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Doç.Dr.

Hidayet Hüda KÖSAL

Fen Fakültesi

Matematik Bölümü

İletişim

hhkosal@sakarya.edu.tr

(264) 295 73 28

1.1 A-SCI, SCI-E, SSCI VEYA AHCI KAPSAMINDAKİ DERGİLERDE YAYIMLANMIŞ MAKALE (Q1 OLARAK TARANAN DERGİDE) :
1 Kösal, HH; Kisi, E; Akyigit, M; Celik, B; - Elliptic Quaternion Matrices: Theory and Algorithms - AXIOMS - Vol.13 - DOI : 10.3390/axioms13100656 - OCT - English - Article - 2024 - WOS:001342620200001
2 Atali, Gokhan; Kosal, Hidayet Huda; Pekyaman, Muge; - A new image restoration model associated with special elliptic quaternionic least-squares solutions based on LabVIEW - JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS - Vol.425 - ISSN : 0377-0427 - DOI : 10.1016/j.cam.2023.115071 - English - Article - 2023 - WOS:000922900000001
3 Kosal, Hidayet Huda; Pekyaman, Muge; - Algebraic techniques for the least squares problems in elliptic complex matrix theory and their applications - MATHEMATICAL METHODS IN THE APPLIED SCIENCES - Vol.45 - pp.12136 - ISSN : 0170-4214 - DOI : 10.1002/mma.7618 - English - Article - 2022 - WOS:000665850000001
4 Kosal, HH; Pekyaman, M; - Algebraic techniques for the least squares problems in elliptic complex matrix theory and their applications - MATHEMATICAL METHODS IN THE APPLIED SCIENCES - ISSN : 0170-4214 - DOI : 10.1002/mma.7618 - - English - Early Access - 2021 - WOS:000665850000001
1.1 B-SCI, SCI-E, SSCI VEYA AHCI KAPSAMINDAKİ DERGİLERDE YAYIMLANMIŞ MAKALE (Q2 OLARAK TARANAN DERGİDE) :
1 Eren, K; Kosal, HH; - Evolution of space curves and the special ruled surfaces with modified orthogonal frame - AIMS MATHEMATICS - Vol.5 - pp.2027 - DOI : 10.3934/math.2020134 - 2020 - English - Article - 2020 - WOS:000520850800024
2 Kosal, HH; Tosun, M; - Universal similarity factorization equalities for commutative quaternions and their matrices - LINEAR & MULTILINEAR ALGEBRA - Vol.67 - pp.926 - ISSN : 0308-1087 - DOI : 10.1080/03081087.2018.1439878 - English - Article - 2019 - WOS:000461190700005
3 Kosal, HH; Akyigit, M; Tosun, M; - CONSIMILARITY OF COMMUTATIVE QUATERNION MATRICES - MISKOLC MATHEMATICAL NOTES - Vol.16 - pp.965 - ISSN : 1787-2405 - English - Article - 2015 - WOS:000371145000027
4 Kösal H. ; Akyiğit M. ; Tosun M. ; - Consimilarity of commutative quaternion matrices - Miskolc Mathematical Notes - Vol.16 - pp.965 - ISSN : 17872405 - DOI : 10.18514/MMN.2015.1421 - English - Article - 2015 - SCOPUS_ID:84958183364
1.1 C-SCI, SCI-E, SSCI VEYA AHCI KAPSAMINDAKİ DERGİLERDE YAYIMLANMIŞ MAKALE (Q3 OLARAK TARANAN DERGİDE) :
1 Yildiz, OG; Kosal, HH; Tosun, M; - On the Semisimilarity and Consemisimilarity of Split Quaternions - ADVANCES IN APPLIED CLIFFORD ALGEBRAS - Vol.26 - pp.847 - ISSN : 0188-7009 - DOI : 10.1007/s00006-015-0633-y - English - Article - 2016 - WOS:000376414600019
2 Kosal, HH; Tosun, M - Commutative Quaternion Matrices - ADVANCES IN APPLIED CLIFFORD ALGEBRAS - Vol.24 - pp.769 - ISSN : 0188-7009 - DOI : 10.1007/s00006-014-0449-1 - SEP - English - Article - 2014 - WOS:000342424700007
3 Akyigit, M; Kosal, HH; Tosun, M - Fibonacci Generalized Quaternions - ADVANCES IN APPLIED CLIFFORD ALGEBRAS - Vol.24 - pp.631 - ISSN : 0188-7009 - DOI : 10.1007/s00006-014-0458-0 - SEP - English - Article - 2014 - WOS:000342424700001
4 HİDAYET HÜDA KÖSAL; MURAT TOSUN; - Commutative Quaternion Matrices - Advances in Applied Clifford Algebras - Vol.24 - pp.769 - ISSN : 1661-4909 - DOI : 10.1007/s00006-014-0449-1 - 2014
5 Akyigit, M; Kosal, HH; Tosun, M; - Split Fibonacci Quaternions - ADVANCES IN APPLIED CLIFFORD ALGEBRAS - Vol.23 - pp.535 - ISSN : 0188-7009 - DOI : 10.1007/s00006-013-0401-9 - SEP - English - Article - 2013 - WOS:000323070100001
1.1 D-SCI, SCI-E, SSCI VEYA AHCI KAPSAMINDAKİ DERGİLERDE YAYIMLANMIŞ MAKALE (Q4 OLARAK TARANAN DERGİDE) :
1 Kosal, HH; - Least-squares solutions of the reduced biquaternion matrix equation AX=B and their applications in colour image restoration - JOURNAL OF MODERN OPTICS - Vol.66 - pp.1802 - ISSN : 0950-0340 - DOI : 10.1080/09500340.2019.1676474 - English - Article - 2019 - WOS:000490423100001
2 Kosal, HH; Tosun, M; - Some Equivalence Relations and Results over the Commutative Quaternions and Their Matrices - ANALELE STIINTIFICE ALE UNIVERSITATII OVIDIUS CONSTANTA-SERIA MATEMATICA - Vol.25 - pp.125 - ISSN : 1224-1784 - DOI : 10.1515/auom-2017-0040 - English - Article - 2017 - WOS:000419708400010
3 Kosal, HH; Akyigit, M; Tosun, M; - On the Consimilarity of Split Quaternions and Split Quaternion Matrices - Analele Stiintifice ale Universitatii Ovidius Constanta-Seria Matematica - Vol.24 - pp.189 - ISSN : 1224-1784 - DOI : 10.1515/auom-2016-0054 - English - Article - 2016 - WOS:000392747700010
1.2-ESCI VE/VEYA SCOPUS KAPSAMINDAKİ DERGİLERDE YAYIMLANMIŞ MAKALE :
1 Akyigit, M; Eren, K; Kosal, HH; - TUBULAR SURFACES WITH MODIFIED ORTHOGONAL FRAME IN EUCLIDEAN 3-SPACE - HONAM MATHEMATICAL JOURNAL - Vol.43 - pp.453 - ISSN : 1225-293X - DOI : 10.5831/HMJ.2021.43.3.453 - SEP 2021 - English - Article - 2021 - WOS:000755048500007
2 Kosal, HH; Bilgili, T; - Euler and De Moivre's Formulas for Fundamental Matrices of Commutative Quaternions - INTERNATIONAL ELECTRONIC JOURNAL OF GEOMETRY - Vol.13 - pp.98 - ISSN : 1307-5624 - DOI : 10.36890/IEJG.768821 - OCT 15 2020 - English - Article - 2020 - WOS:000581933500009
1.3-ÜAK VE SAKARYA ÜNİVERSİTESİ SENATOSU TARAFINDAN BELİRLENEN ULUSLARARASI ALAN ENDEKSLERİNDE TARANAN DERGİLERDE YAYIMLANMIŞ VEYA ULAKBİM, TR-DİZİN TARAFINDAN TARANAN ULUSAL HAKEMLİ DERGİLERDE YAYIMLANMIŞ MAKALE :
1 Ci̇han, A., Kösal, H., Güngör, M. - A Note on Gershgorin Disks in the Elliptic Plane - Journal of mathematical sciences and modelling (Online) - pp.104 - DOI : 10.33187/jmsm.986344 - eng - paper - 2021 - TRDizin
2 Eren, K., Kösal, H. - Numerical Algorithm for Solving General Linear Elliptic Quaternionic Matrix Equations - Fundamental journal of mathematics and applications (Online) - pp.180 - DOI : 10.33401/fujma.888705 - eng - paper - 2021 - TRDizin
3 Kösal, H., Bi̇lgi̇li̇, T. - Euler and De Moivre’s Formulas for Fundamental Matrices of Commutative Quaternions - International Electronic Journal of Geometry - pp.98 - DOI : 10.36890/iejg.768821 - eng - paper - 2020 - TRDizin
4 Onder Gokmen Yildiz, Hidayet Huda Kosal, Murat Tosun - On the Semisimilarity and Consemisimilarity of Split Quaternions - Advances in Applied Clifford Algebras - DOI : 10.1007/s00006-015-0633-y - 2016
5 MAHMUT AKYİĞİT; HİDAYET HÜDA KÖSAL; MURAT TOSUN; - A Note on Matrix Representations of Split Quaternions - Journal of Advanced Research in Applied Mathematics - Vol.Volume 7, Issue 2 - pp.26-39 - ISSN : 1942-9649 - DOI : 10.5373/jaram.2106.080514 - 2015
7.3-ULUSLARARASI KONGRE VE SEMPOZYUMLARDA SÖZLÜ OLARAK SUNULAN VE ÖZET METİN OLARAK YAYIMLANAN TEBLİĞ :
1 Hidayet Hüda Kösal, Kemal Eren, Mahmut Akyiğit - Euler and De Moivre's Formulas for Fundamental Matrices of Elliptic Quaternions - 2022
2 Hidayet Hüda Kosal, Kemal Eren, Mahmut Akyiğit, Beyza Çelik - Elliptic quaternion matrix theory and its applications - 2022
3 HİDAYET HÜDA KÖSAL; - A Note on Matrix Representation of Split Quaternions - 2015
4 HİDAYET HÜDA KÖSAL; IŞIL ARDA KÖSAL - Equivalence Relations on Quaternion MAtrices - 2015
5 MAHMUT AKYİĞİT; HİDAYET HÜDA KÖSAL; MURAT TOSUN - A Note on Matrix Representations of Split Quaternions - 2015
6 Isıl ARDA KOSAL and HİDAYET HÜDA KÖSAL; - On Derivatives of Functions over Generalized Cayley-Dickson Algebras - 2014
7 HİDAYET HÜDA KÖSAL; MAHMUT AKYİĞİT; MURAT TOSUN; - Consimilarity of Commutative Quaternions Matrices - 2014
8 HİDAYET HÜDA KÖSAL; MAHMUT AKYİĞİT; MURAT TOSUN; - Consimilarity of Split Quaternion Matrices and a Solution of the Split Quaternion Matrix Equation X-AX_B= C - 2014
9 HİDAYET HÜDA KÖSAL; - A Note on Matrix Representations of Split Quaternions - 2014
10 Hidayet Hüda KÖSAL, Murat TOSUN - Commutative QUaternion Matrices - 26-29 August - 2013
11 Akyiğit M., Kösal H. H., Tosun M. - Fibonacci Split Quaternions - 03-07 September - 2012
12 Akyiğit M., Kösal H. H., Tosun M - A Note on Fibonacci Generalized Quaternions - 03-07 September - 2012
13 Kösal H. H., Akyiğit M., Tosun M - Euler’s Formula and De-Moivre’s Formula for Dual Hyperbolic Quaternions - 03-07 September - 2012
7.7-ULUSAL KONGRE VE SEMPOZYUMLARDA SÖZLÜ OLARAK SUNULAN VE ÖZET METİN OLARAK YAYIMLANAN TEBLİĞ :
1 MAHMUT AKYİĞİT; HİDAYET HÜDA KÖSAL; MURAT TOSUN; - On Solutions to the Commutative Quaternion Matrix Equations AX 􀀀 XB = C; AeX 􀀀 XB = C and AeX 􀀀 XB = C - 2014
2 Kösal H. H., Akyiğit M., Tosun M. - Hyperbolic Bi-Quaternions - 01-05 Temmuz - 2013
3 Kösal H.H., Akyiğit M., Tosun M. - Euler’s Formula and De-Moivre’s Formula for Hyperbolic Quaternions - 13-16 Haziran - 2012
4 Hidayet Hüda KÖSAL, Emine S. SEYRANTEPE - CATEGORICAL STRUCTURE OF PASCH GEOMETRIES - 29 Nisan - 2 Mayıs - 2010 - SAU
2.4 A-TÜBİTAK (1002, 3001) DESTEKLİ PROJEDE YÜRÜTÜCÜ OLMAK :
1 Hidayet Hüda KÖSAL (Yürütücü), Mahmut Akyiğit (Araştırmacı), Kemal Eren (Araştırmacı) - Tübitak 1002 Hızlı Destek - Vol.36.900 - DOI : Tamamlandı - Eliptik Kuaterniyon Matris Teorisinin Geliştirilmesi Ve Uygulamaları - 2023
2.4 B-TÜBİTAK (1002, 3001) DESTEKLİ PROJEDE ARAŞTIRMACI OLMAK :
1 m.k.kose - Deneme - 0
9.6-SSCI, SCI-EXP, AHCI, SCOPUS, ESCI DIŞINDAKİ ALAN ENDEKSLERİNDEKİ DERGİLERDE BAŞ EDİTÖRLÜK DIŞINDAKİ DİĞER EDİTÖRLÜKLER :
1 HİDAYET HÜDA KÖSAL; - Advances in Applied Clifford Algebras  - Vol.1 - 2015
10.3-ALANINDA YURTİÇİ KAMU KURUM VE KURULUŞLARINDAN ALINAN BİLİM/SANAT/TASARIM ÖDÜLÜ :
1 Hidayet Hüda KÖSAL - TÜBİTAK, Yurt İçi Doktora Burs - 2211 - TÜBİTAK - Ocak - 2012
MAKALELER
A new image restoration model associated with special elliptic quaternionic least-squares solutions based on LabVIEW
Algebraic techniques for the least squares problems in elliptic complex matrix theory and their applications
A Note on Gershgorin Disks in the Elliptic Plane
Coincidence and Common Fixed Point Theorems via C-Class Functions in Elliptic Valued Metric Spaces
TUBULAR SURFACES WITH MODIFIED ORTHOGONAL FRAME IN EUCLIDEAN 3-SPACE
Numerical Algorithm for Solving General Linear Elliptic Quaternionic Matrix Equations
Coincidence and Common Fixed Point Theorems via ϱ-Class Functions in Elliptic Valued Metric Spaces
Algebraic Techniques for Least Squares Problems in Elliptic Complex Matrix Theory and Their Applications
Evolution of space curves and the special ruled surfaces with modified orthogonal frame
Euler and De Moivre’s Formulas for Fundamental Matrices of Commutative Quaternions
Least-squares solutions of the reduced biquaternion matrix equationAX=B and their applications in colour image restoration
Universal similarity factorization equalities for commutative quaternions and their matrices
Some Equivalence Relations and Results over the Commutative Quaternions and Their Matrices
On the Consimilarity of Split Quaternions and Split Quaternion Matrices
On the Semisimilarity and Consemisimilarity of Split Quaternions
A Note on Matrix Representations of Split Quaternions
Consimilarity of Commutative Quaternion Matrices
Commutative Quaternion Matrices
Fibonacci Generalized Quaternions
Split Fibonacci Quaternions
BİLDİRİLER
Elliptic Quaternion Matrix Theory and Its Applications
A Note On Gershgorin Discs In The Elliptic Plane
Least-Squares Solutions of the Elliptic Quaternion Matrix Equation AX=B
Color Image Restoration by the Elliptic Quaternionic Least Squares Method
Algebraic Techniques for Least Squares Problems in Elliptic Complex Matrix Theory and Applications
Algorithm for Solving the Sylvester s-Conjugate Elliptic Quaternion Matrix Equations
On Generalized Expansive Mappings in the Setting of Elliptic Valued Metric Spaces
An Algorithm for Solutions to the Elliptic Quaternion Matrix Equation AX = B
Common Best Proximity Points in Elliptic Valued B-Metric Spaces
Best Proximity Points for Generalized Alpha-Phi GeraghtyProximal Contraction Mapping in Elliptic Valued Metric Space
Universal Factorization Equalities for Commutative Quaternions and Their Matrices
On Fibonacci Commutative Quaternions
Semisimilarity and Consemisimilarity for matrices over a Commutative Quaternion
On the Semisimilarity and Consemisimilarity of Split Quaternions
On Solutions to the Sylvester s Conjugate EquationsA s X XB C s 1 2 3 Over Elliptic Quaternion Matrices
A Note on Matrix Representation of Split Quaternions
Equivalence Relations on Quaternion Matrices
Consimilarity of Split Quaternion Matrices and a Solution of the Split Quaternion MAtrix Equation X-AXB=C
On Derivatives of Functions over Generalized Cayley-Dickson Algebras
Consimilarity of Commutative Quaternion Matrices
On Solution to the Commutative Quaternion Matrix Equations AX-XB=C, AX-XB=C and AX-XB=C
Hyperbolic Bi-Quaternions
Commutative Quaternion Matrices
Fibonacci Split Quaternions
A Note on Fibonacci Generalized Quaternions
Euler’s Formula and De-Moivre’s Formula for Dual Hyperbolic Quaternions
Euler’s Formula and De Moivre’s Formula for Hyperbolic Quaternions
Categorical Structure of Pash Geometries
KİTAPLAR
Algorithms as a Basis of Modern Applied Mathematics
EDİTÖRLÜK VE HAKEMLİK
Journal of Mathematical Sciences and Modelling (JMSM)(J. Math. Sci. Model.)
Tbilisi Mathematical Journal
Journal of Mathematical Sciences and Modelling
Fundamental Journal of Mathematics and Applications
Fundamental Journal of Mathematics and Applications
ARAŞTIRMA PROJELERİ
Eliptik Kuaterniyon Matris Teorisinin Geliştirilmesi Ve Uygulamaları
Komütatif Kuaterniyonların Matrisleri Üzerine
ÖDÜL
Yayın Teşvik (UBYT)
UZMANLIK ALANLARI
Geometri