[1] United Arab Emirates Univ, Dept Math Sci, Abu Dhabi 15551, U Arab Emirates
[2] Int Islamic Univ Malaysia, Dept Computat & Theoret Sci, Fac Sci, Kuantan 25710, Pahang, Malaysia
[3] Univ Teknol Malaysia, Dept Math Sci, Johor Baharu 81310, Johor, Malaysia