Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics
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ISSN 1303-5991 | e-ISSN 2618-6470 | Period Biannually | Founded: 1948 | Publisher Ankara University | http://communications.science.ankara.edu.tr/index.php?series=A1



Communications Faculty of Sciences University of Ankara Series A1-Mathematics and Statistics is a single-blind peer reviewed fully open access journal which has been published since 1948 by Ankara University, accepts original research articles written in English in the fields of Mathematics and Statistics. Review articles written by eminent scientists can also be invited by the Editor.

Publisher:           Ankara University Faculty of Sciences
Owner:                Prof. Dr. Selim Osman SELAM, Dean of Faculty of Sciences, Ankara University 
Year Released:   1948
Period:                Twice a year
Language:           English
ISSN: 1303-5991    e-ISSN: 2618-6470
URL:                   http://communications.science.ankara.edu.tr/index.php?series=A1
DOI Prefix:         10.31801/cfsuasmas  (before 2018,  10.1501/ Commua1  )
E-Mail:                nozalp@science.ankara.edu.tr
Contact Address: Nuri ÖZALP, Communications Faculty of Sciences University of Ankara 06100 Besevler-ANKARA



Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics

ISSN 1303-5991 | e-ISSN 2618-6470 | Period Biannually | Founded: 1948 | Publisher Ankara University | http://communications.science.ankara.edu.tr/index.php?series=A1
Cover Image



Communications Faculty of Sciences University of Ankara Series A1-Mathematics and Statistics is a single-blind peer reviewed fully open access journal which has been published since 1948 by Ankara University, accepts original research articles written in English in the fields of Mathematics and Statistics. Review articles written by eminent scientists can also be invited by the Editor.

Publisher:           Ankara University Faculty of Sciences
Owner:                Prof. Dr. Selim Osman SELAM, Dean of Faculty of Sciences, Ankara University 
Year Released:   1948
Period:                Twice a year
Language:           English
ISSN: 1303-5991    e-ISSN: 2618-6470
URL:                   http://communications.science.ankara.edu.tr/index.php?series=A1
DOI Prefix:         10.31801/cfsuasmas  (before 2018,  10.1501/ Commua1  )
E-Mail:                nozalp@science.ankara.edu.tr
Contact Address: Nuri ÖZALP, Communications Faculty of Sciences University of Ankara 06100 Besevler-ANKARA



Volume 68 - Issue 2 - Aug 2019
  1. On some problems regarding set valued (α,ψ)-F-contractions
    Pages 1240 - 1255
    Muhammad Nazam , Hassen Aydi , Muhammad Arshad
  2. On the evolute offsets of ruled surfaces using the Darboux frame
    Pages 1256 - 1264
    Gülsüm Yeliz Şentürk , Salim Yüce
  3. On achromatic number of central graph of some graphs
    Pages 1265 - 1272
    N. Nithyadevi , D. Vijayalakshmi
  4. On the inverse problem for finite dissipative Jacobi matrices with a rank-one imaginary part
    Pages 1273 - 1288
    Ebru Ergun
  5. On Borel convergence of double sequences
    Pages 1289 - 1293
    Ulas Yamanci
  6. Equitable edge chromatic number of P_{m}⊗S_{n}⁰ and S_{m}⁰⊗S_{n}⁰
    Pages 1294 - 1300
    J. Veninstine Vivik
  7. f-Biminimal submanifolds of generalized space forms
    Pages 1301 - 1315
    Fatma Karaca
  8. Spectral expansion of Sturm-Liouville problems with eigenvalue-dependent boundary conditions
    Pages 1316 - 1334
    Nihal Yokuş , Esra Kır Arpat
  9. Vertex magic total labeling of middle and total graph of cycle
    Pages 1335 - 1340
    R. Vimal Kumar , D. Vijayalakshmi
  10. Degree based topological invariants of splitting graph
    Pages 1341 - 1349
    G Mohanappriya , D. Vijayalakshmi
  11. A note on dominator chromatic number of line graph and jump graph of some graphs
    Pages 1350 - 1358
    R. Kalaivani , D. Vijayalakshmi
  12. On generalized taxicab metric in three dimensional space
    Pages 1359 - 1369
    Harun Barış Çolakoğlu
  13. A note on harmonic maps of statistical manifolds
    Pages 1370 - 1376
    Fatma Muazzez Şimşir
  14. Weighted standard deviation method for X and S control charts
    Pages 1377 - 1386
    Derya Karagöz
  15. Global existence and stability results for Hadamard--Volterra--Stieltjes integral equations
    Pages 1387 - 1400
    Said Baghdad , Mouffak Benchohra
  16. Coefficient estimates for a new subclass of m-fold symmetric analytic bi-univalent functions
    Pages 1401 - 1410
    Serap Bulut
  17. Equilibrium and Stability Analysis of Takagi-Sugeno Fuzzy Delayed Cohen-Grossberg Neural Networks
    Pages 1411 - 1426
    Neyir Ozcan
  18. On the periodicity of the solution of a rational difference equation
    Pages 1427 - 1434
    A. M. Alotaibi , M. S. M. Noorani , M. A. El-Moneam
  19. The mean remaining strength of parallel systems in a stress-strength model based on exponential distribution
    Pages 1435 - 1451
    Fatih Kızılaslan
  20. Some Tauberian theorems for weighted means of double integrals
    Pages 1452 - 1461
    Gökşen Fındık , İbrahim Çanak
  21. On irregular coloring of wheel related graphs
    Pages 1462 - 1472
    A. Rohini , M. Venkatachalam
  22. On subsequentially convergent sequences
    Pages 1473 - 1481
    S.A. Sezer , İ. Çanak
  23. A numerical solution study on singularly perturbed convection-diffusion nonlocal boundary problem
    Pages 1482 - 1491
    Derya Arslan , Musa Cakir
  24. Coefficient bounds for a certain subclass of analytic and bi-univalent functions
    Pages 1492 - 1505
    Nizami Mustafa , Veysel Nezir
  25. The Topp-Leone generalized odd log-logistic family of distributions: properties, characterizations and applications
    Pages 1506 - 1527
    M. Ç. Korkmaz , H. M. Yousof , M. Alizadeh , G.G. Hamedani
  26. Investigation of the dependence structure in seismic hazard analysis: an application for Turkey
    Pages 1528 - 1542
    Serpil Ünal Karaçam
  27. Some generalized Hermite-Hadamard type inequalities by using the harmonic convexity of differentiable mappings
    Pages 1543 - 1555
    Muhammad Amer Latif , Sabir Hussain
  28. Improved Hermite Hadamard type inequalities for harmonically convex functions via Katugampola fractional integrals
    Pages 1556 - 1575
    Zeynep Şanlı , Tuncay Köroğlu , Mehmet Kunt
  29. Some characterizations for spacelike inclined curves
    Pages 1576 - 1585
    M. Aykut Akgun , A.Ihsan Sivridag
  30. A mathematical model of Hepatitis B transmission in Turkey
    Pages 1586 - 1595
    Meltem Gölgeli
  31. Texture spaces with ideal
    Pages 1596 - 1610
    Memet Kule , Şenol Dost
  32. A new result for weighted arithmetic mean summability factors of infinite series involving almost increasing sequences
    Pages 1611 - 1620
    Şebnem Yıldız
  33. Remarks on almost η-Ricci solitons in (ε)-para Sasakian manifolds
    Pages 1621 - 1628
    Adara M. Blaga , Selcen Yüksel Perktaş
  34. On strong N_{θ}^{α}(A,F)-convergence
    Pages 1629 - 1637
    Hacer Şengül , Zelal Arıca
  35. On equitable chromatic number of Tadpole graph T_{m,n}
    Pages 1638 - 1646
    K. Praveena , M. Venkatachalam
  36. Convolution Properties for Salagean-type Analytic Functions Defined by q- Difference Operator
    Pages 1647 - 1652
    Asena Çetinkaya
  37. Baues cofibration for quadratic modules of Lie algebras
    Pages 1653 - 1663
    Koray Yılmaz , Elis Soylu Yılmaz
  38. A simulation study of the Bayes estimator for parameters in Weibull distribution
    Pages 1664 - 1674
    Esin Köksal Babacan , Samet Kaya
  39. On a solvable system of difference equations of higher-order with period two coefficients
    Pages 1675 - 1693
    Yasin Yazlik , Merve Kara
  40. C-class functions on some coupled fixed point theorems in partially ordered S-metric spaces
    Pages 1694 - 1708
    Vishal Gupta , Arslan Hojat Ansari , Naveen Mani
  41. Portfolio selection based on a nonlinear neural network: An application on the Istanbul Stock Exchange (ISE30)
    Pages 1709 - 1723
    Ilgım Yaman , Türkan Erbay Dalkılıç
  42. Sequentially Hausdorff and full sequentially Hausdorff spaces
    Pages 1724 - 1732
    Hürmet Fulya Akız , Lokman Koçak
  43. (p,q)-Fibonacci and (p,q)-Lucas sums by the derivatives of some polynomials
    Pages 1733 - 1741
    B. Demirtürk Bitim , N. Topal
  44. The cubic eigenparameter dependent discrete Dirac equations with principal functions
    Pages 1742 - 1760
    Turhan Köprübaşı
  45. Henneberg's algebraic surfaces in Minkowski 3-space
    Pages 1761 - 1773
    Erhan Güler , Vahit Zambak
  46. The dimension of products of n homogeneous components in free lie algebras
    Pages 1774 - 1779
    Nil Mansuroğlu
  47. Approximately gamma-rings in proximal relator spaces
    Pages 1780 - 1796
    Mustafa Uçkun
  48. Principal functions of impulsive difference operators on semi axis
    Pages 1797 - 1810
    İbrahim Erdal , Şeyhmus Yardımcı
  49. Supra bT-set connected functions in supra topological spaces
    Pages 1811 - 1818
    K. Krishnaveni , M. Vigneshwaran
  50. On two types almost (α,F_{d})-contractions on quasi metric space
    Pages 1819 - 1830
    Hatice Aslan Hançer
  51. Fixed point results for Pata contraction on a metric space with a graph and its application
    Pages 1831 - 1840
    Maryam Ramezani , Asma Arian
  52. On some new inequalities of Hermite Hadamard types for hyperbolic p-convex functions
    Pages 1841 - 1851
    Zeinab Yehia , Nashat Faried , Mohamed S. S. Ali
  53. Schatten-von Neumann characteristic of infinite tridiagonal block operator matrices
    Pages 1852 - 1866
    Pembe Ipek Al , Zameddin Ismailov
  54. Prime ideals of nearness semirings
    Pages 1867 - 1878
    Mehmet Ali Öztürk , İrfan Temur
  55. The inverse kinematics of rolling contact of timelike curves lying on timelike surfaces
    Pages 1879 - 1894
    Mehmet Aydinalp , Mustafa Kazaz , Hasan Hüseyin Uğurlu
  56. Automatic structure for generalized Bruck-Reilly ∗-extension of a monoid
    Pages 1895 - 1908
    Eylem Güzel Karpuz
  57. Certain subclasses of bi-univalent functions related to k-Fibonacci numbers
    Pages 1909 - 1921
    H.Özlem Güney , G. Murugusundaramoorthy , Janusz Sokol
  58. Convergence of solutions of nonautonomous Nicholson's Blowflies model with impulses
    Pages 1922 - 1929
    Elif Demirci , Fatma Karakoç
  59. Spherical indicatrices of a Bertrand curve in three dimensional Lie groups
    Pages 1930 - 1938
    Ali Çakmak , Sezai Kızıltuğ
  60. The matrix sequence in terms of bi-periodic Fibonacci numbers
    Pages 1939 - 1949
    Arzu Coskun , Necati Taskara
  61. Loxodromes on helicoidal surfaces and tubes with variable radius in E⁴
    Pages 1950 - 1958
    Murat Babaarslan
  62. Some integral inequalities of the Hermite-Hadamard type for s-convex stochastic processes on n-coordinates
    Pages 1959 - 1973
    Nurgül Okur , Vildan Karahan
  63. ω-continuity on generalized neighbourhood systems
    Pages 1974 - 1982
    Esra Dalan Yıldırım
  64. On generic submanifold of Sasakian manifold with concurrent vector field
    Pages 1983 - 1994
    Halil ibrahim Yoldaş , Şemsi Eken Meriç , Erol Yaşar
  65. On Stancu type generalization of (p,q)-Baskakov-Kantorovich operators
    Pages 1995 - 2013
    Kadir Kanat , Melek Sofyalıoğlu
  66. Approximation by Nörlund and Riesz means in weighted Lebesgue space with variable exponent
    Pages 2014 - 2025
    Ahmet Testici
  67. A new subclass of uniformly spirallike functions with fixed coefficients
    Pages 2026 - 2036
    Geetha Balachandar
  68. A regression type estimator for mean estimation under ranked set sampling alongside the sensitivity issue
    Pages 2037 - 2049
    Usman Shahzad , Muhammad Hanif , Nursel Koyuncu , Amelia Victoria Garcia Luengo
  69. Fuzzy Markov chains modeling of aggregation processes
    Pages 2050 - 2063
    Nursin Bas Catak
  70. Algorithmic approach of cordial labeling on Cartesian product between balanced bipartite graph and path
    Pages 2064 - 2078
    Sumonta Ghosh , Anita Pal
  71. Position vectors of curves with recpect to Darboux frame in the Galilean space G³
    Pages 2079 - 2093
    Tevfik Şahin , Buket Ceylan Dirişen
  72. On (λ,A)-statistical convergence of order α
    Pages 2094 - 2103
    Hacer Şengül , Özlem Koyun
  73. The M-polynomial of line graph of subdivision graphs
    Pages 2104 - 2116
    Sourav Mondal , Nilanjan De , Anita Pal
  74. Local T2 extended pseudo-quasi-semi metric spaces
    Pages 2117 - 2127
    Tesnim Baran
  75. (alpha,m1,m2)-convexity and some inequalities of Hermite-Hadamard type
    Pages 2128 - 2142
    Huriye Kadakal
  76. An almost orthosymmetric bilinear map
    Pages 2143 - 2153
    Ruşen Yılmaz
  77. On some approximation properties of the Gauss-Weierstrass operators
    Pages 2154 - 2160
    Başar Yılmaz
  78. (θ,μ,τ)-neighborhood for analytic functions involving modified sigmoid function
    Pages 2161 - 2169
    Murat Çağlar , Halit Orhan
  79. Approximation properties of modified q-Bernstein-Kantorovich operators
    Pages 2170 - 2197
    Ana Maria Acu , Purshottam Agrawal , Dharmendra Kumar
  80. C^{∗}-algebra-valued rectangular b-metric spaces and some fixed point theorems
    Pages 2198 - 2208
    G. Kalpana , Z. Sumaiya Tasneem
  81. Properties of Δ^{∗}-closed maps in topological spaces
    Pages 2209 - 2215
    K. Meena , D. Arivuoli , K. Sivakamasundari
  82. Algebraic structure of square matrices over residuated lattices
    Pages 2216 - 2237
    Arsham Borumand Saeid , E Eslami , S Balaei
  83. Decision making for portfolio selection by fuzzy multi criteria linear programming
    Pages 2238 - 2257
    Serkan Akbaş , Türkan Erbay Dalkılıç
  84. Generalizations of some results on generalized polynomial identities
    Pages 2258 - 2263
    Münevver Pınar Eroğlu
  85. Mean ergodic type theorems
    Pages 2264 - 2271
    Gencay Oğuz , Cihan Orhan
  86. On the limit of discrete q-Hermite I polynomials
    Pages 2272 - 2282
    Rezan Sevinik Adıgüzel , Sakina Alwhishi , Mehmet Turan
  87. On a graph of ideals of a commutative ring
    Pages 2283 - 2297
    Mehdi Khoramdel , Shahabaddin Ebrahimi Atani , Saboura Dolati Pishhesari
  88. [1,2]-Complementary connected domination number of graphs-III
    Pages 2298 - 2312
    G. Mahadevan , K. Renuka
  89. Approximation properties of Bernstein-Kantorovich type operators of two variables
    Pages 2313 - 2323
    Döne Karahan , Aydın İzgi
  90. I-lacunary statistical convergence of weighted g via modulus functions in 2-normed spaces
    Pages 2324 - 2332
    Ekrem Savaş , Ulas Yamanci , Mehmet Gürdal
All Issues (1948-2018)