Designation: | Lecturer II |

Email: | lekkyonix4ree@yahoo.com |

Phone: | |

Gender: | Male |

Place and Date of Birth:........................Zaria, 24 November 1974

Nationality:......................................................Nigerian

State of Origin/ LGA:...............................Kogi/Ijumu

Present Home Address:........................No 1 Dunamis Church Avenue, North Bank Makurdi

Postal Address:...........................................Department of Mathematics/Statistics/Computer Science, University of Agriculture, Makurdi

Phone/Email................................................07053283453/lekkyonix4ree @ yahoo.com

Marital Status:..............................................Married

Number and Ages of Children:......Three(3)/ 9,7 and 5

Correspondence Address:................Department of Mathematics/Statistics/Computer Science, University of Agriculture, Makurdi.

E-mail:...............................................................lekkyonix4ree @ yahoo.com

Phone No........................................................07053283453

Personal File Number:..........................2592

Date of First Appointment:...............May 22, 2012

Rank of First Appointment:...............Assistant Lecturer

Date of Assumption of Duty in UAM: 15 June 2012

Date of Confirmation of Appointment: 15 June, 2014

Date of Last Promotion:..............................15 October, 2015

Present Rank/Scale:.....................................Lecturer II (CONUASS 03/05)

2. EDUCATIONAL INSTITUTIONS ATTENDED WITH DATES

i. Ahmadu Bello University Staff School Zaria..............................................1988

ii. Baptist High School Ekinrin-Adde, Kogi-State ..............................1993

iii. Ahmadu Bello University, Zaria..................................................................2002

iv. Ahmadu Bello University, Zaria..................................................................2009

v. Ahmadu Bello University, Zaria .................................................................2016

3. ACADEMICQUALIFICATIONS OBTAINED WITH DATES

i. First School leaving Certificate 1988

ii. Secondary School Certificate Examination 1993

iii. B.Sc. Mathematics 2003

iv. M.Sc. Mathematics 2010

v. Ph.D. Mathematics 2016

4. WORK EXPERIENCE

i. Part Time Lecturer, Institute of Education, Ahmadu Bello University, Zaria 2008-2012

ii. Assistant Lecturer, Department of Mathematics, Statistics and Computer Science, University

of Agriculture, Makurdi Benue-State 2012-2015

iii. Lecturer II, Department of Mathematics, Statistics and Computer Science, University

of Agriculture, Makurdi Benue-State 2015- till date

HONOURS, AWARDS AND DISTINCTIONS

Most stressed free undergraduate A.B.U Mathematics student 2000, 2001

8. EXTRACURRICULAR ACTIVITIES

Footballing, Volleyballing, Table Tennis, Football Analyst

i. Singh, J. and Leke, O.(Presenter): Equilibrium Points in the Restricted Three-Body

Problem with Oblateness, Perturbations, Radiation pressure and Variable Masses. 31st

Annual Conference of the Nigerian Mathematical Society, ABU Zaria, October, 2012

ii. Singh, J. and Leke, O. (Presenter): Existence of Equilibrium Points in the Robe’s Restricted

Three-Body Problem with Variable Masses31st Annual Conference of the Nigerian

Mathematical Society, ABU Zaria, October, 2012

i.Oscillation Theory of second-order Differential Equations, B.Sc. Project, Ahmadu Bello University, Zaria, July 2002.

ii.Stability Of Equilibrium Points In the Photogravitational Restricted Three-Body Problem with Variable Masses, M.Sc. Dissertation, Ahmadu Bello University, Zaria, December 2009.

iii.Investigation of Motion in the Circular Restricted Problems of Three-Bodies Under Perturbing Forces with Variable and Constant Masses, Ph.D. Thesis Ahmadu Bello University, Zaria 2016

(b) Books

Oni, L.S. (2014): Solutions and Applications of Ordinary Differential Equations.

Godson Press, High-level Makurdi. ISBN: 978-978-944-710-7

(c) Journals/Refereed Proceedings/Citations

Journal Publications

i.Singh, J. and Leke, O.: (2010) “Stability of the photogravitational restricted three-body problem with variable masses,” Astrophysics and Space Science, Vol. 326: 305- 314. Springer

ii.Singh, J., Leke, O. and Aishetu, U.: (2010) “Analysis of the stability of Triangular points in the perturbed photogravitational restricted three-body problem with variable masses,” Astrophysics and Space Science, Vol. 327: 299- 308. Springer

iii.Leke, O., Aishetu, U. and Singh, J.: “On the stability of equilibrium points in the perturbed restricted three- body problem with variable masses” Journal of the Nigerian Association of Mathematical Physics Vol.16: 413-426

iv.Leke, O and Bakut, S.:(2010) “Effects of perturbation on the stability of the autonomized triangular points in the restricted three- body problem with variable masses under a luminous primary” Journal of the Nigerian Association of Mathematical Physics, Vol.16: 427-434

v.Singh, J. and Leke, O.: (2012) “Equilibrium points and stability in the restricted three-body problem with oblateness and variable masses” Astrophysics and Space Science, Vol. 340: 27-41. Springer

vi.Singh, J. and Leke, O.: (2013) “Effects of oblateness, perturbations, radiation and varying masses on the stability of equilibrium points in the restricted three-body problem”. Astrophysics and Space Science Vol. 344: 51-61. Springer

vii.Singh, J., and Leke, O.: (2013) “Existence and stability of equilibrium points in the Robe’s restricted three-body problem with variable masses,” International Journal of Astronomy and Astrophysics, Vol. 3: 113–122, Scientific Research USA

viii. Singh, J. and Leke, O.: (2013) “Robe’s restricted three-body problem with variable

masses and perturbing forces” ISRN Astronomy and Astrophysics, Volume 2013,

Article ID 910354 Hindawi

ix. Singh, J. and Leke, O.: (2013) “On Robe’s Circular Restricted Problem of Three Variable Mass Bodies” Journal of Astrophysics Volume 2013, Article ID 898794, Hindawi

x.Singh, J., Leke, O.:(2014) “Periodic orbits in the Chermnykh-like restricted problem of oblate bodies with radiation” Astrophysics and Space Science, 350:109–117. Springer

xi. Singh, J. and Leke, O.:(2014) “Motion in a modified Chermnykh’s restricted three-body problem with oblateness”. Astrophysics and Space Science 350:143–154. Springer

xii. Singh, J., Leke, O.: (2014) “Analytic and numerical treatment of motion of dust grain particle around triangular equilibrium points with post-AGB binary star and disc” Advances in Space Research 54, 1659–1677. Elsevier

xiii.Singh, J., Leke, O.:(2014) “Effects of mass variation of main bodies on Orbits around

triangular libration points in the restricted three-body problem” Journal of Applied

Physical Science International Vol. 1 10-23. International Knowledge Press UK

d. Citations

202 Citations from different Published Scholarly Journal Articles (Researchgate)

i Out-of-plane equilibrium points of extra-solar planets in the central binaries PSR B1620-26

and Kepler-16 with cluster of material points and variable mass (Submitted)

ii. A generalized study of the restricted problem of three bodies having circular cluster of

materials with variable mass problems

(a)Teaching/Supervision of Projects

i.Teaching of Diploma, IJMB, Undergraduate and Postgraduate courses in Mathematics and Statistics

ii. Supervision of over 70 undergraduate and 3 PGD projects in Mathematics.

iii. Ongoing supervision of 6 MSc. students in Mathematics

b. Courses Taught

IJMB Courses

O ’level Basic Mathematics

Diploma Courses

i.Algebra

ii.Trigonometry

iii.Differential and Integral Calculus

iv.Mathematical Methods

v.Linear Algebra

vi.Introduction to Statistics

Undergraduate Courses

i.Real Analysis

ii.Mathematical Methods

iii.Ordinary Differential Equations

iv.Partial Differential Equations

v.Metric Spaces

vi.Differential and Integral Calculus

vii.Trigonometry

viii.Dynamics of Rigid Body

ix.Functional Analysis

x.Complex Analysis

Postgraduate Courses

i. Ordinary Differential Equations (PGD)

c. Administrative Experience

i. Departmental Board Secretary, Department of Mathematics, Statistics and Computer

Science, University of Agriculture, Makurdi 2013-2015.

ii. Students Registration Officer 2012 till date

iii. Member Postgraduate Committee January 2016

iv. Postgraduate Course Work Seminar Coordinator 2016 till date

d. Contribution To The Field And Service To University/Nation

i.Astrophysics and Space Science (APSS) Reviewer

ii.British Journal of Mathematics and Computer Science (BJMCS) Reviewer

iii.Journal Of Differential Equations and Dynamical Systems (DED) Reviewer

iv.International Journal of Astronomy and Astrophysics (IJAA) Reviewer

v.Journal of Advanced Physical Science International (JAPSI) Reviewer

vi.Asian Journal of Mathematics and Computer Research (AJOMCOR) Reviewer

vii.Journal of Advances in Mathematics and Computer Science (JAMSC) Reviewer

viii.Participation in the Times Higher Education World and Local University Ranking

ix.Member of the Local Organizing Committee for 36th NMS Makurdi 2017

e. Supervision

1. Undergraduate Supervision

Supervision of over 60 undergraduate projects in Mathematics

2). Postgraduate Supervision

PGD Mathematics Supervision (Completed)

i. Segun, V. Bello: Semi-analytic Study of Periodic Motion around Triangular Points with Radiation

Force (2014).

ii. Tamber, D. Doshima 14/7775/PGD: Second Order Linear Ordinary Differential Equations and

Solutions of Initial Value Problems (2015).

3) M.Sc. Supervision (Ongoing)

M.Sc. students assigned: i. Grace A. Hembafan 16/10061/MSc/UAM

ii. Donald Simon 16/10046/MSc/UAM

iii. Abur Gabriel 16/10060/MSc/UAM

iv. Mmaju C. Nzube 16/10199/MSc/UAM