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Abstract

In this paper, it is attempted to introduce and investigate new subclasses of Sakaguchi kind of functions related to shell – likes curves connected with Fibonacci numbers. Furthermore, the estimates of first two coefficients of functions in these classes are obtained. Fekete – Szego inequalities for these function classes are also determined.

Results & Lemmas (8)

Each result is auto-extracted from the paper via OCR - the math is shown verbatim and may carry occasional transcription artifacts. Click to expand the full statement.

Theorem 1.3. Theorem 1.3. [5] The function  2 2 2 2 1 1 ~ z z z z p 
Theorem 1.3. [5] The function  2 2 2 2 1 1 ~ z z z z p 
Theorem 2.2. Theorem 2.2. Let f be given by (1) be in the class    z p SLM t ~,,  . Then
Theorem 2.2. Let f be given by (1) be in the class    z p SLM t ~ , ,   . Then
Corollary 2.3. Corollary 2.3. Let f given by (1) be in the class    z p KSL ~ . Then      
Corollary 2.3. Let f given by (1) be in the class    z p KSL ~  . Then      
Corollary 2.4. Corollary 2.4. Let f given by (1) be in the class    z p KSL ~ . Then
Corollary 2.4. Let f given by (1) be in the class    z p KSL ~  . Then
Theorem 3.1. Theorem 3.1. let f given by (1) be in the class    z p SLM t ~,,   and  
Theorem 3.1. let f given by (1) be in the class    z p SLM t ~ , ,   and  
Corollary 3.2. Corollary 3.2. If    z p SLM f t ~,,   , then
Corollary 3.2. If    z p SLM f t ~ , ,    , then
Corollary 3.3. Corollary 3.3. Let f given by (1) be in the class    z p KSL ~  and   
Corollary 3.3. Let f given by (1) be in the class    z p KSL ~  and   
Corollary 3.4. Corollary 3.4. Let f given by (1) be in the class    z p KSL ~  and   . Then we have  
Corollary 3.4. Let f given by (1) be in the class    z p KSL ~  and    . Then we have  

Definitions (3)

Def 1.1. Definition 1.1. The function A f  belongs to the class SL if it satisfies the condition that   z p z
Definition 1.1. The function A f  belongs to the class SL if it satisfies the condition that   z p z
Def 1.2. Definition 1.2. The function A f  belongs to the class KSL of convex shell – like functions if it satisfies the condition that    
Definition 1.2. The function A f  belongs to the class KSL of convex shell – like functions if it satisfies the condition that    
Def 2.1. Definition 2.1. For 1,1 0    t  but
Definition 2.1. For 1 ,1 0    t  but
Function classes studied:

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