Metrikler
Yayın
82
Açık Erişim
13
Eğitim Bilgileri
2006 - 2019
2006 - 2019Lisans
Anadolu Üniversitesi, İktisat Fakültesi, İktisat Bölümü, Türkiye
2011 - 2014
2011 - 2014Doktora
Ege Üniversitesi, Fen Bilimleri Enstitüsü, Analiz Ve Fonksiyonlar Teorisi (Dr), Türkiye
2009 - 2011
2009 - 2011Yüksek Lisans
Ege Üniversitesi, Fen Bilimleri Enstitüsü, Analiz Ve Fonksiyonlar Teorisi (Yl) (Tezli), Türkiye
2005 - 2009
2005 - 2009Lisans
Ege Üniversitesi, Fen Fakültesi, Matematik Bölümü, Türkiye
Yaptığı Tezler
2014
2014Doktora
Zaman skalasında integral sınır koşullu impulsive sınır değer probleminin pozitif çözümleri
Ege Üniversitesi, Fen Bilimleri Enstitüsü, Analiz Ve Fonksiyonlar Teorisi (Dr)
2011
2011Yüksek Lisans
Zaman skalasında bir boyutlu p-laplacian sınır değer problemlerinin pozitif çözümleri
Ege Üniversitesi, Fen Bilimleri Enstitüsü, Analiz Ve Fonksiyonlar Teorisi (Yl) (Tezli)
Araştırma Alanları
Matematik
Diferansiyel denklemler
Dinamik Sistemler ve Ergodik Kuramı
Fonksiyonel Analiz
İntegral Denklemleri
Akademik Ünvanlar / Görevler
2023 - Devam Ediyor
2023 - Devam EdiyorProf. Dr.
Gazi Üniversitesi, Fen Fakültesi, Matematik
2020 - 2023
2020 - 2023Doç. Dr.
Gazi Üniversitesi, Fen Fakültesi, Matematik
2014 - 2020
2014 - 2020Araştırma Görevlisi
Gazi Üniversitesi, Fen Fakültesi, Matematik
2014 - 2015
2014 - 2015Uzman
Georgia State University, Neuroscience Institute
Akademi Dışı Deneyim
2014 - 2015
2014 - 2015Doktora Sonrası Araştırmacı
Neuroscience Institute, Georgia State University, Atlanta, Georgia, Amerika Birleşik Devletleri, Doktora Sonrası Araştırmacı
Makaleler
Tümü (45)
SCI-E, SSCI, AHCI (37)
SCI-E, SSCI, AHCI, ESCI (40)
ESCI (3)
Scopus (40)
TRDizin (3)
Diğer Yayınlar (2)
2025
20251. Continuous-Time and Discrete-Time Quasilinear Systems with Asymptotically Unpredictable Solutions
Fen M. O., FEN F.
Mediterranean Journal of Mathematics
, cilt.22, sa.6, 2025 (SCI-Expanded, Scopus)
2024
20242. Asymptotically unpredictable trajectories in semiflows
Fen M. O., FEN F.
Communications in Nonlinear Science and Numerical Simulation
, cilt.134, 2024 (SCI-Expanded, Scopus)
2024
20243. Generation of Synchronous Unpredictable Oscillations by Coupled Hopfield Neural Networks
Fen M. O., FEN F.
Journal of Applied Nonlinear Dynamics
, cilt.13, sa.3, ss.591-602, 2024 (ESCI, Scopus)
2023
20234. Unpredictability in Quasilinear Non-Autonomous Systems with Regular Moments of Impulses
Fen M. O., Tokmak Fen F.
Mediterranean Journal of Mathematics
, cilt.20, sa.4, 2023 (SCI-Expanded, Scopus)
2023
20235. Modulo periodic Poisson stable solutions of dynamic equations on a time scale
FEN F., FEN M. O.
COMMUNICATIONS FACULTY OF SCIENCES UNIVERSITY OF ANKARA-SERIES A1 MATHEMATICS AND STATISTICS
, cilt.72, sa.4, ss.907-920, 2023 (ESCI, TRDizin)
2023
20236. A novel criterion for unpredictable motions
FEN F., Fen M. O., AKHMET M.
Filomat
, cilt.37, sa.18, ss.6151-6160, 2023 (SCI-Expanded, Scopus)
2022
20227. Replication of Period-Doubling Route to Chaos in Coupled Systems with Delay
Fen M. O., FEN F.
FILOMAT
, cilt.36, sa.2, ss.599-613, 2022 (SCI-Expanded, Scopus)
2022
20228. Quasilinear systems with unpredictable relay perturbations
Fen M. O., FEN F.
TURKISH JOURNAL OF MATHEMATICS
, cilt.46, ss.1369-1383, 2022 (SCI-Expanded, Scopus, TRDizin)
2021
20219. Unpredictable oscillations of SICNNs with delay
Fen M. O., FEN F.
NEUROCOMPUTING
, cilt.464, ss.119-129, 2021 (SCI-Expanded, Scopus)
2019
201910. Homoclinical Structure of Retarded SICNNs with Rectangular Input Currents
Fen M. O., FEN F.
NEURAL PROCESSING LETTERS
, cilt.49, sa.2, ss.521-538, 2019 (SCI-Expanded, Scopus)
2019
201911. Replication of period-doubling route to chaos in impulsive systems
Fen M. O., Fen F.
ELECTRONIC JOURNAL OF QUALITATIVE THEORY OF DIFFERENTIAL EQUATIONS
, sa.58, ss.1-20, 2019 (SCI-Expanded, Scopus)
2018
201812. ON THE SOLUTIONS OF A MULTI-POINT BVP FOR FRACTIONAL DIFFERENTIAL EQUATIONS WITH IMPULSES
FEN F.
MISKOLC MATHEMATICAL NOTES
, cilt.19, sa.2, ss.847-863, 2018 (SCI-Expanded)
2017
201713. Existence of positive solutions for fourth-order impulsive integral boundary value problems on time scales
FEN F., Karaca I. Y.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
, cilt.40, sa.16, ss.5727-5741, 2017 (SCI-Expanded, Scopus)
2017
201714. HOMOCLINIC AND HETEROCLINIC MOTIONS IN HYBRID SYSTEMS WITH IMPACTS
Fen M. O., Fen F.
MATHEMATICA SLOVACA
, cilt.67, sa.5, ss.1179-1188, 2017 (SCI-Expanded, Scopus)
2017
201715. SICNNs with Li-Yorke chaotic outputs on a time scale
Fen M. O., FEN F.
NEUROCOMPUTING
, cilt.237, ss.158-165, 2017 (SCI-Expanded, Scopus)
2017
201716. EXISTENCE OF POSITIVE SOLUTIONS FOR A NONLINEAR nTH-ORDER m-POINT p-LAPLACIAN IMPULSIVE BOUNDARY VALUE PROBLEM
Karaca I. Y., FEN F.
MATHEMATICA SLOVACA
, cilt.67, sa.2, ss.467-482, 2017 (SCI-Expanded, Scopus)
2017
201717. Positive Solutions of Boundary Value Problems for p-Laplacian Fractional Differential Equations
FEN F., Karaca I. Y., ÖZEN Ö.
FILOMAT
, cilt.31, sa.5, ss.1265-1277, 2017 (SCI-Expanded, Scopus)
2016
201618. POSITIVE SOLUTIONS OF nTH-ORDER m-POINT BOUNDARY VALUE PROBLEMS
Karaca I. Y., Fen F.
BULLETIN OF THE IRANIAN MATHEMATICAL SOCIETY
, cilt.42, sa.6, ss.1429-1439, 2016 (SCI-Expanded, Scopus)
2016
201619. On Positive Solutions of Nonlinear Third-Order Impulsive Boundary Value Problems on Time Scales
Karaca I. Y., FEN F.
MEDITERRANEAN JOURNAL OF MATHEMATICS
, cilt.13, sa.6, ss.4447-4461, 2016 (SCI-Expanded, Scopus)
2016
201620. EXISTENCE OF POSITIVE SOLUTIONS FOR NONLINEAR THIRD-ORDER m-POINT IMPULSIVE BOUNDARY-VALUE PROBLEMS ON TIME SCALES
Karaca I. Y., Fen F.
UKRAINIAN MATHEMATICAL JOURNAL
, cilt.68, sa.3, ss.458-474, 2016 (SCI-Expanded, Scopus)
2016
201621. On the Solvability of a System of Multi-Point Second Order Boundary Value Problem
Cerdiki T. S., Karaca I. Y., Sinanoglu A., FEN F.
JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS
, cilt.20, sa.4, ss.666-673, 2016 (SCI-Expanded, Scopus)
2016
201622. Existence of Positive Solutions for Nonlinear Second-Order Impulsive Boundary Value Problems on Time Scales
FEN F., Karaca I. Y.
MEDITERRANEAN JOURNAL OF MATHEMATICS
, cilt.13, sa.1, ss.191-204, 2016 (SCI-Expanded, Scopus)
2016
201623. EXISTENCE OF POSITIVE SOLUTIONS TO nTH ORDER p-LAPLACIAN BOUNDARY VALUE PROBLEMS WITH INTEGRAL BOUNDARY CONDITIONS
Karaca I. Y., FEN F.
MISKOLC MATHEMATICAL NOTES
, cilt.17, sa.1, ss.381-397, 2016 (SCI-Expanded, Scopus)
2016
201624. Positive solutions of nth-order impulsive differential equations with integral boundary conditions
FEN F., Karaca I. Y.
ANALELE STIINTIFICE ALE UNIVERSITATII OVIDIUS CONSTANTA-SERIA MATEMATICA
, cilt.24, sa.1, ss.243-261, 2016 (SCI-Expanded, Scopus)
2015
201525. Nonlinear Four-point Impulsive Fractional Differential Equations with p-Laplacian Operator
Fen F., Karaca İ.
Discontinuity, Nonlinearity, and Complexity , cilt.4, sa.4, ss.467-486, 2015 (Scopus)
2015
201526. On positive solutions of m-point boundary value problems for p-Laplacian impulsive dynamic equations on time scales
FEN F., Karaca I. Y.
INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS
, cilt.46, sa.5, ss.723-738, 2015 (SCI-Expanded, Scopus)
2015
201527. Positive solutions of nth-order m-point impulsive boundary value problems
Karaca I. Y., FEN F.
GEORGIAN MATHEMATICAL JOURNAL
, cilt.22, sa.3, ss.373-384, 2015 (SCI-Expanded, Scopus)
2015
201528. Positive Solutions of nth-Order Boundary Value Problems with Integral Boundary Conditions
Karaca I. Y., FEN F.
MATHEMATICAL MODELLING AND ANALYSIS
, cilt.20, sa.2, ss.188-204, 2015 (SCI-Expanded, Scopus)
2015
201529. Multiple Positive Solutions for Nonlinear Second-Order m-Point Impulsive Boundary Value Problems on Time Scales
Karaca I. Y., Fen F.
FILOMAT
, cilt.29, sa.4, ss.817-827, 2015 (SCI-Expanded, Scopus)
2015
201530. EIGENVALUES FOR ITERATIVE SYSTEMS OF DYNAMIC EQUATIONS WITH INTEGRAL BOUNDARY CONDITIONS
Karaca I. Y., Fen F.
COMMUNICATIONS FACULTY OF SCIENCES UNIVERSITY OF ANKARA-SERIES A1 MATHEMATICS AND STATISTICS
, cilt.64, sa.1, ss.87-97, 2015 (ESCI, TRDizin)
2014
201431. Existence of Positive Solutions for a Second Order Eigenvalue Boundary Value Problem with Impulse on Time Scales
FEN F., KARACA İ.
Journal of Advanced Research in Applied Mathematics , cilt.6, sa.2, ss.32-49, 2014 (Hakemli Dergi)
2014
201432. Existence of positive solutions for boundary value problems of p-Laplacian difference equations
FEN F., Karaca I. Y.
ADVANCES IN DIFFERENCE EQUATIONS
, 2014 (SCI-Expanded, Scopus)
2014
201433. Existence of positive solutions for p-Laplacian impulsive boundary value problems on time scales
Tokmak F., Karaca I. Y.
JOURNAL OF INEQUALITIES AND APPLICATIONS
, 2014 (SCI-Expanded, Scopus)
2014
201434. Existence of three symmetric positive solutions for a second-order multi-point boundary value problem on time scales
Sinanoglu A., Karaca I. Y., Tokmak F., Senlik T.
ADVANCES IN DIFFERENCE EQUATIONS
, 2014 (SCI-Expanded, Scopus)
2014
201435. Eigenvalues for iterative systems of nonlinear m-point boundary value problems on time scales
Karaca I. Y., Tokmak F.
BOUNDARY VALUE PROBLEMS
, 2014 (SCI-Expanded, Scopus)
2014
201436. Multiple positive solutions of boundary value problems for p-laplacian impulsive dynamic equations on time scales
Karaca I. Y., Ozen O. B., Tokmak F.
Fixed Point Theory
, cilt.15, sa.2, ss.475-486, 2014 (SCI-Expanded, Scopus)
2014
201437. Existence of Solutions for Nonlinear Impulsive Fractional Differential Equations with p-Laplacian Operator
Karaca I. Y., Tokmak F.
MATHEMATICAL PROBLEMS IN ENGINEERING
, cilt.2014, 2014 (SCI-Expanded, Scopus)
2014
201438. Positive Solutions of Boundary Value Problems for Second order p Laplacian Difference Equations
FEN F., KARACA İ.
International Journal of Difference Equations , cilt.9, sa.2, ss.243-269, 2014 (Scopus)
2014
201439. Existence of positive solutions for nonlinear third-order m-point boundary value problems on time scales
Karaca I. Y., Tokmak F.
Filomat
, cilt.28, sa.5, ss.925-935, 2014 (SCI-Expanded, Scopus)
2013
201340. Existence of symmetric positive solutions for a multipoint boundary value problem with sign-changing nonlinearity on time scales
Tokmak F., Karaca I. Y.
Boundary Value Problems
, cilt.2013, 2013 (SCI-Expanded, Scopus)
2013
201341. Existence of positive solutions for third-order boundary value problems with integral boundary conditions on time scales
Karaca I. Y., Tokmak F.
Journal of Inequalities and Applications
, cilt.2013, 2013 (SCI-Expanded, Scopus)
2013
201342. Positive solutions for second order multi point boundary value problems
FEN F., KARACA İ.
Chaotic Modeling and Simulation , cilt.3, ss.463-471, 2013 (Hakemli Dergi)
2013
201343. Positive solutions of an impulsive second order boundary value problem on time scales
FEN F., KARACA İ.
Dynamics Of Continuous Discrete And Impulsive Systems-Series A-Mathematical Analysis
, cilt.20, sa.1, ss.695-708, 2013 (Scopus)
2012
201244. Existence of positive solutions for third-order m -point boundary value problems with sign-changing nonlinearity on time scales
Tokmak F., Karaca I. Y.
Abstract and Applied Analysis
, cilt.2012, 2012 (SCI-Expanded, Scopus)
2011
201145. Existence of three positive solutions for M-point time scale boundary value problems on infinite intervals
Ilkay Y. K., Tokmak F.
Dynamic Systems and Applications
, cilt.20, sa.2-3, ss.355-368, 2011 (SCI-Expanded, Scopus)
Hakemli Bilimsel Toplantılarda Yayımlanmış Bildiriler
2024
20241. Dynamic Equations with Modulo Periodic Poisson Stable Oscillations on Periodic Time Scales
Fen F., Fen M. O.
The Third International Conference on Applied Mathematics in Engineering (ICAME’24) , Balıkesir, Türkiye, 26 - 28 Haziran 2024, ss.54, (Özet Bildiri)
2024
20242. Generation of Discontinuous Unpredictable Motions by Quasi-linear Systems with Regular Moments of Impulses
Fen M. O., Fen F.
The 3rd International Conference on Applied Mathematics in Engineering (ICAME’24), Balıkesir, Türkiye, 26 - 28 Haziran 2024, ss.211, (Özet Bildiri)
2023
20233. Unpredictability in Retarded Shunting Inhibitory Cellular Neural Networks
Fen F., Fen M. O.
IV International Conference on Mathematics and its Applications in Science and Engineering (ICMASE 2023), Madrid, İspanya, 12 - 14 Temmuz 2023, ss.77, (Özet Bildiri)
2019
20194. Zaman Skalası Üzerindeki Sınır Değer Problemlerinin Pozitif Çözümleri
KARACA İ., FEN F.
14. Ankara Matematik Günleri, Ankara, Türkiye, 28 - 29 Haziran 2019, (Özet Bildiri)
2018
20185. Retarded SICNNs with Homoclinic and Heteroclinic Outputs
FEN F., FEN M. O.
International Conference on Mathematical Studies and Applications 2018 (ICMSA 2018), 4 - 06 Ekim 2018, (Özet Bildiri)
2018
20186. Third Order Impulsive Boundary Value Problems on Time Scales with Positive Solutions
KARACA İ., FEN F.
International Conference on Applied Mathematics in Engineering (ICAME18), Balıkesir, Türkiye, 27 - 29 Haziran 2018, (Özet Bildiri)
2018
20187. Period-doubling Route to Chaos in Systems with Impulsive Effects
FEN F., FEN M. O.
International Conference on Applied Mathematics in Engineering (ICAME18), 27 - 29 Haziran 2018, (Özet Bildiri)
2014
20148. Eigenvalues for iterative systems of nonlinear boundary value problems
KARACA İ., FEN F.
International Conference on Nonlinear Differential and Difference Equations: Recent Developments and Applications (ICNDDE 2014), Antalya, Türkiye, 27 - 30 Mayıs 2014, (Özet Bildiri)
2017
20179. Chaotic Dynamics of SICNNs on a Time Scale
FEN F., FEN M. O.
International Workshop on Mathematical Methods in Engineering (MME2017), 27 - 29 Nisan 2017, (Özet Bildiri)
2015
201510. Positive Solutions for a Fourth-Order Multipoint Impulsive BVP with p-Laplacian on Time Scales
FEN F., KARACA İ.
THE SEVENTH INTERNATIONAL CONFERENCE ON DYNAMIC SYSTEMS AND APPLICATIONS THE FIFTH INTERNATIONAL CONFERENCE ON NEURAL, PARALLEL, AND SCIENTIFIC COMPUTATIONS, Atlanta, Amerika Birleşik Devletleri, 27 - 30 Mayıs 2015, cilt.7, ss.83-89, (Tam Metin Bildiri)
2016
201611. Hücresel Sinir Ağları Modellerinde Homoklinik ve Heteroklinik Yörüngeler
FEN M. O., FEN F.
11. Ankara Matematik Günleri, Ankara, Türkiye, 26 - 27 Mayıs 2016, (Özet Bildiri)
2016
201612. Homoclinical Structure of Hybrid Systems with Impacts
FEN M. O., FEN F.
3rd International Conference on Recent Advances in Pure and Applied Mathematics, 19 - 23 Mayıs 2016, (Özet Bildiri)
2015
201513. Impulsive Boundary Value Problem for Nonlinear DifferentialEquations of Fractional Order 2 3
KARACA İ., FEN F.
4th International Eurasian Conference on Mathematical Sciences and Applications (IECMSA-2015), Atina, Yunanistan, 31 Ağustos - 03 Eylül 2015, (Özet Bildiri)
2015
201514. On the Solutions of a Multi Point BVP for Impulsive Fractional Differential Equations
FEN F.
Carolina Dynamics Symposium 2015, Atlanta, Amerika Birleşik Devletleri, 24 - 26 Nisan 2015, (Özet Bildiri)
2015
201515. Nonlinear Second Order Impulsive Boundary Value Problems
FEN F., KARACA İ.
2015 Georgia Scientific Computing Symposium, Atlanta, Amerika Birleşik Devletleri, 28 Şubat 2015, (Özet Bildiri)
2014
201416. Nonlinear four point impulsive fractional differential equations with p Laplacian operator
FEN F., KARACA İ.
5th International Conference on Nonlinear Science and Complexity, Xi’xxan, Çin, 4 - 09 Ağustos 2014, (Özet Bildiri)
2014
201417. Existence Results for Nonlinear Impulsive Fractional Differential Equations with p Laplacian Operator
KARACA İ., FEN F.
International Congress in Honour of Professor Ravi P. Agarwal, Bursa, Türkiye, 23 - 26 Haziran 2014, (Özet Bildiri)
2014
201418. Existence of Positive Solutions for Non Homogeneous BVPs of p Laplacian Difference Equations
FEN F., KARACA İ.
International Congress in Honour of Professor Ravi P. Agarwal, Bursa, Türkiye, 23 - 26 Haziran 2014, (Özet Bildiri)
2014
201419. Existence of positive solutions for p Laplacian impulsive boundary value problems
FEN F., KARACA İ.
International Conference on Nonlinear Differential and Difference Equations: Recent Developments and Applications (ICNDDE 2014), Antalya, Türkiye, 27 - 30 Mayıs 2014, (Özet Bildiri)
2014
201420. Positive Solutions of Boundary Value Problems for Second Order p Laplacian Difference Equations
FEN F., KARACA İ.
The International Workshop on Progress in Difference Equations, İzmir, Türkiye, 21 - 24 Mayıs 2014, (Özet Bildiri)
2013
201321. Existence of positive solutions for nonlinear third order m point boundary value problems on time scales
KARACA İ., FEN F.
The Algerian-Turkish International Days on Mathematics 2013, İstanbul, Türkiye, 12 - 14 Eylül 2013, (Özet Bildiri)
2013
201322. On the Solvability of a System of Multi Point Second Order Boundary Value Problem
Şenlik T., KARACA İ., Sinanoğlu A., FEN F.
2nd International Eurasian Conference on Mathematical Sciences and Applications (IECMSA-2013), Saraybosna, Bosna-Hersek, 26 - 29 Ağustos 2013, (Özet Bildiri)
2013
201323. The Existence of Symmetric Positive Solutions for a Nonlinear Multi Point Boundary Value Problem on Time Scales
FEN F., KARACA İ., Senlik T., Sinanoglu A.
2nd International Eurasian Conference on Mathematical Sciences and Applications, Saraybosna, Bosna-Hersek, 26 - 29 Ağustos 2013, (Özet Bildiri)
2013
201324. Existence of Three Symmetric Positive Solutions for a Second Order Multi Point Boundary Value Problem on Time Scales
Sinanoğlu A., KARACA İ., FEN F., Şenlik T.
2nd International Eurasian Conference on Mathematical Sciences and Applications (IECMSA-2013), Saraybosna, Bosna-Hersek, 26 - 29 Ağustos 2013, (Özet Bildiri)
2013
201325. Existence of Positive Solutions for Third Order Boundary Value Problems with Integral Boundary Conditions on Time Scales
KARACA İ., FEN F.
Anatolian Communications in Nonlinear Analysis, Bolu, Türkiye, 3 - 06 Temmuz 2013, (Özet Bildiri)
2013
201326. Existence of Positive Solutions for p Laplacian Impulsive Boundary Value Problems on Time Scales
FEN F., KARACA İ.
International Conference on Applied Analysis and Mathematical Modelling, İstanbul, Türkiye, 2 - 05 Haziran 2013, (Özet Bildiri)
2013
201327. Eigenvalues for Iterative Systems of Nonlinear m point Boundary Value Problems on Time Scales
KARACA İ., FEN F.
International Conference on Applied Analysis and Mathematical Modelling, İstanbul, Türkiye, 2 - 05 Haziran 2013, (Özet Bildiri)
2012
201228. Positive Solutions For Second Order Impulsive Boundary Value Problems on Time Scales
FEN F., KARACA İ.
The 11th International Workshop on Dynamical Systems and Applications, Ankara, Türkiye, 26 - 28 Haziran 2012, (Özet Bildiri)
2012
201229. Existence of Symmetric Positive Solutions for m point Boundary Value Problem with Sign Changing Nonlinearity on Time Scales
FEN F., KARACA İ.
International Conference on Applied Analysis and Algebra 2012, İstanbul, Türkiye, 20 - 24 Haziran 2012, (Özet Bildiri)
2011
201130. Triple positive solutions of m point time scale BVPs with p Laplacian on infinite intervals
KARACA İ., FEN F.
Sixth International Conference on Dynamic Systems and Applications, Atlanta, Amerika Birleşik Devletleri, 25 - 28 Mayıs 2011, cilt.6, ss.205-212, (Tam Metin Bildiri)
Kitaplar
2024
20241. Period-Doubling Route to Chaos and Intermittency in a Hybrid Rössler Model
Fen M. O., Fen F.
EMERGING TOPICS ON MATHEMATICS - Theory and Practise, Duygu Aruğaslan Çinçin,Sırma Zeynep Alparslan Gök, Editör, Nobel Yayınevi, Ankara, ss.21-37, 2024