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Department of Mathematics

Naresuan University

Asst. Prof. Dr. Ekkachai Laysirikul

ekkachail@nu.ac.th

No.						Verified
1	Maximal and Minimal Congruences on the Semigroup 𝑇𝐸 (𝑋) Kitsanachai Sripon and Ekkachai Laysirikul and Ronnason ChinramScience & Technology Asia, 32-38, 2024	2024	0	N/A	N/A
2	Regularity and abundance on semigroups of transformations preserving an equivalence relation on an invariant set Kitsanachai Sripon and Ekkachai Laysirikul and Yanisa ChaiyaAIMS Mathematics 8 (8), 18223-18233, 2023	2023	0	Q1	Q2
3	Left (right) regular elements of some transformation semigroups Kitsanachai Sripon and Ekkachai Laysirikul and Worachead SommaneeMathematics 11 (10), 2230, 2023	2023	2	Q1	Q1
4	Enumeration of Numerical Semigroups {0}∪[a, b]∪[c,∞) with Same Embedding Dimension Chaiwat Namnak and Chonlada Phanmun and Ekkachai LaysirikulSCIENCE AND TECHNOLOGY NAKHON SAWAN RAJABHAT UNIVERSITY JOURNAL 15 (22), 123-130, 2023	2023	0	N/A	N/A
5	A Note on Regularity of Certain Semigroups of Transformations Preserving a Reflexive and Transitive Relation Kitsanachai Sripon and Ekkachai Laysirikul and Yanisa ChaiyaScience & Technology Asia, 37-43, 2023	2023	0	N/A	N/A
6	The Formula of the Frobenius Number for a Numerical Semigroup with Embedding Dimension Three respect to a Partial Order Relation Pitiwat Lueangwitchajaroen and Ekkachai LaysirikulAsian Health, Science and Technology Reports 31 (2), 33-41, 2023	2023	0	N/A	N/A
7	Isomorphism Theorem for Cayley Graphs of Semigroup of Integer Modulo Prime Power Relative to an Invertible Element Ekkachai LaysirikulAsian Health, Science and Technology Reports 27 (3), 95-100, 2019	2019	0	N/A	N/A
8	On R-left cancellative semigroups Chaiwat Namnak and Ekkachai Laysirikul and Piyaporn TantongSongklanakarin Journal of Science & Technology 40 (1), 2018	2018	0	Q3	N/A
9	Left regular and right regular elements of the semigroups of transformations restricted by an equivalence Ekkachai Laysirikul and Nares Sawatraksa and Chaiwat NamnakNaresuan University Journal: Science and Technology (NUJST) 26 (4), 89-93, 2018	2018	3	N/A	N/A
10	A unifying approach to the Margolis–Meakin and Birget–Rhodes group expansion Bernd Billhardt and Yanisa Chaiya and Ekkachai Laysirikul and Nuttawoot Nupo and Jintana SanwongSemigroup Forum 96 (3), 565-580, 2018	2018	4	Q3	Q2

Showing 1 - 10 of 23 entries