Results 11 to 20 of about 5,950,409 (217)

The Generalized Janowski Starlike and Close-to-Starlike Log-Harmonic Mappings

International Journal of Mathematics and Mathematical Sciences, 2011
Motivated by the success of the Janowski starlike function, we consider here closely related functions for log-harmonic mappings of the form 𝑓(𝑧)=𝑧ℎ(𝑧)𝑔(𝑧) defined on the open unit disc 𝑈.
Maisarah Haji Mohd, Maslina Darus
doaj   +2 more sources

Quantitative Analysis of Polymers by MALDI‐TOF Mass Spectrometry: Correlation Between Signal Intensity and Arm Number. [PDF]

Journal of Mass Spectrometry, Volume 61, Issue 1, January 2026.
ABSTRACT The signal intensities of linear and star‐shaped poly(L‐lactides) (PLA) and poly (ethylene oxides) (PEO) were compared to determine the influence of the number of arms on the ionization in matrix‐assisted laser desorption/ionization time‐of‐flight (MALDI‐TOF) mass spectrometry. In this study, a variety of blends were prepared and investigated,
Mete‐Sungur Dalgic, Sourabh Kumar, Steffen M. Weidner   +2 more
wiley   +2 more sources

New class of symmetric starlike functions subordinate to the generating function of Gregory coefficients. [PDF]

PLoS ONE
Function theory research has long struggled with the challenge of deriving sharp estimates for the coefficients of analytic and univalent functions.
Mohammad Faisal Khan, Mohammed Abaoud, Naeem Ahmad, Muqrin A Almuqrin   +3 more
doaj   +2 more sources

Relations of Harmonic Starlike Function Subclasses with Mittag–Leffler Function

Axioms
In this study, the connection between certain subfamilies of harmonic univalent functions is established by utilizing a convolution operator involving the Mittag–Leffler function.
Naci Taşar, Fethiye Müge Sakar, Seher Melike Aydoğan, Georgia Irina Oros   +3 more
doaj   +2 more sources

Starlike and Convex Properties for Hypergeometric Functions [PDF]

International Journal of Mathematics and Mathematical Sciences, 2008
The purpose of the present paper is to give some characterizations for a (Gaussian) hypergeometric function to be in various subclasses of starlike and convex functions. We also consider an integral operator related to the hypergeometric function.
Oh Sang Kwon, Nak Eun Cho
doaj   +2 more sources

Label‐Free Molecular Characterization of Protein Aggregates in Differentiated Astrocytes [PDF]

Advanced Science, Volume 13, Issue 16, 18 March 2026.
Mid‐infrared photothermal microscopy enables label‐free structural, molecular, and functional imaging of protein aggregates in astrocyte cells. The processes of astrocytes differentiated on a nanomaterial interface are characterized by α‐helical signatures combined with enhanced interfacial thermal resistance properties, while the cell soma of non ...
Panagis D. Samolis, Chiara Lazzarini, Rahmetullah Durgun, Barbara Barile, Giorgia Conte, Tamara Posati, Marco Caprini, Grazia Paola Nicchia, Valentina Benfenati, Michelle Y. Sander   +9 more
wiley   +2 more sources

A Two-Parameter Subclass of q-Starlike Functions Associated With 1−sinz/cosz

Journal of Function Spaces
Using the real parameters λ and τ with −1 ...
Nehad Ali Shah, Ahmad Alkhalaf, Usman Afzal, Mohammad Safi Ullah   +3 more
doaj   +2 more sources

Sharp coefficient bounds for a class of symmetric starlike functions involving the balloon shape domain [PDF]

Heliyon
Recent research has extensively explored classes of starlike and convex functions across various domains. This study introduces a novel class of symmetric starlike functions with respect to symmetric points and associated with the balloon shape domain ...
Bilal Khan, Jianhua Gong, Muhammad Ghaffar Khan, Fairouz Tchier   +3 more
doaj   +2 more sources

Some new applications of the fractional integral and four-parameter Mittag-Leffler function. [PDF]

PLoS ONE
The article reveals new applications of the four-parameter Mittag-Leffler function (MLF) in geometric function theory (GFT), using fractional calculus notions.
Ahmad A Abubaker, Khaled Matarneh, Suha B Al-Shaikh, Mohammad Faisal Khan   +3 more
doaj   +2 more sources

The Fekete-Szegö Problem for p-Valently Janowski Starlike and Convex Functions [PDF]

International Journal of Mathematics and Mathematical Sciences, 2011
For p-valently Janowski starlike and convex functions defined by applying subordination for the generalized Janowski function, the sharp upper bounds of a functional |ap+2−μa2p+1| related to the Fekete-Szegö problem are given.
Toshio Hayami, Shigeyoshi Owa
doaj   +2 more sources