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Academician

CEM KOŞAR

Doçent

Gaziantep Üniversitesi Nizip Eğitim Fakültesi Matematik Ve Fen Bilimleri Eğitimi Bölümü

Research topics OpenAlex
  1. Ana Dal Fen Bilimleri ve Matematik Temel Alanı
  2. Yan Dal Matematik
Keywords YÖKSİS
Articles 11 YÖKSİS 11 · OpenAlex 0 Total citations 617 h-index 2 · OpenAlex OpenAlex coverage %73 matched 8 / 11 Q1 articles 0 Scopus · WoS Q1 3 Co-authors 5 3 Turkish institutions

Citation impact

Citation counts of the articles matched in OpenAlex, citing publications from Crossref and the Stanford/Elsevier list. Sources are shown separately and never added up.

OpenAlex YÖKSİS articles matched in OpenAlex: 8 + YÖKSİS · co-author record: 2
h-index 2 Percentile in Türkiye: 28 #646 of 1,114 at their university by h-index
i10-index
2
Total citations
617
Top 78% in Türkiye
Per article
61.7
FWCI
4.31
1.00 = world average
World top 1%
1
World top 10%
3

Most cited articles

  1. Alien species in the Mediterranean Sea by 2010 A contribution to the application of European Union s Marine Strategy Framework Directive MSFD Part I Spatial distribution 2010 world top 1% 596 citations
  2. On Asymptotically Deferred Statistical Equivalence of Sequences 2017 16 citations
  3. Uniform Convergence of Extremal Polynomials When Domains have Corners and Special Cusps on the Boundary 2011 2 citations
How is this computed?

h-index and citations are computed from the citation counts of this academic’s YÖKSİS articles matched in OpenAlex (not Google Scholar, WoS or Scopus). Unmatched articles are not included. 2 articles (612 citations) tagged with this academic’s YÖK author id in co-authors’ YÖKSİS records count only towards citations, h-index and i10; article counts, percentiles and rankings use their own YÖKSİS list.

Citing publications Crossref 1 publications citing 8 DOI-bearing articles · 1 Türkiye-affiliated
  • 2020 1
  1. Approximate properties of the p-Bieberbach polynomials in regions with simultaneously exterior and interior zero angles TR F.G. Abdullayev et al. · Quaestiones Mathematicae · 2020 · cites 2 articles of this academic
Where does this list come from?

Extracted from the reference lists in Crossref’s public March 2026 data file; 20.3% of the file has been processed, so the list may be incomplete. Crossref citations are never added to or compared with the OpenAlex citation counts; the two sources have different coverage.

Field ranking

Position in the main-field, side-field and keyword cohorts by YÖKSİS article score; each card opens that ranking.

YÖKSİS ?
Keyword rankings 1

Works 11

YÖKSİS and OpenAlex records: index distribution, journals published in, a filterable article list and the other output types.

Indexes and citation percentiles

?
TR Index 1 articles
OpenAlex citation percentile
Top 1%0
Top 10%2
Avg · n 8 %50.5
Other counts

Scopus (SJR)

  • YÖKSİS rows 8

WoS (JCR)

  • YÖKSİS rows 8

Articles

Articles with YÖKSİS and OpenAlex source split; narrow by quartile or TR Index.

11articles

Journals with publications

10 journals

Narrow down

Scopus (SJR)
Q10 Q24 Q32 Q42
WoS (JCR)
Q13 Q21 Q32 Q42
TR Index
1articles

Article list

  1. 2026 Construction of the spectral expansion for singular β-Sturm-Liouville operators with certain applications Demonstratio Mathematica DOI 10.1515/dema-2025-0304 YÖKSİS SJR Q2 JCR Q1 OpenAlex top 10% OpenAlex 98.8%
  2. 2026 Eigenfunction Expansion and Parseval Identity of β-Dirac Operators on the Whole Line Mathematics DOI 10.3390/math14183351 YÖKSİS SJR Q2 JCR Q1 OpenAlex top 10% OpenAlex 91.2%
  3. 2026 Spectrum of the Non-self-adjoint and Non-homogeneous Sturm-Liouville Operators with a Singular Potential International Journal of Pure and Applied Sciences DOI 10.29132/ijpas.1908033 YÖKSİS TR Index OpenAlex 72.5%
  4. 2019 Simultaneous approximation of conformal mappings on smooth domains Filomat DOI 10.2298/FIL1901281K YÖKSİS SJR Q2 JCR Q2 OpenAlex 19.4%
  5. 2019 Simultaneous Statistical Approximation of Analytic Functions in Annulus by k-Positive Linear Operators JOURNAL OF MATHEMATICAL ANALYSIS DOI http://www.ilirias.com/jma/repository/docs/JMA10-2-4.pdf YÖKSİS SJR Q4 JCR Q4
  6. 2019 Approximation of Conformal Mappings via Bieberbach Polynomials inside Regions with Cusps BEU Journal of Science YÖKSİS OpenAlex 25.8%
  7. 2017 On Asymptotically Deferred Statistical Equivalence of Sequences Filomat DOI 10.2298/FIL 1716139K YÖKSİS SJR Q3 JCR Q3
  8. 2017 Simultaneous Approximation by Generalized Bieberbach Polynomials Journal of Inequalities and Special Functions DOI http://www.ilirias.com/jiasf/vol_8_issue_2.html YÖKSİS SJR Q4 JCR Q4
  9. 2011 Convergence of the p-Bieberbach polynomials in regions with zero angles Proceedings of the Estonian Academy of Sciences DOI http://www.kirj.ee/proceedings/ YÖKSİS SJR Q2 JCR Q3 OpenAlex 23.4%
  10. 2011 Uniform Convergence of Extremal Polynomials When Domains have Corners and Special Cusps on the Boundary Advances in Pure Mathematics DOI 10.4236/apm.2011.16056 YÖKSİS OpenAlex 61.4%
  11. 2010 Uniform Convergence of some Extremal Polynomials in Domain with Corners on the Boundary Journal of Inequalities and Applications DOI Doi: 10.1155/2010/716176 YÖKSİS SJR Q3 JCR Q1 OpenAlex 11.8%

Projects 7 See all (7) →

  1. 2024 Researchers' Night for Citizens & Researchers' Meeting for Science and Art Centers/ Vatandaşlar için Araştırmacılar Gecesi & Bilim Sanat Merkezleri için Araştırmacılar Buluşması H2020 · Tamamlandı 2024-02-12 – 2024-12-12
  2. 2021 Sustainable Environment and Climate Change International Science Festival Project-SECC-SCIFEST Associated Event to the European Researchers' Night ( H2020-MSCA-NIGHT-2020bis) Sürdürülebilir Çevre ve İklim Değişikliği Uluslararası Bilim Festivali H2020 · Tamamlandı 2021-03-01 – 2021-12-15
  3. 2019 4. Ulusarası Mersin Bilim Şenliği TÜBİTAK PROJESİ · Tamamlandı 2019-04-17 – 2019-12-17
  4. 2018 3. Uluslararası Mersin Bilim Şenliği GAZİANTEP ÜNİVERSİTESİ TÜBİTAK PROJESİ · Tamamlandı 2018-06-10 – 2019-01-30
  5. 2017 Gaziantep Bilim Şenliği Diğer (Ulusal) · Tamamlandı 2017-10-26 – 2017-10-28

Books 2

  1. 2026 Kalkülüs-1 Akademisyen Yayınevi ISBN 978-625-362-044-8 Kitap Bölümü · Ders Kitabı
  2. 2023 Eleştirel Matematik Eğitimi -Seçme Makaleler Vizetek ISBN 978-625-8499-81-0 Kitap Bölümü · Bilimsel Kitap

Proceedings 10 See all (10) →

  1. — Convergence of Bieberbach Polynomials in Special Domains IFSCOM-E-2024
  2. 2010 Uniform Convergence of the Bieberbach Polynomials in Regions with Zero Angles International Conference Mathematical Analysis, Differential Equations and Their Applications
  3. 2016 On Asymptotically Deferred Statistical Equivalence of Sequences ICRES2016
  4. 2009 Uniform Convergence of p Bieberbach Polynomials in Regions With Interior Zero Angles Abstracts of International Conference on Mathematics and Mechanics Devoted to the 50-th Anniversary of the Institute of Mathematics and Mechanics of NAS of Azerbaijan
  5. 2010 Köşe Noktalarına Sahip Bölgede Bazı Ekstremal Polinomların Düzgün Yakınsaklığı 5. Ankara Matematik Günleri TOBB Ekonomi ve Teknoloji Üniversitesi Matematik Bölümü

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Collaboration network

From the author lists of YÖKSİS publication records. Duplicate records of a work count once; institutions are co-authors’ current YÖKSİS affiliations.

Co-authors
5
With an akaturk profile
4
Turkish institutions
3
Co-authored works
%82

Academic co-authors 4

  1. MEHMET KÜÇÜKASLAN Profesör · Mersin Üniversitesi 5
  2. NİDA PALAMUT KOŞAR Doçent · Gaziantep Üniversitesi same university 4
  3. FAHREDDİN ABDULLAYEV Profesör · Uşak Üniversitesi 3
  4. ÖZGE AKÇAY Doçent · Munzur Üniversitesi 1

National collaboration 3 institutions

Within own university4 joint works · Gaziantep Üniversitesi

  1. Mersin Üniversitesi 5 works · 1 academics
  2. Uşak Üniversitesi 3 works · 1 academics
  3. Munzur Üniversitesi 1 works · 1 academics

Other co-authors (incl. international) 1

MİKAİL ET

Authors without an akaturk profile (international researchers, retired or former academics, students, clinicians) are grouped by name spelling; short forms such as “Gulluce M.” join the single full name they match.