Derek K. Thomas

Generating author description...

All published works

Action	Title	Year	Authors
+	Third Hankel determinant for starlike and convex functions associated with the exponential function	2024	Mohsan Raza Amina RiazRiaz Derek K. Thomas Paweł Zaprawa
+	Coefficient Estimates for Starlike and Convex Functions Related to Sigmoid Functions	2023	Mohsan Raza Derek K. Thomas Asma Riaz
+	Coefficient estimates for starlike and convex functions related to sigmoid functions	2023	Mohsan Raza Derek K. Thomas Asma Riaz
+	THE THIRD HANKEL DETERMINANT FOR INVERSE COEFFICIENTS OF CONVEX FUNCTIONS	2023	Mohsan Raza Amina Riaz Derek K. Thomas
+ PDF Chat	The sharp bound of the third Hankel determinant for Convex functions of order -1/2	2023	B. Kowalczyk A. Lecko Derek K. Thomas
+	The sharp bound of the third Hankel determinant for starlike functions	2022	Bogumiła Kowalczyk Adam Lecko Derek K. Thomas
+ PDF Chat	Hankel, Toeplitz, and Hermitian-Toeplitz Determinants for Certain Close-to-convex Functions	2022	Vasudevarao Allu Adam Lecko Derek K. Thomas
+ PDF Chat	On the difference of inverse coefficients of convex functions	2022	Young Jae Sim Derek K. Thomas
+	Coefficient invariances of Convex functions	2022	Derek K. Thomas
+	Hankel determinants for starlike and convex functions associated with sigmoid functions	2021	Amina Riaz Mohsan Raza Derek K. Thomas
+ PDF Chat	The second Hankel determinant for starlike and convex functions of order alpha	2021	Young Jae Sim Derek K. Thomas Paweł Zaprawa
+	A NOTE ON SPIRALLIKE FUNCTIONS	2021	Young Jae Sim Derek K. Thomas
+ PDF Chat	The second Hankel determinant for strongly convex and Ozaki close-to-convex functions	2021	Young Jae Sim Adam Lecko Derek K. Thomas
+	Some differential inequalities and Carathéodory functions	2021	Mamoru Nunokawa Janusz Sokół Derek K. Thomas
+	On the coefficients of B1(αα) Bazilevič functions	2021	Khadija Bano Mohsin Raza Derek K. Thomas
+ PDF Chat	On the difference of coefficients of univalent functions	2021	Milutin Obradović Derek K. Thomas Nikola Tuneski
+ PDF Chat	On the Difference of Inverse Coefficients of Univalent Functions	2020	Young Jae Sim Derek K. Thomas
+	On the coefficients of $$\mathbf {{\mathcal {B}}_1}(\varvec{\alpha })$$ Bazilevič functions	2020	Khadija Bano Mohsan Raza Derek K. Thomas
+ PDF Chat	On the Difference of Coefficients of Starlike and Convex Functions	2020	Young Jae Sim Derek K. Thomas
+ PDF Chat	The Fifth Coefficient of Bazilevič Functions	2020	Oh Sang Kwon Derek K. Thomas Young Jae Sim
+	ON THE DIFFERENCE OF COEFFICIENTS OF OZAKI CLOSE-TO-CONVEX FUNCTIONS	2020	Young Jae Sim Derek K. Thomas
+	On the difference of coefficients of univalent functions	2020	Milutin Obradović Derek K. Thomas Nikola Tuneski
+ PDF Chat	ON A CLOSE-TO-CONVEX ANALOGUE OF CERTAIN STARLIKE FUNCTIONS	2020	Vasudevarao Allu Janusz Sokół Derek K. Thomas
+	Relation Extraction with Self-determined Graph Convolutional Network	2020	Sunil Kumar Sahu Derek K. Thomas Billy Chiu Neha Sengupta Mohammady Mahdy
+	On the difference of coefficients of univalent functions	2020	Milutin Obradović Derek K. Thomas Nikola Tuneski
+ PDF Chat	On the Difference of Coefficients of Bazilevič Functions	2019	Nak Eun Cho Young Jae Sim Derek K. Thomas
+	ON OZAKI CLOSE-TO-CONVEX FUNCTIONS	2018	Vasudevarao Allu Derek K. Thomas Nikola Tuneski
+	Univalent Functions: A Primer	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	5. Starlike and Convex Functions of Order α	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	6. Strongly Starlike and Convex Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	9. Close-to-Convex Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	7. Alpha-Convex Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	3. Fundamental Lemmas	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	Univalent Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	11. B<sub>1</sub>(α) Bazilevič Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu
+	The second Hankel determinant for alpha-convex functions	2018	Janusz Sokół Derek K. Thomas
+ PDF Chat	Retraction Note to: Toeplitz Matrices Whose Elements are the Coefficients of Starlike and Close-to-Convex Functions	2018	Derek K. Thomas Suzeini Abdul Halim
+	TOEPLITZ DETERMINANTS WHOSE ELEMENTS ARE THE COEFFICIENTS OF ANALYTIC AND UNIVALENT FUNCTIONS	2018	Md Firoz Ali Derek K. Thomas Vasudevarao Allu
+ PDF Chat	On Ozaki's condition for p-valency	2018	Mamoru Nunokawa Janusz Sokół Derek K. Thomas
+ PDF Chat	Some unifying inequalities for starlike functions in a half-plane and a sector	2018	Derek K. Thomas Nikola Tuneski
+ PDF Chat	Coefficients of strongly alpha-convex and alpha-logarithmicaly convex functions	2017	Derek K. Thomas
+	Toeplitz determinants whose elements are the coefficients of univalent functions	2017	Firoz Ali Derek K. Thomas Vasudevarao Allu
+	Hierarchical B-spline complexes of discrete differential forms	2017	John A. Evans Michael A. Scott Kendrick M. Shepherd Derek K. Thomas Rafael Vázquez
+	INVARIANCE OF THE COEFFICIENTS OF STRONGLY CONVEX FUNCTIONS	2016	Derek K. Thomas Sarika Verma
+	RETRACTED ARTICLE: Toeplitz Matrices Whose Elements are the Coefficients of Starlike and Close-to-Convex Functions	2016	Derek K. Thomas Suzeini Abdul Halim
+	Logarithmic coefficients of close-to-convex functions	2016	Firoz Ali Derek K. Thomas Vasudevarao Allu
+	The second Hankel determinant of functions convex in one direction	2016	Marjono Marjono Derek K. Thomas
+	On the second Hankel determinant of some analytic functions	2015	Derek K. Thomas Sarika Verma
+ PDF Chat	On the logarithmic coefficients of close to convex functions	2015	Derek K. Thomas
+	The Second Hankel Determinant for Starlike Functions of Order Alpha	2015	Derek K. Thomas
+	A note on the powers of Bazilevic functions	2015	Marjono Marjono Derek K. Thomas
+	ON THE FEKETE-SZEGO THEOREM FOR CLOSE-TO-CONVEX FUNCTIONS	1998	Maslina Darus Derek K. Thomas
+ PDF Chat	On convex and starlike functions in a sector	1996	M. Nunokawa Derek K. Thomas
+	ON A PROBLEM OF MILLER AND MOCANU	1993	Mamoru Nunokawa Derek K. Thomas
+	ON THE BERNARDI INTEGRAL OPERATOR	1992	M. Nunokawa Derek K. Thomas
+ PDF Chat	On the starlikeness of the Bernardi integral operator	1991	Rosihan M. Ali Derek K. Thomas
+	Corrigendum to "The Derivative of Bazilevic Functions"	1990	R. R. London Derek K. Thomas
+ PDF Chat	Corrigendum to: “The derivative of Bazilevič functions” [Proc. Amer. Math. Soc. 104 (1988), no. 1, 235–238; MR0958074 (89k:30011)]	1990	R. R. London Derek K. Thomas
+ PDF Chat	The derivative of Bazilevič functions	1988	R. R. London Derek K. Thomas
+ PDF Chat	On functions whose derivative has positive real part	1986	Derek K. Thomas
+	Correction to ‘The Area Theorem for Starlike Functions’	1985	Finbarr Holland Derek K. Thomas
+ PDF Chat	On a subclass of Bazilevič functions	1985	Derek K. Thomas
+	Growth results for a subclass of Bazilevič functions	1985	Rabha Md. El-Ashwah Derek K. Thomas
+	ON A SUBCLASS OF BAZILEVI( FUNCTIONS	1985	Derek K. Thomas
+ PDF Chat	An asymptotic formula for an integral in starlike function theory	1976	R. R. London Derek K. Thomas
+ PDF Chat	On the second Hankel determinant of areally mean 𝑝-valent functions	1976	J. W. Noonan Derek K. Thomas
+ PDF Chat	On the coefficients of meromorphic univalent functions	1975	Derek K. Thomas
+	On Successive Coefficients of Functions of Bounded Boundary Rotation	1972	J. W. Noonan Derek K. Thomas
+ PDF Chat	On the order of a starlike function	1971	Finbarr Holland Derek K. Thomas
+	An Area Theorem for Starlike Functions	1970	R. R. London Derek K. Thomas
+	On an extremal problem in univalent functions	1969	Derek K. Thomas
+	The Area Theorem for Starlike Functions	1969	Finbarr Holland Derek K. Thomas
+	A Note on Starlike Functions	1968	Derek K. Thomas
+ PDF Chat	On Bazilevič functions	1968	Derek K. Thomas
+	On Starlike and Close-to-Convex Univalent Functions	1967	Derek K. Thomas

Common Coauthors

Coauthor	Papers Together
Vasudevarao Allu	14
Nikola Tuneski	13
Young Jae Sim	9
Mohsan Raza	6
R. R. London	5
Janusz Sokół	4
Mamoru Nunokawa	3
Adam Lecko	3
Finbarr Holland	3
Milutin Obradović	3
J. W. Noonan	2
Marjono Marjono	2
Firoz Ali	2
Paweł Zaprawa	2
M. Nunokawa	2
Sarika Verma	2
Suzeini Abdul Halim	2
Amina Riaz	2
Asma Riaz	2
Mohsin Raza	1
Sunil Kumar Sahu	1
Rafael Vázquez	1
Oh Sang Kwon	1
Rosihan M. Ali	1
Mohammady Mahdy	1
Michael A. Scott	1
Maslina Darus	1
Amina RiazRiaz	1
Billy Chiu	1
Rabha Md. El-Ashwah	1
Md Firoz Ali	1
Khadija Bano	1
Nak Eun Cho	1
Neha Sengupta	1
Kendrick M. Shepherd	1
John A. Evans	1
B. Kowalczyk	1
Khadija Bano	1
Bogumiła Kowalczyk	1
A. Lecko	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	On Successive Coefficients of Univalent Functions	1963	W. K. Hayman	11
+	On the Hankel determinants of univalent functions	1967	Christian Pommerenke	9
+ PDF Chat	Early coefficients of the inverse of a regular convex function	1982	Richard J. Libera Eligiusz J. Złotkiewicz	8
+	On the Coefficients and Hankel Determinants of Univalent Functions	1966	Ch. Pommerenke	8
+	On the Second Hankel Determinant of Mean Univalent Functions	1968	W. K. Hayman	7
+ PDF Chat	A proof of the Bieberbach conjecture	1985	Louis de Branges	7
+	The Bounds of Some Determinants for Starlike Functions of Order Alpha	2017	N. E. Cho Bogumiła Kowalczyk Oh Sang Kwon Adam Lecko Young Jae Sim	7
+ PDF Chat	Close-to-convex schlicht functions.	1952	Wilfred Kaplan	6
+ PDF Chat	Successive Coefficients of Starlike Functions	1978	Y. J. Leung	6
+	INVARIANCE OF THE COEFFICIENTS OF STRONGLY CONVEX FUNCTIONS	2016	Derek K. Thomas Sarika Verma	6
+ PDF Chat	On Bazilevič functions	1973	Ram Singh	6
+	Univalent Functions	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu	6
+ PDF Chat	Second Hankel determinant for close-to-convex functions	2017	Dorina Răducanu Paweł Zaprawa	5
+	SHARP BOUNDS OF SOME COEFFICIENT FUNCTIONALS OVER THE CLASS OF FUNCTIONS CONVEX IN THE DIRECTION OF THE IMAGINARY AXIS	2019	Nak Eun Cho Bogumiła Kowalczyk Adam Lecko	5
+ PDF Chat	Coefficient bounds for the inverse of a function with derivative in 𝒫	1983	Richard J. Libera Eligiusz J. Złotkiewicz	5
+	THE SHARP BOUND FOR THE HANKEL DETERMINANT OF THE THIRD KIND FOR CONVEX FUNCTIONS	2018	Bogumiła Kowalczyk Adam Lecko Young Jae Sim	5
+ PDF Chat	On the second Hankel determinant of areally mean 𝑝-valent functions	1976	J. W. Noonan Derek K. Thomas	5
+	Coefficients of the Inverse of Strongly Starlike Functions	2003	Rosihan M. Ali Mohammad Mehdi Rashidi	5
+	On Starlike and Convex Functions	1962	Ch. Pommerenke	4
+ PDF Chat	Coefficient Estimates for a Class of Star-Like Functions	1970	David A. Brannan J. Clunie William E. Kirwan	4
+ PDF Chat	Every Matrix is a Product of Toeplitz Matrices	2015	Ke Ye Lek‐Heng Lim	4
+ PDF Chat	The Bound of the Hankel Determinant of the Third Kind for Starlike Functions	2018	Oh Sang Kwon Adam Lecko Young Jae Sim	4
+	On the fourth and fifth coefficients of strongly starlike functions	1996	Rosihan M. Ali Vikramaditya Singh	4
+ PDF Chat	A coefficient inequality for certain classes of analytic functions	1969	F. R. Keogh E. P. Merkes	4
+ PDF Chat	The Sharp Bound of the Hankel Determinant of the Third Kind for Starlike Functions of Order 1 / 2	2018	Adam Lecko Young Jae Sim Barbara Śmiarowska	4
+	On the Fourth Coefficient of Functions in the Carathéodory Class	2017	Oh Sang Kwon Adam Lecko Young Jae Sim	4
+	On Functions with Positive Real Part	1961	W. K. Hayman	4
+ PDF Chat	On Bazilevič schlicht functions	1962	J. Zamorski	4
+ PDF Chat	On the Fekete-Szego Problem for Close-to-Convex Functions	1987	Wolfram Koepf	4
+ PDF Chat	On the Difference of Inverse Coefficients of Univalent Functions	2020	Young Jae Sim Derek K. Thomas	4
+ PDF Chat	Applications of Modified Sigmoid Functions to a Class of Starlike Functions	2020	Muhammad Ghaffar Khan Bakhtiar Ahmad G. Murugusundaramoorthy Ronnason Chinram Wali Khan Mashwani	3
+ PDF Chat	On Bazilevič functions	1968	Derek K. Thomas	3
+	Hankel Determinant for starlike and convex functions.	2007	Suzeini Binti Abd Halim	3
+ PDF Chat	The second Hankel determinant for strongly convex and Ozaki close-to-convex functions	2021	Young Jae Sim Adam Lecko Derek K. Thomas	3
+ PDF Chat	A Note on Successive Coefficients of Convex Functions	2016	Ming Li Toshiyuki Sugawa	3
+ PDF Chat	The sharp bounds of the second and third Hankel determinants for the class 𝓢𝓛<sup>*</sup>	2020	Shagun Banga S. Sivaprasad Kumar	3
+ PDF Chat	Bounds for the second Hankel determinant of certain univalent functions	2013	See Keong Lee V. Ravichandran Shamani Supramaniam	3
+ PDF Chat	Coefficients of univalent functions	1977	Peter Duren	3
+ PDF Chat	THIRD ORDER HANKEL DETERMINANT FOR CERTAIN UNIVALENT FUNCTIONS	2015	Deepak Bansal Sudhananda Maharana Jugal K. Prajapat	3
+ PDF Chat	On the Difference of Coefficients of Starlike and Convex Functions	2020	Young Jae Sim Derek K. Thomas	3
+	Hermitian–Toeplitz and Hankel determinants for certain starlike functions	2021	Nak Eun Cho Sushil Kumar Virendra Kumar	3
+ PDF Chat	A general approach to the Fekete-Szegö problem	2007	Jae Ho Choi Yong Chan Kim Toshiyuki Sugawa	3
+	Generalized Zalcman Conjecture for Starlike and Typically Real Functions	1999	William Ma	3
+	Univalent Functions: A Primer	2018	Derek K. Thomas Nikola Tuneski Vasudevarao Allu	3
+	On Starlike and Close-to-Convex Univalent Functions	1967	Derek K. Thomas	3
+	ON OZAKI CLOSE-TO-CONVEX FUNCTIONS	2018	Vasudevarao Allu Derek K. Thomas Nikola Tuneski	3
+	Bound for the fifth coefficient of certain starlike functions	2015	V. Ravichandran Shelly Verma	3
+	Functions which Map the Interior of the Unit Circle Upon Simple Regions	1915	James Alexander	3
+	On the Zalcman conjecture for starlike and typically real functions	1986	Johnny E. Brown Anna Tsao	3
+	The second Hankel determinant for alpha-convex functions	2018	Janusz Sokół Derek K. Thomas	3