Derek K. Thomas

On the second Hankel determinant of areally mean 𝑝-valent functions

J. W. Noonan, Derek K. Thomas · Transactions of the American Mathematical Society · 1976 · 200 citations · Full text

Spectral Theory, Dirichlet Form, Engineering +5

TOEPLITZ DETERMINANTS WHOSE ELEMENTS ARE THE COEFFICIENTS OF ANALYTIC AND UNIVALENT FUNCTIONS

Md Firoz Ali, Derek K. Thomas · Bulletin of the Australian Mathematical Society · 2018 · 70 citations · Full text

Univalent Functions, Function Theory, Taylor Coefficients +3

Figs as a food source of migrating Garden Warblers in southern Portugal

Derek K. Thomas · Bird Study · 1979 · 45 citations

Food Source, Migratory Fat, Foraging +7

Hankel determinants for starlike and convex functions associated with sigmoid functions

Amina Riaz, Mohsan Raza, Derek K. Thomas · Forum Mathematicum · 2021 · 35 citations

Third Hankel Determinants, Engineering, Generalized Function +9

RETRACTED ARTICLE: Toeplitz Matrices Whose Elements are the Coefficients of Starlike and Close-to-Convex Functions

Derek K. Thomas, Suzeini Abdul Halim · Bulletin of the Malaysian Mathematical Sciences Society · 2016 · 32 citations

Mathematical Programming, Engineering, Generalized Function +8