WSEAS Transactions on Mathematics
Print ISSN: 1109-2769
E-ISSN: 2224-2880
Volume 20, 2021
Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.
Volume 20, 2021
We are pleased to announce our website relocation to www.wseas.com/journals/mathematics
Our new website will be effective from July 1st, 2021 and every new paper will be published only in www.wseas.com/journals/mathematics
All indexing services will harvest our contents from www.wseas.com/journals/mathematics
A Novel Spatiotemporal Method for Predicting Covid-19 Cases
Junzhe Cai, Peter Z. Revesz
DOI: 10.37394/23206.2021.20.31
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #31, pp. 300-311
Estimation of Multicomponent Reliability based on Progressively Type II Censored Data from Unit Weibull Distribution
Refah Mohammed Alotaibi, Yogesh Mani Tripathi, Sanku Dey, Hoda Ragab Rezk
DOI: 10.37394/23206.2021.20.30
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #30, pp. 288-299
On the Diophantine equation 3x+py=z2 where p ≡ 2 (mod 3)
Wipawee Tangjai, Chusak Chubthaisong
DOI: 10.37394/23206.2021.20.29
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #29, pp. 283-287
Closed Form Solutions of Lyapunov Equations using the Vech and Veck Operators
Nicholas Assimakis, Maria Adam
DOI: 10.37394/23206.2021.20.28
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #28, pp. 276-282
The Shock Reaction in a Simple Close Economy
Adirek Vajrapatkul
DOI: 10.37394/23206.2021.20.27
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #27, pp. 264-275
Toeplitz Like Operators on 2-nuclear Tensor Product of Hardy Spaces
Amani Shatarah
DOI: 10.37394/23206.2021.20.26
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #26, pp. 255-263
Two Probabilistic Models for Quick Dissimilarity Detection of Big Binary Data
Adnan A. Mustafa
DOI: 10.37394/23206.2021.20.25
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #25, pp. 244-254
Sweeping Surface of Center Curve on Surface in Euclidean 3-space E³
Rashad A. Abdel-Baky, Fatemah Mofarreh
DOI: 10.37394/23206.2021.20.24
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #24, pp. 235-243
Global and Sensitivity Analyses of Unconcerned COVID-19 Cases in Nigeria: A Mathematical Modeling Approach
Faniran T. S., Bakare E. A., Potucek R., Ayoola E. O.
DOI: 10.37394/23206.2021.20.23
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #23, pp. 218-234
Spacelike Surfaces with a Common Line of Curvature in Lorentz-Minkowski 3-Space
M. Khalifa Saad, Abu Zaid Ansari, M. Akram, F. Alharbi
DOI: 10.37394/23206.2021.20.22
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #22, pp. 207-217
Conditionally Specified Bivariate Kummer-Gamma Distribution
Daya K. Nagar, Edwin Zarrazola, Alejandro Roldán-Correa
DOI: 10.37394/23206.2021.20.21
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #21, pp. 196-206
Transcritical Bifurcations and Algebraic Aspects of Quadratic Multiparametric Families
Jorge Rodríguez Contreras, Alberto Reyes Linero, Bladimir Blanco Montes, Primitivo B. Acosta Humánez
DOI: 10.37394/23206.2021.20.20
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #20, pp. 186-195
Generating Fuzzy Sets and Fuzzy Relations based on Information
Radwan Abu-Gdairi, Ibrahim Noaman
DOI: 10.37394/23206.2021.20.19
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #19, pp. 178-185
On Factorization of Functional Operators with Reflection on the Real Axis
Oleksandr Karelin, Anna Tarasenko
DOI: 10.37394/23206.2021.20.18
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #18, pp. 171-177
A Hybrid Shapeless Radial Basis Function Applied with the Dual Reciprocity Boundary Element Method
Krittidej Chanthawara, Sayan Kaennakham
DOI: 10.37394/23206.2021.20.17
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #17, pp. 159-170
Pairwise Strongly Lindelöf, Pairwise Nearly, almost and Weakly Lindelöf Bitopological Spaces
Eman Almuhur, Manal Al-Labadi
DOI: 10.37394/23206.2021.20.16
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #16, pp. 152-158
Successions of J-bessel in Spaces with Indefinite Metric
Osmin Ferrer, Luis Lazaro, Jorge Rodriguez
DOI: 10.37394/23206.2021.20.15
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #15, pp. 144-151
Mixture of Lindley and Inverse Weibull Distributions: Properties and Estimation
A. S. Al-Moisheer, A. F. Daghestani, K. S. Sultan
DOI: 10.37394/23206.2021.20.14
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #14, pp. 134-143
A Study of Life Internal Rate of Return
Sorrawee Roenganan, Masnita Misran, Nattakorn Phewchean
DOI: 10.37394/23206.2021.20.13
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #13, pp. 122-133
Option Pricing under GARCH Models Applied to the SET50 Index of Thailand
Somphorn Arunsingkarat, Renato Costa, Masnita Misran, Nattakorn Phewchean
DOI: 10.37394/23206.2021.20.12
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #12, pp. 112-121
The Performance of Estimators for Generalization of Crack Distribution
Supitcha Mamuangbon, Kamon Budsaba, Andrei Volodin
DOI: 10.37394/23206.2021.20.11
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #11, pp. 106-111
Classification of Evolutoids and Pedaloids in Minkowski Space-time Plane
A. A. Abdel-Salam, M. Khalifa Saad
DOI: 10.37394/23206.2021.20.10
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #10, pp. 97-105
Singularly Perturbed Integro-Differential Equations with Rapidly Oscillating Coefficients and with Rapidly Changing Kernel in the Case of a Multiple Spectrum
Burkhan Kalimbetov, Valery Safonov
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #9, pp. 84-96
Minimality of SRPT Networks with Resource Sharing
Robert Gieroba, Łukasz Kruk
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #8, pp. 74-83
Approximation on Manifold
Yu. K. Dem’yanovich
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #7, pp. 62-73
Comparison of Accuracy Properties for Confidence Intervals of the Cross-Product Ratio of Binomial Proportions under Direct-Direct Sampling Scheme
Chanakan Sungboonchoo, Wararit Panichkitkosolkul, Andrei Volodin
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #6, pp. 53-61
Confidence Intervals for the Ratio of Means of Two Independent Log-Normal Distributions
Lapasrada Singhasomboon, Wararit Panichkitkosolkul, Andrei Volodin
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #5, pp. 45-52
Doubly Non-Central Generalized Beta Distributions
Daya K. Nagar, Edwin Zarrazola, Yohana Tabares-Herrera
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #4, pp. 37-44
An Efficient Information Hiding Mechanism based on Confusion Component over Local Ring and Moore-Penrose Pseudo Inverse
Nabilah Abughazalah, Majid Khan
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #3, pp. 24-36
Application Local Polynomial and Non-polynomial Splines of the Third Order of Approximation for the Construction of the Numerical Solution of the Volterra Integral Equation of the Second Kind
I. G. Burova
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #2, pp. 9-23
Soft Topological Spaces Induced via Soft Relations
Saeid Jafari, Abd El Fattah El-Atik, Raja M. Latif, M. K. El-Bably
WSEAS Transactions on Mathematics, ISSN / E-ISSN: 1109-2769 / 2224-2880, Volume 20, 2021, Art. #1, pp. 1-8
We are pleased to announce our website relocation to www.wseas.com/journals/mathematics
Our new website will be effective from July 1st, 2021 and every new paper will be published only in www.wseas.com/journals/mathematics
All indexing services will harvest our contents from www.wseas.com/journals/mathematics
