Turkish Journal of Mathematics
The Turkish Journal of Mathematics is an international, bi-monthly, peer-reviewed, diamond open-access journal published by the Scientific and Technological Research Council of Türkiye (TÜBİTAK). Turk J Math is devoted to all fields of mathematics. The journal is published in January, March, May, July, September, and November. The journal has been indexed in Scopus since 2006 and included in SCI-E since 2009.
ISSN: 1300-0098
EISSN: 1303-6149
Journal Metrics
Impact Factor (2024) 0.9
5-Year Impact Factor 0.9
Category Quartile Q2
Current Issue: Volume 50, Number 3 (2026)
Cover and Contents
Research Articles
Adaptive two-derivative Runge–Kutta–Nyström method with trigonometric fitting approach
NUR NABILA HUDA, KHAI CHIEN LEE, and NURUL HUDA ABDUL AZIZ
Pages 351-375
On sequences arising from the action of modular group
TUNCAY KÖROĞLU and BAHADIR ÖZGÜR GÜLER
Pages 376-389
A module theoretic approach to (b,c)-invertibility
TUĞBA PAKEL, BURCU ÜNGÖR, HANDAN KÖSE, SAİT HALICIOĞLU, and ABDULLAH HARMANCI
Pages 390-406
Existence results and uniqueness for some Caputo-Hadamard fractional differential equations via the measures of noncompactness
MANOCHEHR KAZEMI, MOHAMMAD ESMAEL SAMEI, HAMID REZA SAHEBI, and OSMAN TUNÇ
Pages 407-422
Proportion of nilpotent subgroups in finite groups and their properties
João Victor MONTEIROS de ANDRADE and LEONARDO SANTOS da CRUZ
Pages 423-438
Optimal control of an inverse two-point boundary value problem for a pseudoparabolic equation with Samarskii–Ionkin-type boundary conditions
HANLAR REŞİDOĞLU (KHANLAR R. MAMEDOV), TURSUN K. YULDASHEV, and ZHOLDOSHBEK ZH. SHERMAMATOV
Pages 439-457
Oscillation properties of first-order difference equations with nonmonotone delays: new insights and criteria
EMAD ATTIA and GEORGE CHATZARAKIS
Pages 458-474
Close-to-convexity properties of inverse hypergeometric functions
IJLAL HUSSAIN, WASIM UL HAQ, and JANUSZ SOKOL
Pages 475-487
Ricci solitons on manifolds with Norden golden structure
BANG-YEN CHEN, FOUED ALOUI, MOHAMMED NISAR, and MAJID ALI CHOUDHARY
Pages 488-504
Improved oscillation criteria for a class of neutral differential equations in the canonical case
ABDULAZIZ KHALID ALSHARIDI and ALI MUHIB
Pages 505-516
On the number of exact factorization of finite groups
JESUS ALONSO OCHOA ARANGO and MARIA ANGELICA UMBARILA MARTIN
Pages 517-538
Comparisons of some weighted mixed biased estimators for the linear regression model
DÜNYA KARAPINAR, MURAT POLAT, NİMET ÖZBAY, and SELAHATTİN KAÇIRANLAR
Pages 539-554
Editors
- Editor-in-Chief
- Prof. Dr. Adnan TERCAN Hacettepe University, Türkiye
- Associate Editor-in-Chief
- Prof. Dr. Aydın GEZER Atatürk University, Türkiye
