.Soc, Vol. 31, pp 177-183 |
| 20 | Chika Moore, Nnubia Agatha Chizoba. (2011, June), "Strong Convergence of A Picard Process To A Common Fixed Point Of A Finite Family of L-lipschitzian Asymptotically-pseudocontractive Maps", JP Journal of Fixed Point theory and Application, Vol. 6, (Issue 1), pp 25 = 34 |
| 21 | Chika Moore, Nnubia Agatha Chizoba, Nfor MaryBruno. (2010, February), "Strong Convergence of A Modified Picard Process To A Common Fixed Point Of A Finite Family of $k$-pseudocontractive Maps", Global Journal Math. Statistics, Vol. 2, (Issue 2), pp 171-174 |
| 22 | Chika Moore, A.C. Nnubia, C.P. Nnanwa. (2010, February), "Explicit Iteration Process for a Finite Family of Non expansive Maps", Global Journal of Mathematics and Statistics, Vol. 1, pp 35 - 40 |
| Thesis | |
| 1 | A.C NNUBIA. (2004, September), "DOUBLE SEQUENCE ITERATION FOR SOLUTION OF VARIATIONAL INEQUALITIES (M.Sc)". |
| Dissertations | |
| 1 | A.C NNUBIA. (2018, September), "M-STEP ITERATIVE APPROXIMATION OF COMMON FIXED POINTS OF FINITE FAMILIES OF NON-LINEAR OPERATORS IN BANACH SPACES (Ph.D)". |
| Projects | |
| 1 | A.C NNUBIA. (1997, September), "STUDENTS ASSESSMENT OF MATHEMATICS TEACHERS PERFORMNCE (B.Sc Edu)". |
| Conference Papers | |
| 1 | AGATHA CHIZOBA NNUBIA, NDUAGUIBE AUSTIN CHUKWUEMEKA, CHIKA MOORE. (2024, May), "A New Procedure for Approximation of Solution of a Multiple Split Equality Common Fixed Point Problems.", |
| 2 | NDUAGUIBE AUSTIN CHUKWUEMEKA, AGATHA CHIZOBA NNUBIA, CHIKA MOORE. (2024, May), "Iterative Procedure for Common Fixed Point of Split Equality Mixed Problems (SEMEP).", |
| 3 | Agatha Chizoba Nnubia, Austin Nduaguibe, Chika Moore. (2023, June), "A New Split Equality Problem and Approximation of Fixed Point", |
| 4 | Agatha Chizoba Nnubia, Austin Nduaguibe, Chika Moore. (2023, June), "A New Split Equality Problem and Approximation of Fixed Point", |
| 5 | Chika Moore , Agatha Chizoba Nnubia. (2019, June), "Explicit Iterative Procedure for Finite Family of Contractive-like Operators in a Convex Metric Spaces", |
| 6 | Chika Moore , Agatha Chizoba Nnubia. (2016, June), "Iterative Procedure for Finite Family of Total Asymptotically Non expansive Maps.", |
| 7 | Chika Moore , Agatha Chizoba Nnubia. (2013, June), "Iterative Procedure for Uniformly Continuous Mapping", |
| 8 | Chika Moore , Agatha Chizoba Nnubia. (2009, June), "A modified Picard Scheme for a Finite Family of Lipchitzian Strongly Hemicontractive Maps", |
| 9 | Chika Moore , Agatha Chizoba Nnubia. (2009, June), "Strong Convergence of a Picard-like Process to Fixed Point of Lipschitzian Hemicontractive Map", |
| 10 | Chika Moore , Agatha Chizoba Nnubia. (2009, June), "Picard- Like Process for Finite Family of Contractions", |
| 11 | Chika Moore , Agatha Chizoba Nnubia. (2006, June), "Picard-like Process for Finite Family of Contractions", |
Academic Leadership Qualities
| Supervisions | |
|---|---|
| 1 | "An Iterative Algorithm for Approximation of Solution of Nonlinear Split Equality Mixed Problems" (2024). Completed Masters project by Austin Chukwuemeka Nduaguibe (2019526005FA) |
| 2 | "Attractive Point of Nonlinear Maps" (2021). Ongoing Masters project by Offodile, Ugochukwu A. (2019526002PA) |
| Grants | |
| 1 | Collaborator: "Foundation refresher course on mathematical analysis" (May, 2009 to June, 2009). Completed sponsored grant by NATIONAL UNIVERSITY COMMISSION/ ICTP |
| Editorships | |
| 1 | Editor, "JOURNAL OF BASIC PHYSICAL RESEARCH" (July, 2021) |
| Reviewerships | |
| 1 | Reviewer, "A novel fixed point iteration process applied in solving delay differential equations: A novel fixed point iteration process applied in solving delay differential equations" (March, 2024) |
| 2 | Reviewer, "A novel fixed point iteration process applied in solving delay differential equations: A novel fixed point iteration process applied in solving delay differential equations" (May, 2024) |
| 3 | Reviewer, "A novel fixed point iteration process applied in solving delay differential equations: A novel fixed point iteration process applied in solving delay differential equations" (May, 2024) |
| 4 | Reviewer, "Mann-Type Iteration Process For Common Fixed Point of a countable Family of Relatively Nonexpansive Mappings" (March, 2024) |
| Examinerships | |
| 1 | Chief Examiner, "University of Nigeria Nsukka Undergraduate Examination( External Examiner)" (October, 2023 to November, 2023). Completed External Exam |
| 2 | Chief Examiner, "University of Nigeria Nsukka, Faculty of Physical Sciences, Department of Mathematics Undergraduate Programmes for the 2021/2022 Academic Session" (October, 2021 to October, 2022). Completed External Exam |
| 3 | Examiner, "Masters Examination( Some Methods of Handling Muilticolinear and Assessing Influential Observation" (September, 2018 to September, 2019). Completed Internal-External Exam |
| 4 | Examiner, "Masters Examination( A two -Parametric Rama Distribution and it's Application" (September, 2017 to May, 2021). Completed Internal-External Exam |
| 5 | Examiner, "Masters examination" (May, 2016 to July, 2019). Completed Internal-External Exam |
| 6 | Examiner, "Masters examination" (January, 2015 to June, 2019). Completed Internal-External Exam |
| 7 | Examiner, "Masters Examination(Fixed point theory of generalized monotonic asymptotic point wise Lipschitzian mapping in hyperbolic spaces)" (August, 2014 to July, 2021). Completed Internal-External Exam |
| 8 | Examiner, "Asseement of Binary Logistic , Negative Binomial and Modifird Poisioj Regression Models" (September, 2012 to November, 2019). Completed Internal-External Exam |
| 9 | Examiner, "Masters :Numerical solution of coupled systems of initial value differential problems using linear multi step methods)" (June, 2008 to July, 2019). Completed Internal-Internal Exam |
| Contributions to the University/Society | |
| 1 | HEAD OF DEPARTMENT, "Department of Mathematics Nnamdi Azikiwe University" (December, 2023) |
| 2 | Post Graduate Coordinator, "Department of Mathematics Nnamdi Azikiwe University" (August, 2022) |
| 3 | MEMBER, "Faculty of Physical Sciences Senate Representative" (March, 2022) |
| 4 | HEAD OF DEPARTMENT, "Department of Mathematics Nnamdi Azikiwe University" (October, 2020 to January, 2022) |
| 5 | HEAD OF DEPARTMENT, "Department of Mathematics Nnamdi Azikiwe University" (March, 2019 to February, 2022) |
| 6 | HEAD OF DEPARTMENT, "Department of Mathematics Nnamdi Azikiwe University" (October, 2019 to October, 2020) |
| 7 | Staff Adviser 100level, "Nnamdi Azikiwe University" (October, 2018 to October, 2018) |
| 8 | Departmental welfare secretary, "Nnamdi Azikiwe University" (October, 2018 to October, 2018) |
| 9 | Sponsor- Award- Highest Math Scorer, "Nnamdi Azikiwe University Awka Pre- Science Programme" (February, 2018 to November, 2009) |
| 10 | Women Leader, "Ajalli Catholic Community Women Forum Oko- Ekwulobia" (August, 2018 to November, 2021) |
| 11 | Annual lecture committee member, "Nnamdi Azikiwe University" (August, 2017 to August, 2018) |
| 12 | Coordinator departmental sandwich programme, "Nnamdi Azikiwe University" (January, 2017 to January, 2018) |
| 13 | MEMBER, "Secretary, Faculty of Physical Sciences Post graduate Defense Secetariat Committee" (September, 2017 to May, 2020) |
| 14 | MEMBER, "Department of Mathematics Nnamdi Azikiwe University (Examination Officer)" (October, 2017 to April, 2009) |
| 15 | MEMBER, "Faculty of Physical Sciences Inaugural Lecture Committee" (February, 2016 to March, 2020) |
| 16 | Women Leader, "Catholic Charismatic Renewal of Nigeria St Thomas Aquinas Parish" (September, 2012 to August, 2015) |
Membership of Professional/Relevant Bodies
| 1 | Full Member, "Nigerian Mathematical Society" (member since 2006), http:nms |
| 2 | Full Member, "Mathematical Association of Nigeria" (member since 2000), http:man |
Relevant Events Attended
| Conferences | |
|---|---|
| 1 | "41st Annual Conference of Nigerian Mathematical Society", (Nigerian Mathematical Society), 6th May, 2024 to 10th May, 2024; University of Ibadan Nigeria |
| 2 | "1st International(Hybrid) Conference & Exhibition", (Faculty of Physical Science Nnamdi Azikiwe University Awka), 30th November, 2023 to 2nd December, 2023; Nnamdi Azikiwe University Awka |
| 3 | "1st International (Hybrid) Conference & Exhibition", (Faculty of Physical Science Nnamdi Azikiwe University Awka), 30th November, 2023 to 2nd December, 2023; Nnamdi Azikiwe University Awka |
| 4 | "40th Annual Conference of Nigerian Mathematical Society", (Nigerian Mathematical Society), 21st June, 2023 to 24th June, 2023; Usuman Dan Fodio Sokoto |
| 5 | "38TH ANNUAL CONFERENCE OF NIGERIAN MATHEMATICAL SOCIETY : ITERATION PROCEDURE FOR A FAMILY OF CONTRACTIVE-LIKE OPERATORS IN CONVEX METRIC SPACES", (NIGERIAN MATHEMATICAL SOCIETY), 18th June, 2019 to 21st June, 2019; UNIVERSITY OF NIGERIA NSUKKA |
| 6 | "35th Annual Conference of Nigerian Mathematical Society", (Nigerian Mathematical Society (NMS)), 3rd June, 2016 to 6th June, 2016; Federal University if Technology Minna |
| 7 | "32nd Annual Conference of the Nigerian Mathematical Society", (Nigerian Mathematical Society (NMS)), 25th June, 2013 to 28th June, 2013; Obafemi Aeolowo University(OAU), Ile - ife |
| 8 | "28th Annual Conference of the Nigerian Mathematical Society", (Nigerian Mathematical Society (NMS)), 25th June, 2009 to 27th June, 2009; University of Ilorin Kwara State |
| 9 | "Foundation Refresher Course on Mathematical Analysis", (National University Commission/ICTP), 25th May, 2009 to 14th June, 2009; African University of Science and Technology, Abuja |
| 10 | "26TH ANNUAL CONFERENCE OF THE NIGERIAN MATHEMATICAL SOCIETY::EXPLICIT ITERATION PROCESS FOR FINITE FAMILY OF NON EXPANSIVE MAPS", (NIGERIAN MATHEMATICAL SOCIETY), 15th May, 2009 to 19th May, 2009; UNIVERSITY OF AKURE |
| 11 | "40th Nigerian Mathematical Society Annual Conference", (Nigerian Mathematical Society), Usuman Dan Fodio Sokoto |
| Workshops | |
| 1 | "NUC/ICTP THREE WEEK COURSE ON MATHEMATICAL ANALYSIS", (NUC/ICTP), 24th May, 2009 to 14th June, 2009; African University of Science and Technology Abuja |
| 2 | "PRACTICALIZING MATHEMATICS IN OUR CLASSROOM", (MATHEMATICAL ASSOCIATION OF NIGERIA), 20th November, 2003 to 21st November, 2003; CANA HOUSE AWKA |
| Seminars | |
| 1 | "The Academic", (Mathematics Department UNIZIK), 9th September, 2021 to 9th September, 2021; Mathematics Lab |
| 2 | "FORTH NIGHT DEPARTMENTAL SEMINAR; PAPER TITLE: UNIFORM BOUNDEDNESS PRINCIPLE", (DEPARTMENT OF MATHEMATICS, NNAMDI AZIKIWE UNIVERSITY), 1st December, 2011 to 1st December, 2011; NNAMDI AZIKIWE UNIVERSITY |
| 3 | "NON LINEAR EQUATIONS GOVERNED BY ACCRETIVE OPERATORS", (ICTP TRIESTE ITALY), 1st January, 2011 to 1st January, 2011; NNAMDI AZIKIWE UNIVERSITY |
| 4 | "THE BASIC INGREDIENTS OF MATHEMATICAL ANALYSIS", (DEPARTMENT OF MATHEMATICS, NNAMDI AZIKIWE UNIVERSITY), 8th December, 2010 to 8th December, 2010; NNAMDI AZIKIWE UNIVERSITY |