Publications

Publication year: 2020

Applied Calculas  I,

On Star-critical Ramsey numbers for Stars versus Stripes

Publications in Journals and Conference Proceedings
Chula J. Jayawardene, W. Chandanie W. Navaratna
- in progress
Publication year: 2020

On Star critical Ramsey numbers related to Stars versus K_{1,m} +e for small m

Publications in Journals and Conference Proceedings
J.N. Senadheera, K. A. S. Namal Fernando, Chula J. Jayawardene, W. Chandanie W. Navaratna - in progress
Proceeding of the Open University Research Sessions (OURS 2019)
Publication year: 2019

Tripartite and quadpartite size Ramsey numbers for all pairs of connected graphs on 4 vertices

Book Chapters
CJ Jayawardene, ISBN 10-1522593802; Advanced Applications of Graph Theory in Modern Society; Book-chapter; 16 pages
Publication year: 2019

Star-critical Ramsey numbers for cycles versus K4

Publications in Journals and Conference Proceedings
CJ Jayawardene, D Narváez, S Radziszowski, Discussiones Mathematicae Graph Theory, 1-10, http://dx.doi.org/10.7151
Publication year: 2019

A Note on Star critical Ramsey (Cn,K6) numbers for large n

Publications in Journals and Conference Proceedings
CJ Jayawardene, WCW Navaratna, Annals of Pure and Applied Mathematics, 20 (1)
Publication year: 2019

On Star-critical Ramsey numbers related to large cycles versus complete graphs

Publications in Journals and Conference Proceedings
CJ Jayawardene and W. C. W. Navaratna
arXvi preprint; arXiv:1903.10891v1
Publication year: 2019

On Star-critical (K1,n,K1,m+e) Ramsey numbers

Publications in Journals and Conference Proceedings
WCW Navaratna, CJ Jayawardene, JN Senadheera, KASN Fernando, arXiv preprint:1905.11380
Publication year: 2019

On Ramsey (C_n,K_6) critical graphs n for large n

Publications in Journals and Conference Proceedings
Chula J. Jayawardene, W. Chandanie W. Navaratna, J.N. Senadheera, arXiv preprint arXiv:1902.02646v2
Publication year: 2019

Diagonal Ramsey numbers in multipartite graphs related to stars

Publications in Journals and Conference Proceedings
CJ Jayawardene, arXiv preprint arXiv:1901.01436
Publication year: 2019

A Ramsey problem related to Butterfly graph vs. proper connected subgraphs of K4

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, arXiv preprint: arXiv 1901.01658
Publication year: 2019

Size multipartite Ramsey numbers for small paths verses K2,n

Publications in Journals and Conference Proceedings
CJ Jayawardene, Annals of Pure and Applied Mathematics, 19 (1), 7-17
Publication year: 2019

On the Harary's problem for K2,k

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, B Bollobas, arXiv preprint arXvi:1901.01552
Publication year: 2019

A Practical Application of the Generalized Cutting Stock Algorithm

Papers published with UOC students
W.D.D.Madhavee, N.Saldin, U.C.Vaidyarathna and CJ.Jayawardene*
Progress in Nonlinear Dynamics and Chaos Vol. 6, No. 1, 2018, 39-47
Publication year: 2018

Introduction to Graph Algorithms and Ramsey Theory

Books
CJ Jayawardene, ISBN:978-955-31-1154-8, Textbook-Sarasavi; 156-pages
Publication year: 2018

Graph Theory

Books
CJ Jayawardene, ISBN 978-955-31-1155-5; Textbook-Sarasavi; 137-pages
Publication year: 2018

Discrete Mathematics

Books
CJ Jayawardene, ISBN:978-955-573-864-4; Textbook-Sarasavi; 138-pages
Publication year: 2018

Star-critical Ramsey numbers for cycles versus the complete graph on 5 vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, Progress in Nonlinear Dynamics and Chaos, 6 (2), 115-126
Publication year: 2018

A size multipartite Ramsey problem involving the claw graph

Publications in Journals and Conference Proceedings
CJ Jayawardene, Annals of Pure and Applied Mathematics, 17 (2), 241-248
Publication year: 2018

On a Ramsey problem involving the 3-pan graph

Publications in Journals and Conference Proceedings
CJ Jayawardene, Annals of Pure and Applied Mathematics 16 (2), 437-441
Publication year: 2018

Size multipartite Ramsey numbers for K4 -e verses all graphs up to 4 vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, Annals of Pure and Applied Mathematics, 13 (1), 9-26
Publication year: 2017

On path convex Ramsey numbers

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, H Harborth, Journal of Graph Theory, 86 (3), 286-294
Publication year: 2017

The size, multipartite Ramsey numbers for C3 versus all graphs up to 4 vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, Journal of the National Science Foundation of Sri Lanka, 45 (1), 67-72
Publication year: 2017

On a Ramsey problem involving quadrilaterals

Publications in Journals and Conference Proceedings
CJ Jayawardene, TU Hewage, Annals of Pure and Applied Mathematics, 13 (2), 297-304
Publication year: 2017

A strict upper bound for size multipartite Ramsey numbers of paths versus stars

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, Indonesian Journal of Combinatorics, 1 (2), 55-63
Publication year: 2017

mj(P4,G) for all graphs on 4 vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, TU Hewage, BL Samarasekara, MJL Mendis, L Edusuriya, Annals of Pure and Applied Mathematics, 14 (1), 153-160
Publication year: 2017

Size multipartite Ramsey numbers for small paths versus books

Publications in Journals and Conference Proceedings
CJ Jayawardene, J Ratnayake, Indonesian Journal of Combinatorics, 1 (1), 31-40
Publication year: 2016

Size multipartite Ramsey numbers for stripes versus small cycles

Publications in Journals and Conference Proceedings
CJ Jayawardene, ET Baskoro, L Samarasekara, S Sy, Electronic Journal of Graph Theory and Applications 4 (2), 157-170
Publication year: 2016

Size multipartite Ramsey numbers for small paths versus stripes

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, Annals of Pure and Applied Mathematics, 12 (2), 211-220
Publication year: 2016

Size multipartite Ramsey numbers for stripes versus stripes

Publications in Journals and Conference Proceedings
CJ Jayawardene, BL Samarasekara, Ars Combinatorica, 129, 357-366
Publication year: 2016

Size multipartite Ramsey numbers for stripes versus other graphs

Publications in Journals and Conference Proceedings
CJ Jayawardene and BL Samarasekara, Bandung(Indonesia) Workshop on Combinatorics and Optimization
Publication year: 2015

On size multipartite Ramsey numbers for stars versus cycles

Publications in Journals and Conference Proceedings
A Lusiani, S Sy, ET Baskoro, CJ Jayawardene, Procedia Computer Science, 74, 27-31
Publication year: 2015

How to find an optimal distribution schedule for a clothing manufacturing company in Sri Lanka

Publications in Journals and Conference Proceedings
CJ Jayawardene, International forum for Mathematical Modelling 2014, University of Colombo
Publication year: 2014

Coordinate Geometry

Books
CJ Jayawardene, ISBN 978-955-573-865-1; Sarasavi Book; 2nd edition; 305 pages
Publication year: 2013

Trigonometry and Complex Numbers

Books
CJ Jayawardene, ISBN 978-955-573-862-0; Sarasavi Book; 2nd edition; 365 pages
Publication year: 2013

Algebra I

Books
CJ Jayawardene, ISBN 978-955-573-868-8; Sarasavi Book; 2nd edition; 193 pages
Publication year: 2013

Calculus

Books
CJ Jayawardene, ISBN 978-955-573-863-7; Sarasavi-Book, 385 pages
Publication year: 2012

Ordinary Level Mathematics, Grade 10, Book 1,

Books
CJ Jayawardene, ISBN 978-955-671-458-6; Sarasavi Book; 275 pages
Publication year: 2012

Ordinary Level Mathematics, Grade 10, Book 2

Books
CJ Jayawardene, ISBN 978-955-671-459-3; Sarasavi Book; 2nd edition; 195 pages
Publication year: 2012

Ordinary Level Mathematics, Grade 11, Book 1

Books
CJ Jayawardene, ISBN 978-955-671-456-2; Sarasavi Book; 2nd edition; 299 pages
Publication year: 2012

Ordinary Level Mathematics, Grade 11, Book 2

Books
CJ Jayawardene, ISBN 978-955-671-457-9; Sarasavi Book; 2nd edition; 311 pages
Publication year: 2012

Algebra II

Books
CJ Jayawardene, ISBN 978-955-573-864-4; Sarasavi-Book, 324 pages
Publication year: 2009

Combinatorics

Books
CJ Jayawardene, Editor: Prof. S Somadasa; ISBN 978-955-23-1115-4; Open University press; 180 pages
Publication year: 2009

Ramsey r(C5,G) numbers for all graphs of order six

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, Ars Combinatoria, 57, 163-174
Publication year: 2000

On a conjecture involving cycle-complete graph Ramsey numbers

Publications in Journals and Conference Proceedings
B Bollobás, CJ Jayawardene, J Yang, YR Huang, CC Rousseau, ZK Min
On a conjecture involving cycle-complete graph Ramsey numbers, Australasian Journal of Combinatorics, Vol 22, 63-72. This joint paper was published while the Dr. CJ Jayawardene was pursuing post-doctoral studies under Prof. Bela Bollobas.
Publication year: 2000

.

The Ramsey numbers for a quadrilateral vs. all graphs on six vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, Journal of Combinatorial Mathematics and Combinatorial Computing, 35, 71-88
Publication year: 2000

The Ramsey number for a cycle of length five vs. a complete graph of order six

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, Journal of Graph Theory, 35 (2), 99-108
Publication year: 2000

Ramsey Numbers Related to Small Cycles

Thesis
CJ Jayawardene, PHD Thesis, University of Memphis
Publication year: 1999

The Ramsey numbers r(C4,K6) and r(C4,K7)

Thesis
CJ Jayawardene, MSC Thesis, University of Memphis
Publication year: 1999

Presentation at the 30th South Eastern International Conference on Combinatorics,

Publications in Journals and Conference Proceedings
Graph Theory and Computing. Florida, U.S.A. March 8-12, 1999.
Publication year: 1999

Ramsey numbers (C6,G) for all graphs of order less than six

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, Congressus Numerantium 1999, 147-160
Publication year: 1999

Presentation at the 29th South Eastern International Conference on Combinatorics,

Publications in Journals and Conference Proceedings
Graph Theory and Computing. Florida, U.S.A. March 9-13, 1998.
Publication year: 1998

The Ramsey numbers r(C4,G) and r(C5,G) for all graphs of order six

Publications in Journals and Conference Proceedings
CJ Jayawardene, Special sessions of the 931st American Mathematical Society
Publication year: 1998

An upper bound for the Ramsey number of a quadrilateral versus a complete graph on seven vertices

Publications in Journals and Conference Proceedings
CJ Jayawardene, CC Rousseau, Congressus Numerantium, 1998, 175-188
Publication year: 1998

Presentation at the 28th South Eastern International Conference on Combinatorics,

Publications in Journals and Conference Proceedings
CC Rousseau, CJ Jayawardene, Graph Theory and Computing, Florida, U.S.A. March 3-7, 1997.
Publication year: 1997

The Ramsey number for a quadrilateral vs. a complete graph on six vertices

Publications in Journals and Conference Proceedings
CC Rousseau, CJ Jayawardene, Congressus Numerantium, 1997, 97-108
Publication year: 1997