Turkish Journal of Mathematics
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
