Prof. Dr. HAYRULLAH AYIK | AVESİS

Akademik Veri Yönetim Sistemi

Yayınlar & Eserler

Makaleler 35

1. On monoids of monotone partial transformations of a finite chain whose domainand ranges are intervals

AYIK H., Fernandand V. H., KORKMAZ E.

Algebra and Discrete Mathematics , cilt.40, sa.1, 2025 (ESCI, Scopus)

2. On the semigroup of all injective orientation-preserving and order-decreasing partial transformations on a finite chain

AYIK H., AYIK G., DAĞDEVİREN A.

Communications in Algebra , 2025 (SCI-Expanded)

3. Combinatorial results for zero-divisors regarding right zero elements of order-preserving transformations

KORKMAZ E., AYIK H.

Asian-European Journal of Mathematics , 2025 (ESCI, Scopus)

4. Ranks of certain semigroups of transformations with idempotent complement whose restrictions belong to a given semigroup

BUGAY L., Sönmez R., AYIK H.

Turkish Journal of Mathematics , cilt.48, sa.3, ss.414-422, 2024 (SCI-Expanded)

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5. Combinatorial results for semigroups of orientation-preserving and order-decreasing transformations

DAĞDEVİREN A., AYIK G., AYIK H.

Semigroup Forum , 2024 (SCI-Expanded)

6. A presentation for the semigroup of order-preserving full contraction mappings of a finite chain

TOKER K., AYIK H.

Communications in Algebra , 2024 (SCI-Expanded)

7. Isolated Subsemigroups of Order-Preserving and Decreasing Transformation Semigroups

KORKMAZ E., AYIK H.

BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY , cilt.45, sa.2, ss.663-675, 2022 (SCI-Expanded)

8. Ranks of nilpotent subsemigroups of order-preserving and decreasing transformation semigroups

KORKMAZ E., AYIK H.

TURKISH JOURNAL OF MATHEMATICS , cilt.45, sa.4, ss.1626-1634, 2021 (SCI-Expanded)

9. Combinatorial Results for Semigroups of Order-Preserving and A-Decreasing Finite Transformations

BUGAY L., YAĞCI M., AYIK H.

BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY , cilt.42, sa.3, ss.921-932, 2019 (SCI-Expanded)

10. Relative ranks of some partial transformation semigroups

Yigit E., AYIK G., AYIK H.

TURKISH JOURNAL OF MATHEMATICS , cilt.43, sa.5, ss.2218-2225, 2019 (SCI-Expanded)

11. The ranks of certain semigroups of partial isometries

Bugay L., YAĞCI M., AYIK H.

SEMIGROUP FORUM , cilt.97, sa.2, ss.214-222, 2018 (SCI-Expanded)

12. On the rank of transformation semigroup T-(n,T-m)

Toker K., AYIK H.

TURKISH JOURNAL OF MATHEMATICS , cilt.42, sa.4, ss.1970-1977, 2018 (SCI-Expanded)

13. Generating sets of certain finite subsemigroups of monotone partial bijections

Bugay L., AYIK H.

TURKISH JOURNAL OF MATHEMATICS , cilt.42, sa.5, ss.2270-2278, 2018 (SCI-Expanded)

14. Minimal relative generating sets of some partial transformation semigroups

YİĞİT E., AYIK G., AYIK H.

Communications in Algebra , cilt.45, sa.3, ss.1239-1245, 2017 (SCI-Expanded)

15. Minimal relative generating sets of some partial transformation semigroups

YİĞİT E., AYIK G., AYIK H.

COMMUNICATIONS IN ALGEBRA , cilt.45, sa.3, ss.1239-1245, 2016 (SCI-Expanded)

16. GENERATING SETS OF FINITE TRANSFORMATION SEMIGROUPS PK (n, r) AND K (n, r)

AYIK H., BUGAY L.

COMMUNICATIONS IN ALGEBRA , cilt.43, sa.2, ss.412-422, 2015 (SCI-Expanded)

17. On the second homology of the Schutzenberger product of monoids

YAĞCI M., BUGAY L., AYIK H.

TURKISH JOURNAL OF MATHEMATICS , cilt.39, sa.5, ss.763-772, 2015 (SCI-Expanded)

18. GENERATING SETS OF STRICTLY ORDER-PRESERVING TRANSFORMATION SEMIGROUPS ON A FINITE SET

AYIK H., BUGAY L.

BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY , cilt.51, sa.4, ss.1055-1062, 2014 (SCI-Expanded)

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19. Generating Sets in Some Semigroups of Order-Preserving Transformations on a Finite Set

AYIK H., BUGAY L.

SOUTHEAST ASIAN BULLETIN OF MATHEMATICS , cilt.38, ss.163-172, 2014 (ESCI)

20. Generating sets of finite singular transformation semigroups

AYIK G., AYIK H., BUGAY L., KELEKCI O.

SEMIGROUP FORUM , cilt.86, sa.1, ss.59-66, 2013 (SCI-Expanded)

21. Rank properties of the semigroup of singular transformations on a finite set

AYIK G., AYIK H., Uenlue Y., HOWIE J. M.

COMMUNICATIONS IN ALGEBRA , cilt.36, sa.7, ss.2581-2587, 2008 (SCI-Expanded)

22. On semigroup presentations and adian graphs

AYIK G., AYIK H., UNLU Y.

DISCRETE MATHEMATICS , cilt.308, sa.11, ss.2288-2291, 2008 (SCI-Expanded)

23. On the efficiency of the direct products of monogenic monoids

Ayik H., CAMPBELL C. M., O'CONNOR J. J.

ALGEBRA COLLOQUIUM , cilt.14, sa.2, ss.279-284, 2007 (SCI-Expanded)

24. Presentations and word problems for strong semilattices of semigroups

AYIK G., AYIK H., UNLU Y.

Algebra and Discrete Mathematics , cilt.4, ss.28-35, 2005 (ESCI)

25. On factorisations and generators in transformation semigroups

AYIK G., Ayik H., HOWIE J.

SEMIGROUP FORUM , cilt.70, sa.2, ss.225-237, 2005 (SCI-Expanded)

26. Minimal presentations and embedding into inefficient semigroups

Ayik H., MINISKER M., VATANSEVER B.

ALGEBRA COLLOQUIUM , cilt.12, sa.1, ss.59-65, 2005 (SCI-Expanded)

27. The structure of elements in finite full transformation semigroups

AYIK G., Ayik H., UNLU Y., HOWIE J.

BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY , cilt.71, sa.1, ss.69-74, 2005 (SCI-Expanded)

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28. On finiteness conditions for Rees matrix semigroups

CZECHOSLOVAK MATHEMATICAL JOURNAL , cilt.55, sa.2, ss.455-463, 2005 (SCI-Expanded)

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29. Presentations for S and S/p from a given presentation for p

AYIK G., Ayik H., UNLU Y.

SEMIGROUP FORUM , cilt.70, sa.1, ss.146-149, 2005 (SCI-Expanded)

30. On semigroup presentations and efficiency

Ayik H., KUYUCU F., VATANSEVER B.

SEMIGROUP FORUM , cilt.65, sa.3, ss.329-335, 2002 (SCI-Expanded)

31. The Semigroup Efficiency of Groups and Monoids

AYIK H., Ruskuc N., Campbell C. M., O'Connor J. J.

Proceedings of the Royal Irish Academy A , cilt.100, ss.171-176, 2000 (Hakemli Dergi)

32. On the Efficiency of Finite Simple Semigroups

AYIK H., CAMPBELL C. M., O'Connor J., RUSKUC N.

TURKISH JOURNAL OF MATHEMATICS , cilt.24, ss.129-146, 2000 (Scopus)

33. Minimal presentations and efficiency of semigroups

Ayik H., CAMPBELL C., O'CONNOR J., RUSKUC N.

SEMIGROUP FORUM , cilt.60, sa.2, ss.231-242, 2000 (SCI-Expanded)

34. On the efficiency of wreath products of groups

AYIK H., CAMPBELL C., OCONNOR J., RUSKUC N.

Groups—Korea '98 , ss.39-51, 2000 (Hakemli Dergi)

35. Generators and relations of Rees matrix semigroups

Ayik H., RUSKUC N.

PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY , cilt.42, ss.481-495, 1999 (SCI-Expanded)

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Hakemli Bilimsel Toplantılarda Yayımlanmış Bildiriler 13

1. Bazı Sonlu Sıra-Koruyan Dönüşüm Yarıgruplarının Doğuray Kümeleri

BUGAY L., AYIK H.

XXVI. Ulusal Matematik Sempozyumu, Diyarbakır, Türkiye, 4 - 07 Eylül 2013, ss.12, (Özet Bildiri)

2. Sonlu Tekil Dönüşüm Yarıgruplarının Doğuray Kümeleri

BUGAY L., AYIK G., AYIK H., KELEKCI O.

XXV. Ulusal Matematik Sempozyumu, Niğde, Türkiye, 5 - 07 Eylül 2012, ss.12, (Özet Bildiri)

3. (m,r)-rank of finite full transformation semigroups

AYIK G., AYIK H., HOWIE J. M., UNLU Y.

Antalya Algebra Days VIII, Antalya, Türkiye, 17 - 21 Mayıs 2006, ss.52, (Özet Bildiri)

4. On factorisations and generators in transformation semigroups

AYIK G., AYIK H., HOWIE J. M.

Antalya Algebra Days VII, Antalya, Türkiye, 18 - 22 Ağustos 2005, ss.1, (Tam Metin Bildiri)

5. On factorisations and generators in transformation semigroups

AYIK G., AYIK H., HOWIE J. M.

Antalya Algebra Days VII, Antalya, Türkiye, 18 - 22 Mayıs 2005, ss.45, (Özet Bildiri)

6. The Structure of Elements in Finite Full Transformation Semigroups

AYIK H., AYIK G., HOWIE J. M., UNLU Y.

Antalya Algebra Days VII, Antalya, Türkiye, 18 - 22 Mayıs 2005, ss.32, (Özet Bildiri)

7. Bazı Yarıgrup Ailelerinin Sonlu Takdimedilebilirliği

AYIK G., AYIK H., UNLU Y.

XVII. Ulusal Matematik Sempozyumu, Bolu, Türkiye, 23 - 26 Ağustos 2004, ss.15, (Özet Bildiri)

8. On Semigroup Presentations

Antalya Algebra Days III,, Antalya, Türkiye, 28 Mayıs - 01 Haziran 2003, ss.15, (Özet Bildiri)

9. The Semigroup Efficiency of Direct Products of Groups

Campbell C. M., AYIK H., O'Connor J. J., Ruskuc N.

Proc. Internat. Conf. Semigroups, Praga, Portekiz, 18 - 23 Haziran 1999, ss.19-25, (Tam Metin Bildiri)

10. Generators and Relations of Rees Matrix Semigroups

AYIK H., Ruskuc N.

International Conference On Algorithmic Problems In Groups And Semigroups, Nebraska, Amerika Birleşik Devletleri, 11 - 15 Mayıs 1999, ss.10, (Özet Bildiri)

11. On the Efficiency of Wreath Products of Groups

Campbell C. M., AYIK H., O'Connor J. J., Ruskuc N.

Groups Korea 98, Pusan, Güney Kore, 10 - 16 Ağustos 1998, ss.39-51, (Tam Metin Bildiri)

12. The Semigroup Efficiency of Groups

CAMPBELL C. M., AYIK H., O'Connor J., RUSKUC N.

International Conference On Algorithmic Problems In Groups And Semigroups, Nebraska, Amerika Birleşik Devletleri, 10 - 16 Ağustos 1998, ss.45, (Özet Bildiri)

13. Efficiency of Semigroups

Conference On Semigroups And Applications, Edinburg, Birleşik Krallık, 2 - 09 Temmuz 1997, ss.68, (Özet Bildiri)

Kitaplar 1

1. Presentations and Efficiency of Semigroups

University of St Anderws, UK, 1998

Metrikler

Yayın

49

Yayın (WoS)

32

Yayın (Scopus)

32

Atıf (WoS)

86

H-İndeks (WoS)

6

Atıf (Scopus)

88

H-İndeks (Scopus)

6

Atıf (TrDizin)

1

H-İndeks (TrDizin)

1

Atıf (Diğer Toplam)

1

Proje

5

Tez Danışmanlığı

8

Açık Erişim

5