Mrs. P.Y.A.G.S. Yapa

Senior Lecturer (G II)

Mathematics and Philosophy of Engineering
Faculty of Engineering Technology

Central Campus, 3rd floor, Science and Technology building, Room No : W5

Office: +94112881441, Ext: 441


Ms. P.Y.A.G.S.Yapa registered for her MPhil Degree at the University of Sri Jayewardenepura on 01.04.2009, under the supervision of Prof. D.A. Tantrigoda and Prof. A.P.K. De Zoysa. For the M.Phil Degree she worked in the area of mathematical modeling. She was completed the Mphil degree in 2013 Aug 29th. She was succefully completed the Mphil research of Interpretation of Potential Filed Data Using Backus-Gilbert Inversion Technique.

In 2004, she was graduated from the University of Moratuwa with a Second Upper Class Honours Degree in B.Sc. Engineering in the field of Earth Resources Engineering. Currently she is serving in the Department of Mathematics and Philosophy of Engineering of the Open University of Sri Lanka in the capacity of Senior Lecturer.

Area of Specialization:

Linear Algebra, Mathematical Modelling

Research Intrests:

Linear Algebra


Department of Mathematics and Philosophy of Engineering, Faculty of Engineering Technology

Course Coordination:
    • MPZ4230 – Engineering Mathematics II
    • MPZ5140/5160 – Discrete Mathematics II

MPZ5230 – Engineering Mathematics III


Journal article

PYAGS Yapa , DA Tantrigoda and CPS Pathirana, 2016, ‘Illustrating the possibility of modeling the gravity anomalies in terms of bodies having density vary with depth’, Journal of Engineering and Technology (JET), The Open University of Sri Lanka.


Conference Papers

PYAGS Yapa and  DA Tantrigoda, 2015, ‘Modeling of vertical density distribution in a normal geological fault by the Backus and Gilbert method’, Sri Lanka Association for the Advancement of Science (SLAAS) Proceedings of the 71st  Annual Sessions.


PYAGS Yapa and DA Tantrigoda, 2016, ‘Modeling of gravity anomalies over a sedimentary basin having a horizontal igneous layer intruded into it’, Sri Lanka Association for the Advancement of Science (SLAAS) Proceedings of the 72nd Annual Sessions. – accepted

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