**
Volume
15 Number 4 (2019)**

**
Contents**

**
Abelian - Tauberian Theorem for Laplace Transform of Hyperfunctions**

**pp 323–334**

**Deepthi A.N. and Mangalambal.N.R**

**
Boundedness of solutions in a chemotaxis-haptotaxis model with logistic
source**

**pp 335–347**

**Long Lei**

**
A Note on Hausdorff Domination**

**pp 349–364**

**Annie Sabitha Paul and Raji Pilakkat
Paul**

**
Modelling and Analysis of SEIR with Delay Differential Equation**

**pp 365–382**

**Wilson Ewesit Eyaran, Shaibu Osman and
Mary Wainaina**

**
Stochastic Query Covering Using Greedy Muticover Algorithm**

**pp. 383-397**

**Padma Priya G and Hemalatha M**

**
Efficient Constraint-Based Sequential Pattern Mining (SPM) Algorithm**

**pp. 399-410**

**Priyadharshini S.P and Hemalatha M**

**
Fixed Point Results in S**_{b}**-Metric Spaces via ()-
GeneralizedWeakly Contractive Maps**

**pp 411–428**

**M. V. R. Kameswari, K. Sujatha and D.
M. K Kiran**

**Optimization of aWeighted Average: Cases of AR(1) and MA(1) Processes**

**pp. 429-452**

**Mahmoud Mourad, Nadine Ghandour, Khalil
Tawbe and Firas Mourad**

**
On a New Subclass of Multivalent Functions Defined by using Generalized
Raducanu-Orhan Differential Operator**

**pp. 453-467**

**Bitrus Sambo, Ayuba Sanda and Oladejo
Semiu Oladipupo**

**Vertex Polynomial of Graphs with New Results**

**pp. 469-475**

**A. M. Anto and P. Paul Hawkins**

**Summation Theorems Involving Appell’s Double Hypergeometric Function of
Third Kind**

**pp. 477-487**

**M. I. Qureshi, M. S. Baboo and Ashfaq
Ahmad**

**An Optimal Three-Step Iterative Method Free From Derivative for Solving
Nonlinear Equations**

**pp. 489-498**

**Nurul Khoiromi, M. Imran and
Syamsudhuha**

**Dominator and Total Dominator Coloring on Square Chessboard**

**pp. 499-504**

**K.S.P. Sowndarya and Y. Lakshmi Naidu**

**On Fuzzy Z - Ideals in Z - Algebras**

**pp. 505-516**

**S.Sowmiya and P.Jeyalakshmi**

**
Derivative Free Three-Step Iterative Method with Divided Difference
Estimates to Solve Nonlinear Equations**

**pp. 517-526**

**Vera Alvionita Harahap , M. Imran and
Syamsudhuha**