Derek K. Thomas

1.0k total citations
52 papers, 662 citations indexed

About

Derek K. Thomas is a scholar working on Geometry and Topology, Applied Mathematics and Polymers and Plastics. According to data from OpenAlex, Derek K. Thomas has authored 52 papers receiving a total of 662 indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Geometry and Topology, 32 papers in Applied Mathematics and 9 papers in Polymers and Plastics. Recurrent topics in Derek K. Thomas's work include Analytic and geometric function theory (44 papers), Holomorphic and Operator Theory (20 papers) and Meromorphic and Entire Functions (9 papers). Derek K. Thomas is often cited by papers focused on Analytic and geometric function theory (44 papers), Holomorphic and Operator Theory (20 papers) and Meromorphic and Entire Functions (9 papers). Derek K. Thomas collaborates with scholars based in United Kingdom, South Korea and Poland. Derek K. Thomas's co-authors include Vasudevarao Allu, Young Jae Sim, Adam Lecko, Nikola Tuneski, Mohsan Raza, Maslina Darus, Bogumiła Kowalczyk, Janusz Sokół, Paweł Zaprawa and Finbarr Holland and has published in prestigious journals such as Transactions of the American Mathematical Society, Proceedings of the American Mathematical Society and Proceedings of the London Mathematical Society.

In The Last Decade

Derek K. Thomas

44 papers receiving 557 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Derek K. Thomas United Kingdom 15 578 449 123 56 35 52 662
Zhi-Gang Wang China 12 323 0.6× 235 0.5× 68 0.6× 20 0.4× 4 0.1× 51 374
Virendra Kumar India 8 339 0.6× 249 0.6× 99 0.8× 23 0.4× 38 365
S. Sivaprasad Kumar India 9 480 0.8× 350 0.8× 127 1.0× 43 0.8× 48 506
Halit Orhan Türkiye 15 721 1.2× 522 1.2× 193 1.6× 52 0.9× 73 761
Deepak Bansal India 8 381 0.7× 273 0.6× 88 0.7× 40 0.7× 30 397
Nihat Yağmur Türkiye 10 418 0.7× 289 0.6× 118 1.0× 18 0.3× 18 444
N. E. Cho South Korea 4 328 0.6× 231 0.5× 89 0.7× 22 0.4× 9 334
Jacek Dziok Poland 15 1.1k 1.9× 764 1.7× 280 2.3× 62 1.1× 79 1.1k
Herb Silverman United States 17 1.3k 2.3× 948 2.1× 266 2.2× 62 1.1× 59 1.4k
S. Sivasubramanian India 11 585 1.0× 353 0.8× 164 1.3× 69 1.2× 62 597

Countries citing papers authored by Derek K. Thomas

Since Specialization
Citations

This map shows the geographic impact of Derek K. Thomas's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Derek K. Thomas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Derek K. Thomas more than expected).

Fields of papers citing papers by Derek K. Thomas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Derek K. Thomas. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Derek K. Thomas. The network helps show where Derek K. Thomas may publish in the future.

Co-authorship network of co-authors of Derek K. Thomas

This figure shows the co-authorship network connecting the top 25 collaborators of Derek K. Thomas. A scholar is included among the top collaborators of Derek K. Thomas based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Derek K. Thomas. Derek K. Thomas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Raza, Mohsan, et al.. (2024). Third Hankel determinant for starlike and convex functions associated with the exponential function. Boletín de la Sociedad Matemática Mexicana. 31(1).
2.
Thomas, Derek K., et al.. (2023). The sharp bound of the third Hankel determinant for Convex functions of order -1/2. Journal of Mathematical Inequalities. 191–204. 8 indexed citations
3.
Raza, Mohsan, et al.. (2023). THE THIRD HANKEL DETERMINANT FOR INVERSE COEFFICIENTS OF CONVEX FUNCTIONS. Bulletin of the Australian Mathematical Society. 109(1). 94–100. 6 indexed citations
4.
Raza, Mohsan, et al.. (2023). Coefficient estimates for starlike and convex functions related to sigmoid functions. Ukrains’kyi Matematychnyi Zhurnal. 75(5). 683–697. 1 indexed citations
5.
Sim, Young Jae, Adam Lecko, & Derek K. Thomas. (2021). The second Hankel determinant for strongly convex and Ozaki close-to-convex functions. Annali di Matematica Pura ed Applicata (1923 -). 200(6). 2515–2533. 27 indexed citations
6.
Sim, Young Jae & Derek K. Thomas. (2020). On the Difference of Inverse Coefficients of Univalent Functions. Symmetry. 12(12). 2040–2040. 11 indexed citations
7.
Thomas, Derek K., et al.. (2018). TOEPLITZ DETERMINANTS WHOSE ELEMENTS ARE THE COEFFICIENTS OF ANALYTIC AND UNIVALENT FUNCTIONS. Bulletin of the Australian Mathematical Society. 97(2). 253–264. 49 indexed citations
8.
Nunokawa, Mamoru, Janusz Sokół, & Derek K. Thomas. (2018). On Ozaki's condition for p-valency. Comptes Rendus Mathématique. 356(4). 382–386.
9.
Thomas, Derek K., Nikola Tuneski, & Vasudevarao Allu. (2018). Univalent Functions. 37 indexed citations
10.
Thomas, Derek K., Nikola Tuneski, & Vasudevarao Allu. (2018). Univalent Functions: A Primer. CERN Document Server (European Organization for Nuclear Research). 20 indexed citations
11.
Thomas, Derek K., et al.. (2016). INVARIANCE OF THE COEFFICIENTS OF STRONGLY CONVEX FUNCTIONS. Bulletin of the Australian Mathematical Society. 95(3). 436–445. 14 indexed citations
12.
Thomas, Derek K.. (2016). Placemaking. 18 indexed citations
13.
Thomas, Derek K., et al.. (2016). The second Hankel determinant of functions convex in one direction. International Journal of Mathematical Analysis. 10. 423–428. 12 indexed citations
14.
Thomas, Derek K., et al.. (2015). A note on the powers of Bazilevic functions. International Journal of Mathematical Analysis. 9. 2061–2067. 3 indexed citations
15.
Darus, Maslina & Derek K. Thomas. (1998). ON THE FEKETE-SZEGO THEOREM FOR CLOSE-TO-CONVEX FUNCTIONS. Mathematica japonica. 47(1). 125–132. 20 indexed citations
16.
Thomas, Derek K., et al.. (1991). A Subclass Of Close-To-Convex Functions. Publications de l Institut Mathematique. 61–66. 18 indexed citations
17.
Thomas, Derek K., et al.. (1985). Growth results for a subclass of Bazilevič functions. International Journal of Mathematics and Mathematical Sciences. 8(4). 785–793. 1 indexed citations
18.
Thomas, Derek K.. (1985). ON A SUBCLASS OF BAZILEVI( FUNCTIONS. 4 indexed citations
19.
Thomas, Derek K.. (1979). Figs as a food source of migrating Garden Warblers in southern Portugal. Bird Study. 26(3). 187–191. 38 indexed citations
20.
Thomas, Derek K.. (1967). On Starlike and Close-to-Convex Univalent Functions. Journal of the London Mathematical Society. s1-42(1). 427–435. 23 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Zhi-Gang Wang Breakdown of academic impact, for papers by Virendra Kumar Breakdown of academic impact, for papers by S. Sivaprasad Kumar Breakdown of academic impact, for papers by Halit Orhan Breakdown of academic impact, for papers by Deepak Bansal Breakdown of academic impact, for papers by Nihat Yağmur Breakdown of academic impact, for papers by N. E. Cho Breakdown of academic impact, for papers by Jacek Dziok Breakdown of academic impact, for papers by Herb Silverman Breakdown of academic impact, for papers by S. Sivasubramanian
Rankless by CCL
2026