A class of first order neutral delay differential equations are investigated, and sufficient condition is derived for all solutions to be oscillatory. This result solves an open problem in the literature.
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
Ahmed, Fatima N.
Ahmad, Rokiah Rozita
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
Ahmad, Rokiah Rozita
Din, Ummul Khair Salma
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
Din, Ummul Khair Salma
Noorani, Mohd Salmi Md
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
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Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Hainan Normal Univ, Sch Math & Stat, Haikou 571158, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Guo, Songbai
Shen, Youjian
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Hainan Normal Univ, Sch Math & Stat, Haikou 571158, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Shen, Youjian
Shi, Binbin
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Shandong Agr Univ, Dept Math & Informat Sci, Tai An 271018, Shandong, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China