Published papers

CJM vol. 42 (2026), no. 4

(Published on 5 July 2025)

CJM vol. 42 (2026), no. 3

(Published on 9 May 2026)

Finite-Time H∞ Control for Conformable Fractional-Order Nonlinear Systems with Time Delays, pp. 483-500
NGUYEN THI HUE, MAI VIET THUAN, NGUYEN HUU SAU, AND NGUYEN THI THANH HUYEN

Comparison theorems for higher-order differential equations with delay argument, pp. 501-508
B. BACULIKOVA, J. DZURINA

Subgradient-extragradient algorithms with double inertial terms for solving image restoration problems, pp. 509-539
DUANGKAMON KITKUAN, ANANTACHAI PADCHAROEN, TANAKIT THIANWAN

Duality of Natural and Euclidean Gradients on the Multinomial Statistical Manifold, pp. 541-554
IOANA RADULESCU (LAZARESCU)

A Study of a Plate Equation with Nonlocal Weak Damping and Logarithmic Sources: Existence and Decay, pp. 555-571
MOHAMMAD M. AL-GHARABLI, ADEL M. AL-MAHDI, AND SALIM A. MESSAOUDI

Inertial Krasnoselskii-Mann algorithm for approximating fixed points of enriched nonexpansive mappings, pp. 573-594
M. S. SARKINBAI, S. SALISU, AND M. S. MINJIBIR

Graphic-like contractions, pp. 595-611
MARIJA CVETKOVIC

Rickart matrices over commutative rings, pp. 613-623
GRIGORE CALUGAREANU AND TSIU-KWEN LEE

A branch-and-price based heuristic for the Vertex Separator Problem, pp. 625-634
EMANUEL FLORENTIN OLARIU, CRISTIAN FRASINARU, AND SERGIU AMIHAESEI

Existence, uniqueness, and stability of solutions to a nonlinear Ψ-Hilfer fractional differential equation with anti-periodic conditions, pp. 635-648
PIYACHAT BORISUT AND SUPAK PHIANGSUNGNOEN

Numerical solutions for a supercritical fKdV equation under gravity-capillarity, pp. 649-660
NADJIBA FOUKROUN, SAMIRA BEYOUD, AND RACHIDA AIT-YAHIA DJOUADI

Double Inertial Shrinking Projection Algorithm for Fixed Point Problems with Deep Learning Integration for Lumbar Spinal Stenosis Detection, pp. 661-678
PAPINWICH PAIMSANG, WONGTHAWAT LIAWRUNGRUEANG, JAKKAPHONG INPAN, PHISIT KATONGTUNG, KANOKWATT SHIANGJEN, JEN-CHIH YAO, PRASIT CHOLAMJIAK, SUTHEP SUANTAI, AND WATCHARAPORN CHOLAMJIAK

A homotopy type approach for maps with an admissible inclusion property, pp. 679-688
DONAL O’REGAN

Study of the Partial Exact Controllability of Fractional Control Systems in the Sense of the Deformable Derivative, pp. 689-703
BOULKHAIRY SY AND CHEIKH SECK

Parametric linear systems in extremal algebras, pp. 705-720
STEFAN BEREZNY, HELENA MYSKOVA, AND JAN PLAVKA

CJM vol. 42 (2026), no. 2

(Published on 14 February 2026)

Special issue including selected papers presented at ACFPTO-2025 [The 12th Asian Conference on Fixed Point Theory and Optimization 2025, Duangtawan Hotel Chiang Mai, January 15-18, 2025]

 

Amenable gyrogroups and their fixed-point property∗, pp. 191-197
TEERAPONG SUKSUMRAN AND JATURON WATTANAPAN

A Double Inertial Fixed Point Algorithm with Linesearch and Its Application to Machine Learning for Data Classification, pp. 199-216
PUNTITA SAE-JIA, SUTHEP SUANTAI

Solving Certain Classes of Variational Inclusion Problems Using Linearized Splitting Algorithms with Applications, pp. 217-239
SOLOMON GEBREGIORGIS, POOM KUMAM, AND THIDAPORN SEANGWATTANA

Weak and strong convergence of multi-inertial forward-backward-forward methods for solving monotone inclusions, pp. 241-265
PAPATSARA INKRONG, PRASIT CHOLAMJIAK, AND JEN-CHIH YAO

Classifying compressive strength of clay bricks using an inertial projected forward-backward algorithm, 267-286
WATCHARAPORN CHOLAMJIAK, SIWAT LAWANWADEEKUL, KUNRADA KANKAM, PRASIT CHOLAMJIAK, AND NIPA JUN-ON

Efficient Large-Scale Classification with Linex Least Square Twin Bounded Support Vector Machine, pp. 287-317
RATTANAPORN WANGKEEREE, DAWRAWEE MAKMUANG, AND RABIAN WANGKEEREE

A Dual-Projective Double Inertial Forward-Backward Splitting Algorithm for Variational Inclusion Problems with Applications to External Validation in Breast Cancer Diagnosis, pp. 319-338
PAPINWICH PAIMSANG, WATCHARAPORN YAJAI, PENNIPAT NABHEERONG, WATCHARAPORN CHOLAMJIAK, AND JEN-CHIH YAO

Accelerated forward-backward algorithm based on inertial and correction terms with linesearch for solving convex minimization problem and its application, pp. 339-353
SUPARAT KESORNPROM, PRASIT CHOLAMJIAK, AND SUTHEP SUANTAI

Double-step inertial algorithms for equilibrium and fixed point problems in Hilbert spaces, pp. 355-367
SUPALIN TIAMMEE AND JUKRAPONG TIAMMEE

A Novel Fixed-Point Based Two-Step Inertial Algorithm for Convex Bilevel Optimization in Deep Learning Data Classification, pp. 369-392
SUTHEP SUANTAI AND KOBKOON JANNGAM

Holderian Stability for Parametric Optimization Models and Applications, pp. 393-409
LAM QUOC ANH, PHAM THANH DUOC, THANATPORN GRACE, AND NARIN PETROT

Inertial viscosity fixed point algorithms for monotone inclusion, convex minimization, and image restoration problems, pp. 411-438
TANAKIT THIANWAN, ANANTACHAI PADCHAROEN, OVIDIU BAGDASAR, AND CHONJAROEN CHAIRATSIRIPONG

A product of strongly quasi-nonexpansive mappings in Hadamard spaces, pp. 439-455
WIPARAT WORAPITPONG, PARIN CHAIPUNYA, POOM KUMAM, AND SAKAN TERMKAEW

Approximate Solutions for Multi-Objective Optimization Problems via Scalarizing and Nonscalarizing Methods, pp. 457-482
TA QUANG SON, HUA KHAC BAO, AND NARIN PETROT

[Last paper (s) published on 14 February 2026]

CJM vol. 42 (2026), no. 1

(Published on 17 October 2025)

Numerical Approximation for an Axisymmetric Brinkman Exterior Problem, pp. 1-11
KHALED M’HAMED-MESSAOUD, RABAH HACENE BELLOUT, AND TOUFIK LAADJ

Enhancing the applicability of a family of fifth-order iterative methods, pp. 13-38
AJIL KUNNARATH, SANTHOSH GEORGE, JIDESH P., AND IOANNIS K. ARGYROS

Distinguishing Number of Inverse Graphs of Finite Groups: Labeling the Symmetry, pp. 39-46
MONTHER R. ALFURAIDAN AND MAKKIAH S. MAKKI

On estimates of the best M–term approximations of functions of the class  in the Lorentz space, pp. 47-63
A.KH. MYRZAGALIYEVA AND G. AKISHEV

Iterative criteria for oscillation of third-order linear delay dynamic equations, pp. 65-79
G. N. CHHATRIA, S. R. GRACE, AND I. JADLOVSKA

The Solodov–Svaiter type proximal point algorithm on a complete geodesic space, pp. 81-94
SHUTA SUDO

On Stability of Two New Generalized Set-Valued Functional Equations, pp. 95-114
WUTTICHAI SURIYACHAROEN AND WUTIPHOL SINTUNAVARAT

The Stinespring-Wittstock theory for variable exponential completely bounded maps, pp. 115-122
MYKOLA IVANOVICH YAREMENKO

Two geometric constants of normed spaces related to new characterizations of inner product spaces, pp. 123-135
A. AMINI-HARANDI AND S. KHOSRAVANI

Gallai’s property for Archimedean tiling graphs on the torus, pp. 137-152
ZHIKUI CHANG, LIPING YUAN, AND TUDOR ZAMFIRESCU

Finite-Time H∞ Control for Conformable Fractional-Order Nonlinear Systems with Time Delays, pp. 153-170
NGUYEN THI HUE, MAI VIET THUAN, NGUYEN HUU SAU, AND NGUYEN THI THANH HUYEN

Operational almost periodic alpha unpredictability, pp. 171-189
MARAT AKHMET AND AKYLBEK ZHAMANSHIN

[Last paper (s) published on 17 October 2025]

CJM vol. 41 (2025), no. 4

(Published on 5 July 2025)

  • Unit neighborhoods of zero in topological ordered rings, 951-957
    FRANCISCO JAVIER GARCIA-PACHECO

CJM vol. 41 (2025), no. 3

(Published on 12 April 2025)

Contents of issue 3/2025

CJM vol. 41 (2025), no. 2

(Published on 9 December 2024)


A two-step inertial algorithm for solving equilibrium problems on Hadamard manifolds
, pp. 253-272
H. A. ABASS, A. ADAMU AND M. APHANE

Existence and uniqueness of solution of a tripled system of fractional Langevin differential equations with cyclic boundary conditions, pp. 273-298
HAMID BAGHANI, JEHAD ALZABUT, JUAN J. NIETO, ABDELKRIM SALIM

Stability of generalized P-harmonic maps, pp. 299-311
AHMED MOHAMMED CHERIF

Stability of oscillatory solutions of impulsive differential equations with piecewise alternately advanced and retarded argument of generalized type, pp. 313-328
KUO-SHOU CHIU

Stability and bifurcations in an epidemic model with nonlinear transmission and removal rates, pp. 329-349
RALUCA EFREM, MIHAELA STERPU, AND DANA CONSTANTINESCU

A Voronovskaya type theorem associated to geometric series of Bernstein-Durrmeyer operators, 351-360
STEFAN-LUCIAN GAROIU

Geometry of C32 cyclic polyyne and some of its clusters, pp. 361-391
LORENTZ JANTSCHI AND LAVINIA-LORENA PRUTEANU

On statistical convergence of topological Henstock-Kurzweil integral, pp. 393-408
HEMANTA KALITA, SUMIT SOM, AND BIPAN HAZARIKA

Existence and uniqueness of solution for a class of superlinear Kirchhoff-type equations on the real half-line, pp. 409-423
ISHAK KETTAF AND SOFIANE KHOUTIR

From Modular Spaces to Boundary Value Problems: A Survey of Recent Advances, pp. 425-440
M. A. KHAMSI, P. KUMAM, AND O. MENDEZ

Positive solutions for multipoint boundary value problem of fractional differential equation with parameter, pp. 441-453
ZHI LIU AND WEIBING WANG

Cut-through connections of graphs, pp. 455-464
DANIELA MATISOVA AND JURAJ VALISKA

A set packing model for the Partition Coloring Problem, pp. 465-477
EMANUEL FLORENTIN OLARIU AND CRISTIAN FRASINARU

Unified Convergence Analysis of Certain At Least Fifth Order Methods, pp. 479-502
RAMYA SADANANDA, MANJUSREE GOPAL, SANTHOSH GEORGE, AND IOANNIS K. ARGYROS

On simple normal structure and best proximity points in reflexive Banach space, pp. 503-515
BELKASSEM SEDDOUG, KARIM CHAIRA AND JANUSZ MATKOWSKI

Global-fixed-point property of gyrogroup actions, pp. 517-523
TEERAPONG SUKSUMRAN

Two generalized cyclic projection algorithms for solving a class of the split feasibility problem in real Hilbert spaces, pp. 525-541
PHAN THI VAN HUYEN, NGUYEN SONG HA, AND TRUONG MINH TUYEN

Properties of isocompact spaces in topological groups, pp. 543-554
ZHONGLI WANG AND WEN CHEAN TEH

Asymptotic modeling of non-linear viscopiezoelectric Kelvin-Voigt type plates via Trotter theory, 555-567
THIBAUT WELLER, CHRISTIAN LICHT, SOMSAK ORANKITJAROEN, YOTSAWAT TERAPABKAJORNDED

An inertial method for solving the split equality fixed point problem with multiple output sets, pp. 569-595
HABTU ZEGEYE, YIRGA ABEBE BELAY, AND HAGOS HAILU GIDEY

Contents of issue 2/2025

CJM vol. 41 (2025), no. 1

(Published on 4 October 2024)


Gradient Projection Method for Quasiconvex Equilibrium Problems…………………………………………………………… pp. 1-12
QAMRUL HASAN ANSARI, MUZAFFAR SARKAR RAJU AND FEEROZ BABU

Algorithmic and Analytical Approach for a System of Generalized Multi-valued Resolvent Equations-Part I: Basic Theory…pp. 13-30
JAVAD BALOOEE AND SULIMAN AL-HOMIDAN

Approximation by polynomials with constant coefficients and the Thresholding Greedy Algorithm…………………..pp. 31-44
MIGUEL BERASATEGUI, PABLO M. BERNA, AND DAVID GONZALEZ

Conjectures about wheels without one edge…………………………………………………………………………pp. 45-55
STEFAN BEREZNY AND MICHAL STAS

Third-Order Neutral Difference Equations: Improved Oscillation Criteria via Linearization Method………………….pp. 57-67
G.E. CHATZARAKIS, R. DEEPALAKSHMI, S. SARAVANAN, AND E. THANDAPANI

Stability of oscillatory solutions of impulsive differential equations with general piecewise constant arguments of mixed type…pp. 69-87
KUO-SHOU CHIU

A quaternionic product of simple ratios……………………………………………………………………………pp. 89-93
MIRCEA CRASMAREANU and LAURIAN-IOAN PISCORAN

On the existence and uniqueness of fixed points in Banach spaces using the Krasnoselskij iterative method…pp. 95-106
M.A. HERNANDEZ-VERON, AND N. ROMERO

Consequences of the product rule in Stieltjes differentiability…………………………………………………………………..pp. 107-135
F. JAVIER FERNANDEZ, IGNACIO MARQUEZ ALBES, AND F. ADRIAN F. TOJO

Constructing DNA Codes using Double Cyclic Codes of Odd and Even Lengths over F2 + uF2…………………..pp. 137-156
ARUNOTHAI KANLAYA AND CHAKKRID KLIN-EAM

New class of n-order fractional differential equations and solvability in the double sequence space m2(∆uv, φ, p)…pp. 157-169
HOJJATOLLAH AMIRI KAYVANLOO, ELVINA HERAWATI, AND MOHAMMAD MURSALEEN

Hybrid CG-Like Algorithm for Nonlinear Equations and Image Restoration………………………………………………pp. 171-191
KANIKAR MUANGCHOO AND SUPAK PHIANGSUNGNOEN

On the error estimates for the sequence of successive approximations for cyclic φ–contractions in metric spaces…pp. 193–204
AKRAM SAFARI-HAFSHEJANI

Two new extragradient methods for solving the pseudomonotone equilibrium problem in Hilbert spaces……….pp. 205-222
NOPPARAT WAIROJJANA, NATTAWUT PHOLASA, NUTTAPOL PAKKARANANG, AND BANCHA
PANYANAK

Characterizations of amenable gyrogroups related to Tarski’s Theorem……………………………………………………pp. 223-235
JATURON WATTANAPAN AND TEERAPONG SUKSUMRAN

Stability of new functional equations and partial multipliers in Banach ∗-algebras………………………………………pp. 237-251
CHENGBO ZHAI AND JIN KANG

Contents of issue 1/2025

CJM vol. 41 (2024), no. 3

Includes selected papers presented at ICFPTA2023 (marked by *)

(Published on 17 April 2024)

Contents of issue 3/2024

CJM vol. 40 (2024), no. 2

(Published on 28 March 2024)

Contents of issue no. 2/2024

CJM vol. 40 (2024), no. 1

(Published on 7 November 2023)

Contents of issue 1/2024

CJM vol. 39 (2023), no. 3

(Published on 11 July 2023)

Contents of issue 3/2023

CJM vol. 39 (2023), no. 2

(Published on 21 December 2022)

Contents of issue 2/2023

CJM vol. 39 (2023), no. 1

Special issue In memoriam Prof. Charles E. Chidume (1947-2021)

(Published on 30 July 2022)

Relaxed modified Tseng algorithm for solving variational inclusion problems in real Banach spaces with applications, by A. Adamu, P. Kumam, D. Kitkuan and A. Padcharoen, pp. 1–26.

Modified inertial Mann’s algorithm and inertial hybrid algorithm for k-strict pseudo-contractive mappings, by Suparat Baiya, and Kasamsuk Ungchittrakool, pp. 27–43.

Solutions of Split Equality Hammerstein Type Equation Problems in Reflexive Real Banach Spaces, by Yirga Abebe Belay, Habtu Zegeye, and Oganeditse A. Boikanyo, pp. 45–72.

Approximating fixed points results for demicontractive mappings could be derived from their quasi-nonexpansive counterparts, by Vasile Berinde, pp. 73–84.

Fixed points and coupled fixed points in b-metric spaces via graphical contractions, by Monica-Felicia Bota, Liliana Guran, and Gabriela Petrusel, pp. 85–94.

Graphical Ekeland’s variational principle with a generalized w-distance and a new approach to quasi-equilibrium problems, by Parin Chaipunya, Nantaporn Chuensupantharat and Printaporn Sanguansuttigul, pp. 95–107.

Geometric inequalities in real Banach spaces with applications, by Charles Chidume, pp. 109–124.

A New Accelerated Viscosity Forward-backward Algorithm with a Linesearch for Some Convex Minimization Problems and its Applications to Data Classification, by Dawan Chumpungam, Panitarn Sarnmeta, and Suthep Suantai, pp. 125–138.

Alternated inertial simultaneous and semi-alternating projection algorithms for solving the split equality problem, by Qiao-Li Dong, Yu Peng, pp. 139–160.

Some applications of idempotent elements in MV algebras, by Cristina Flaut, pp. 161–174.

Joint approximation of analytic functions by shifts of the Riemann zeta-function twisted by the Gram function, by Maxim Korolev, and Antanas Laurincikas, pp. 175–187.

A parallel method for common variational inclusion and common fixed point problems with applications, by Thanasak Mouktonglang, Kanyuta Poochinapan, and Raweerote Suparatulatorn, pp. 189–200.

Inertial Iteration Scheme for Approximating Fixed Points of Lipschitz Pseudocontractive Maps in Arbitrary Real Banach Spaces, by P.U. Nwokoro, D. F. Agbebaku, E.E. Chima, A.C. Onah, O.U. Oguguo, and M.O. Osilike, pp. 201–212.

On normalized distance Laplacian eigenvalues of graphs and applications to graphs defined on groups and rings, by Bilal A. Rather, Hilal A. Ganie, and Mustapha Aouchiche, pp. 213–230.

Most continuous and increasing functions have two different fixed points, by Simeon Reich, and Alexander J. Zaslavski, pp. 231–236.

On Fixed Points of Enriched Contractions and Enriched Nonexpansive Mappings, by Sani Salisu, Poom Kumam, and Songpon Sriwongsa, pp. 237–254.

Diophantine triples with distinct binary recurrences, by Laszlo Szalay, and Florian Luca, pp. 255–264.

Unpredictable solutions of quasilinear differential equations with generalized piecewise constant arguments of mixed type, by Madina Tleubergenova, Duygu Arugaslan Cincin, Zakhira Nugayeva, and Marat Akhmet, pp. 265–280.

A hybrid scheme for fixed points of a countable family of generalized nonexpansive-type maps and finite families of variational inequality and equilibrium problems, with applications, by Markjoe O. Uba, Maria A. Onyido, Cyril I. Udeani, and Peter U. Nwokoro, pp. 281–292.

The affine Orlicz log-Minkowki inequality, by Chang-Jian Zhao, pp. 293–302.

A Hybrid Steepest-Descent Algorithm for Convex Minimization Over the Fixed Point Set of Multivalued Mappings, by Yasir Arfat, Poom Kumam, Muhammad Aqeel Ahmad Khan and Yeol Je Cho, pp. 303–314.

Stepsize Choice for Korpelevich’s and Popov’s Extragradient Algorithms for Convex-Concave Minimax Problems, by Jiaojiao Wang and Hong-Kun Xu, pp. 315–323.

A novel approach for solving simultaneously one-parameter nonexpansive semigroup, convex minimization and fixed point problems involving set-valued operators, by T.M.M. Sow, Aminata Diop Diene and N. Djitte, pp. 325–334.

An iterative method for variational inclusions and fixed points of total uniformly L-Lipschitzian mappings, by Qamrul Hasan Ansari, Javad Balooee and Suliman Al-Homidan, pp. 335–348.

Contents of issue 1/2023

CJM vol. 38 (2022), no. 3

Dedicated to Professor Emeritus Mihail Megan on the occasion of his 75th anniversary

(Published on 26 July 2022)

Invited Guest Editors: Adina Luminița SASU and Bogdan SASU

Contents of issue 3/2022

(Updated: 9 August 2022)

CJM vol. 38 (2022), no. 2

(Published on February 18, 2022)

Contents of issue 2/2022

CJM vol. 38 (2022), no. 1

Dedicated to the memory of Acad. Mitrofan M. Choban (1942-2021)

(Published on November 16, 2021)

Generalized Bernstein Kantorovich operators: Voronovskaya type results, convergence in variation, by ANA MARIA ACU, ALI ARAL and IOAN RASA, pp. 01–12.

Unpredictability in Markov chains, by MARAT AKHMET, 13–19.

Distance-transitive strongly regular graphs, by MONTHER RASHED ALFURAIDAN, pp. 21–34.

Maia type fixed point theorems for some classes of enriched contractive mappings in Banach spaces, by VASILE BERINDE, pp. 35–46.

Iterative numerical method for fractional order two-point boundary value problems, ALEXANDRU MIHAI BICA and ZOLTAN SATMARI, pp. 47–55.

On the properties of lexicographic tolerable robust solution sets for uncertain multi-objective optimization problems, PORNPIMON BORIWAN, DAISHI KUROIWA and NARIN PETROT, pp. 57-66.

On the structure of the Levinson center for monotone non-autonomous dynamical systems with a first integral, by DAVID CHEBAN, pp. 67–94.

Well-posedness of a nonlinear second-order anisotropic reaction-diffusion problem with nonlinear and in homogeneous dynamic boundary conditions, by MITROFAN M. CHOBAN and COSTICA N. MOROSANU, pp. 95–116.

A two-level based genetic algorithm for solving the soft-clustered vehicle routing problem, by OVIDIU COSMA, PETRICA C. POP and CORINA POP SITAR, pp. 117–128.

Darboux integrability of a cubic differential system with two parallel invariant straight lines, DUMITRU COZMA, pp. 129–137.

Some fixed point theorems on equivalent metric spaces, by ANDREI HORVAT-MARC, MARIANA CUFOIAN and ADRIANA MITRE, pp. 139–148.

Distinct partitions and overpartitions, by MIRCEA MERCA, pp. 149–158.

Formal concept analysis model for static code analysis, SIMONA MOTOGNA, DIANA CRISTEA, DIANA SOTROPA and ARTHUR-JOZSEF MOLNAR, pp. 159–168.

Existence of common fixed points of non-linear semigroups of Enriched Kannan contractive mappings, by SAYANTAN PANJA, MANTU SAHA and RAVINDRA K. BISHT, pp. 169-178.

Convergence estimates for abstract second order differential equations with two small parameters and Lipschitzian nonlinearities, by ANDREI PERJAN and GALINA RUSU, pp. 179-200.

Two parameter singular perturbation problems for sine-Gordon type equations, ANDREI PERJAN and GALINA RUSU, pp. 201–215.

Center problem for cubic differential systems with the line at infinity of multiplicity four, ALEXANDRU SUBA, pp. 217–222.

Criteria of closedness of nilradicals in zero dimensional locally compact rings, by MIHAIL URSUL and JOHN LANTA, pp. 223–230.

Extension of Haar’s theorem, by JATURON WATTANAPAN, WATCHAREEPAN ATIPONRAT, SANTI TASENA and
TEERAPONG SUKSUMRAN, pp. 231–248.

Halpern subgradient extragradient algorithm for solving quasimonotone variational inequality problems, by PONGSAKORN YOTKAEW, HABIB UR REHMAN, BANCHA PANYANAK and NUTTAPOL PAKKARANANG, pp. 249–262.

Contents of issue 1/2022

(For older issues not yet posted here, please visit the old web site of Carpathian Journal of Mathematics)