SHSuha Hammad

Suha Hammad

University of Tikrit
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Suha Hammad has a total of 22 co-authors. Here are the top co-authors by number of shared publications:

Latest Publications

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    Third-Order Differential Subordination for Analytic Functions Involving the Lommel Function of the First Kind

    by Suha Hammad, Mohammad El-Ityan, Tariq Al-Hawary, Ibtisam Aldawish, Feras Yousef

    This study investigates third-order differential subordination and its influence on classes of analytic functions associated with the Lommel function of the first kind. By employing a newly defined operator Lwjf(z), we identify and characterize the admissible function classes that satisfy the corresponding third-order differential subordinations. These admissibility conditions enable the derivation of several key results, including a sandwich-type theorem obtained as a direct consequence of the established framework. The findings contribute to a broader understanding of analytic functions governed by higher-order differential constraints and highlight the significant role played by the Lommel function in shaping these geometric properties.

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    Third Order Differential Subordination Results Associated with Tremblay Fractional Derivative Operator for p-Valent Analytic Functions

    by Mohammad El-Ityan, Adriana Cătaş, Suha Hammad, Sheza El-Deeb

    This paper studies a class of p-valent analytic functions in the open unit disk using a modified Tremblay operator based on the Riemann–Liouville fractional integral and derivative. We derive a series representation of the operator, which serves as a useful tool to explore its analytic and geometric properties. New third-order differential subordination results are obtained by defining suitable classes of admissible functions. We provide sufficient conditions to ensure subordination relations with a given dominant function, leading to inclusion results in general complex domains. In addition, several applications are given for specific choices of the target domain, showing how the framework is flexible and able to produce unified results in the theory of differential subordination for multivalent analytic functions.

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    Third-Order Hankel Determinant for a Class of Bi-Univalent Functions Associated with Sine Function

    by Mohammad El-Ityan, Mustafa A. Sabri, Suha Hammad, Basem Frasin, Tariq Al-Hawary, Feras Yousef

    This paper investigates a new subclass of bi-univalent analytic functions defined on the open unit disk in the complex plane, associated with the subordination to 1+sinz. Coefficient bounds are obtained for the initial Taylor–Maclaurin coefficients, with a particular focus on the second- and third-order Hankel determinants. To illustrate the non-emptiness of the proposed class, we consider the function 1+tanhz, which maps the unit disk onto a bean-shaped domain. This function satisfies the required subordination condition and hence serves as an explicit member of the class. A graphical depiction of the image domain is provided to highlight its geometric characteristics. The results obtained in this work confirm that the class under study is non-trivial and possesses rich geometric structure, making it suitable for further development in the theory of geometric function classes and coefficient estimation problems.

    Cited by 11
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    New Subclass of Meromorphic Functions Defined via Mittag–Leffler Function on Hilbert Space

    by Mohammad El-Ityan, Luminita-Ioana Cotîrlă, Tariq Al-Hawary, Suha Hammad, Daniel Breaz, Rafid Buti

    In this paper, a novel class of meromorphic functions associated with the Mittag–Leffler function Eμ,ϑ(z) is introduced using the Hilbert space operator. In the punctured symmetric domain ⋓∗, essential properties of this class are systematically investigated. These properties include coefficient inequalities, growth and distortion bounds, as well as weighted and arithmetic mean estimates. Furthermore, the extreme points and radii of geometric properties such as close-to-convexity, starlikeness, and convexity are analyzed in detail. Additionally, the Hadamard product (or convolution) is explored to demonstrate the algebraic structure and stability of the introduced function class under this operation. Integral mean inequalities are also established to provide further insights into the behavior of these functions within the given domain.

    Cited by 4
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    Fekete–Szeg˝o Inequalities for New Subclasses of Bi-Univalent Functions Defined by S˘al˘agean q-Differential Operator

    by Mohammad Al-Ityan, Ala Amourah, Abdullah Alsoboh, Mohammad Bani Raba’a, Suha Hammad, Nidal Anakira, Tala Sasa

    In this paper, we introduce a new operator based on the S\u{a}l\u{a}gean \( q \)-differential approach to define a new class of analytic functions. Using this operator, we obtain estimates for the first two coefficients in the Taylor series, \( |a_2| \) and \( |a_3| \). A significant part of the study focuses on the Fekete--Szeg\H{o} inequalities for the function classes \( \mathcal{M}_{\sigma,q,\Sigma}^{\zeta,m}(\leftthreetimes, \kappa, \alpha) \) and \( \mathcal{M}_{\sigma,q,\Sigma}^{\zeta,m}(\gamma,\leftthreetimes, \kappa) \). Through our analysis, we derive several important results, including some special cases that we present in this paper as Corollaries.

    Cited by 1
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    Fekete-Szeg¨o Inequalities for a New Class of Bi-Univalent Functions Defined via the Mittag-Leffler Function

    by Mohammad Al-Ityan, Ala Amourah, Abdullah Alsoboh, Nidal Anakira, Mohammad Bani Raba'A, Suha Hammad, Tala Sasa

    In this paper, we introduce a new subclass of analytic functions denoted byMp,qΣ (∝, β), where we use the subordination relationship between the Mittag-Leffler function and the (p, q)-derivative of F(z) to define this new class. By employing the Taylor-Maclaurin series expansion, we focus on estimating the bounds for the coefficients |a2| and |a3|. Moreover, we establish Fekete Szeg¨o inequalities for functions within this class.

    Cited by 8
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    New subclass of bi-univalent functions involving the Wright function associated with the Jung-Kim-Srivastav operator

    by Mohammad El-Ityan, Ala Amourah, Suha Hammad, Rafid Buti, Abdullah Alsoboh

    In this paper, we introduce a novel operator formed by the convolution of the Jung-Kim-Srivastav operator and the Wright function. This operator is used to construct classes of analytic functions within the open unit disk. The primary objective is to establish precise estimates for the basic coefficients |a2| and |a3| in the Taylor-Maclaurin series for functions belonging to this class. Furthermore, we present new results related to this study.

    Cited by 7
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    A new subclass of bi-univalent functions of complex order defined by the symmetric q-derivative and subordination

    by Mohammad El-Ityan, Tariq Al-Hawary, Suha Hammad, Basem Frasin

    In this paper, we introduce a new subclass of bi-univalent functions of complex order, using the symmetric q-derivative with subordination principles. We obtain upper bounds for the coefficients |c2|, |c3| and estimate an upper bound for the Fekete–Szegő problem within this new subclass ˜MΣq(t,ϱ,ζ).

    Cited by 7
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    A Class of Meromorphic Multivalent Functions with Positive Coefficients Defined by Struve Function

    by Suha J. Hamaad, Abdul Rahman S. Juma, Hassan H. Ebrahim

    The main goal of this work is to obtain new geometric properties for meromorphic multivalent functions in the punctured disk 〖 (UD)〗^*=UD\{0}={z:z∈C and 0< |z|<1}, so we presented a new class〖 J〗_(c,p)^(ζ,a) (β,δ,б) by using Hadamard product. In this paper we obtained many important properties such as coefficient estimates, radius of convexity, distortion theorem, convex combination and closure theorem. In addition, we derived the integral transforms and Hadamard product for functions belonging to the class 〖 J〗_(c,p)^(ζ,a) (β,δ,б).

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    Third-Order Differential Subordination for Generalized Struve Function Associated with Meromorphic Functions

    by Suha J. Hammad, Abdul Rahman S. Juma, Hassan H. Ebrahim

    سابقاً تناولت العديد من الاعمال دراسة التبعية التفاضلية من الدرجة الاولى وبعد فترة وجيزة تناولت دراسات اخرى التبعية التفاضلية من الدرجة الثانية في قرص الوحدة . مؤخراً تم تقديم التبعية التفاضلية من الدرجة الثالثة من قبل بوانسامي واخرون في عام 1992 و انتونيو ميلر عام 2011 . تبحث هذة الورقة في صنف اوسع بكثير من متراجحات التبعية التفاضلية من الدرجة الثالثة . عرف المؤلفون المعايير الخلصة بصنف من الاوبريترات المسموح بها وهذا يعني ضمان وجود التبعية التفاضلية من الدرجة الثالثة. الدوال الميرومورفية في D هي دوال تحليلية في المجال D بأستثناء الرواسب اذا كانت فأن الدالة ميرومورفية وهي دوال يمكن تمثيلها كحاصل قسمة دالتين. دالة ستورف لها تطبيقات في قضايا الموجات السطحية و موجات الماء والديناميكا الهوائية غير المستقرة و الاتجاه البصري ونظرية عدم الاستقرار المقاوم ظهرت دالة ستروف مؤخرا في عدد من انظمة الجسيمات . فكرة التبعية التفاضلية في لغة هي تعميم للمتباينات في لغة R, وقد بدأت في عام 1981 من خلال اعمال ميلر و موكانو و ريد. في هذا المقال يتم معاينة الفئات المناسبة من الدوال المقبولة ويتم انشاء خصائص التبعية التفاضلية من...

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