TURKISH JOURNAL OF MATHEMATICS
Turk J Math
E-ISSN: 1303-6149
ISSN: 1300-0098

The following papers have been accepted for publication but have not yet undergone editing or formatting.

  1. A note on soft topological spaces - relations to ordinary topological structures
    JIRI KUPKA
    Available online: 28.10.2020
    PDF Last modified on 12.11.2020
    DOI: 10.3906/mat-1911-78 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  2. Order Compact and Unbounded Order Compact Operators
    NAZİFE ERKURŞUN ÖZCAN, NİYAZİ ANIL GEZER, ŞAZİYE ECE ÖZDEMİR, İREM MESUDE GEYİKÇİ
    Available online: 27.12.2020
    PDF Last modified on 11.01.2021
    DOI: 10.3906/mat-2004-68 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  3. Exact and Nonstandard Finite Difference Schemes for the Burgers Equation B(2,2)
    CANAN KÖROĞLU, AYHAN AYDIN
    Available online: 05.01.2021
    PDF Last modified on 13.12.2020
    DOI: 10.3906/mat-2009-51 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  4. Dynnikov coordinates on punctured torus
    ALEV MERAL
    Available online: 10.01.2021
    PDF Last modified on 16.10.2020
    DOI: 10.3906/mat-1912-22 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  5. Close-to-convexity of a class of harmonic mappings defined by a third-order differential inequality
    ELİF YAŞAR, SİBEL YALÇIN TOKGÖZ
    Available online: 10.01.2021
    PDF Last modified on 11.01.2021
    DOI: 10.3906/mat-2004-50 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  6. Portfolio optimization with two quasiconvex risk measures
    ÇAĞIN ARARAT
    Available online: 14.01.2021
    PDF Last modified on 02.01.2021
    DOI: 10.3906/mat-2012-45 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  7. Classification of genus-1 holomorphic Lefschetz pencils
    NORIYUKI HAMADA, KENTA HAYANO
    Available online: 16.01.2021
    PDF Last modified on 15.02.2021
    DOI: 10.3906/mat-2008-88 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  8. Gauss-Bonnet theorems and the Lorentzian Heisenberg group
    Tong Wu, SINING WEI, YONG WANG
    Available online: 17.01.2021
    PDF Last modified on 19.01.2021
    DOI: 10.3906/mat-2011-19 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  9. A new implicit-explicit local differential method for boundary value problems
    HÜSEYİN TUNÇ, MURAT SARI
    Available online: 29.01.2021
    PDF Last modified on 01.02.2021
    DOI: 10.3906/mat-2009-68 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  10. On a fifth-order non-selfadjoint boundary value problem
    EKİN UĞURLU, KENAN TAŞ
    Available online: 02.02.2021
    PDF Last modified on 02.02.2021
    DOI: 10.3906/mat-2005-43 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  11. On rings whose Jacobson radical coincides with upper nilradical
    GUANGLIN MA, YAO WANG, YANLI REN
    Available online: 02.02.2021
    PDF Last modified on 07.02.2021
    DOI: 10.3906/mat-2012-30 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  12. Estimations on some hybrid exponential sums related to Kloosterman sums
    YINGJIE CHENG, XIWANG CAO, LIQIN QIAN, JINLONG WAN
    Available online: 05.02.2021
    PDF Last modified on 08.02.2021
    DOI: 10.3906/mat-2010-89 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  13. On some generalizations of the Beta function in several variables
    MUSTAPHA RAISSOULI, SALMA EL-SOUBHY
    Available online: 08.02.2021
    PDF Last modified on 21.02.2021
    DOI: 10.3906/mat-2010-57 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  14. T_4, Urysohn's Lemma, and Tietze Extension Theorem for Constant Filter Convergence Spaces
    TESNİM MERYEM BARAN, AYHAN ERCİYES
    Available online: 08.02.2021
    PDF Last modified on 04.02.2021
    DOI: 10.3906/mat-2012-101 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  15. The Lebesgue constants on projective spaces
    ALEXANDER KUSHPEL
    Available online: 08.02.2021
    PDF Last modified on 10.02.2021
    DOI: 10.3906/mat-1910-111 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  16. Existence of nonnegative solutions for discrete Robin boundary value problems with sign-changing weight
    YAN ZHU
    Available online: 11.02.2021
    PDF Last modified on 08.02.2021
    DOI: 10.3906/mat-2012-34 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  17. On elements whose Moore-Penrose inverse is idempotent in a *-ring
    HAIYANG ZHU, JIANLONG CHEN, YUKUN ZHOU
    Available online: 11.02.2021
    PDF Last modified on 11.02.2021
    DOI: 10.3906/mat-2101-93 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  18. Completeness conditions of systems of Bessel functions in weighted $L^2$-spaces in terms of entire functions
    RUSLAN KHATS'
    Available online: 14.02.2021
    PDF Last modified on 07.02.2021
    DOI: 10.3906/mat-2101-76 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  19. Volume properties and some characterizations of ellipsoids in $E^{n+1}$
    DONG-SOO KIM, INCHEON KIM, YOUNG HO KIM
    Available online: 15.02.2021
    PDF Last modified on 25.02.2021
    DOI: 10.3906/mat-2009-36 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  20. On ordered $\Gamma$-hypersemigroups, minimal bi-ideals and minimal left ideals
    NIOVI KEHAYOPULU
    Available online: 15.02.2021
    PDF Last modified on 15.02.2021
    DOI: 10.3906/mat-2011-35 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  21. New oscillation criteria for differential equations with sublinear and superlinear neutral terms
    ALI MUHIB, ELMETWALLY M. ELABBASY, OSAMA MOAAZ
    Available online: 16.02.2021
    PDF Last modified on 17.02.2021
    DOI: 10.3906/mat-2012-11 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  22. Korovkin type approximation via triangular A-statistical convergence on an infinite interval
    SELİN ÇINAR, SEVDA YILDIZ, KAMİL DEMİRCİ
    Available online: 16.02.2021
    PDF Last modified on 17.02.2021
    DOI: 10.3906/mat-2012-57 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  23. Oscillation tests for nonlinear differential equations with nonmonotone delays
    NURTEN KILIÇ
    Available online: 16.02.2021
    PDF Last modified on 17.02.2021
    DOI: 10.3906/mat-2101-2 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  24. Some properties of second-order weak subdifferentials
    GONCA İNCEOĞLU
    Available online: 25.02.2021
    PDF Last modified on 25.01.2021
    DOI: 10.3906/mat-2010-22 (This number will become active after the manuscript has been selected for inclusion in an issue.)

  25. Almost quasi-clean rings
    TUFAN ÖZDİN
    Available online: 26.02.2021
    PDF Last modified on 13.02.2021
    DOI: 10.3906/mat-2012-77 (This number will become active after the manuscript has been selected for inclusion in an issue.)