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Sobhy A. El-Sheikh

Sobhy Ahmed Ali El-Sheikh

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affiliation: Ain Shams University, Department of Mathematic, Cairo, Eygpt

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2020 – today

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2023
[j13]
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Sobhy Ahmed Ali El-Sheikh, Shehab El-deen Ali Kandil, Salama Hussien Ali Shalil:
Increasing and Decreasing Soft Rough Set Approximations. Int. J. Fuzzy Log. Intell. Syst. 23(4): 425-435 (2023)
2020
[j12]
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Ali Kandil, Sobhy A. El-Sheikh, Mona Hosny, Mahmoud Raafat:
Mappings and Connectedness on Hesitant Fuzzy Soft Multispaces. Adv. Fuzzy Syst. 2020: 8894850:1-8894850:15 (2020)
[j11]
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Ali Kandil, Sobhy A. El-Sheikh, Mona Hosny, Mahmoud Raafat:
Hesitant fuzzy soft multisets and their applications in decision-making problems. Soft Comput. 24(6): 4223-4232 (2020)
[j10]
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Ali Kandil, Sobhy A. El-Sheikh, Mona Hosny, Mahmoud Raafat:
Bi-ideal approximation spaces and their applications. Soft Comput. 24(17): 12989-13001 (2020)

2010 – 2019

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2017
[j9]
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Sobhy A. El-Sheikh, Mona Hosny, Mahmoud Raafat:
Comment on "Rough Multisets and Information Multisystems". Adv. Decis. Sci. 2017: 3436073:1-3436073:3 (2017)
[j8]
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Ali Kandil, Osama A. E. Tantawy, Sobhy A. El-Sheikh, Shawqi A. Hazza:
Some types of pairwise soft sets and the associated soft topologies. J. Intell. Fuzzy Syst. 32(1): 1007-1018 (2017)
2016
[j7]
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Amr Zakaria, Sunil Jacob John, Sobhy A. El-Sheikh:
Generalized rough multiset via multiset ideals. J. Intell. Fuzzy Syst. 30(3): 1791-1802 (2016)
2015
[j6]
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Osama A. E. Tantawy, Sobhy A. El-Sheikh, Rasha Naser Majeed:
A note on "separation axioms in fuzzy bitopological spaces". J. Intell. Fuzzy Syst. 28(5): 2243-2244 (2015)
2014
[j5]
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A. M. Kozae, Sobhy A. El-Sheikh, R. Mareay:
Covering-based rough fuzzy sets and binary relation. J. Intell. Fuzzy Syst. 26(2): 1031-1038 (2014)

2000 – 2009

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2001
[j4]
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Sobhy A. El-Sheikh:
A new approach to fuzzy bitopological spaces. Inf. Sci. 137(1-4): 283-301 (2001)
2000
[j3]
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Sobhy A. El-Sheikh:
Compactness in fuzzy (fuzzy supra) topological spaces. Fuzzy Sets Syst. 116(3): 301-310 (2000)

1990 – 1999

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1999
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Ali Kandil, A. A. Nouh, Sobhy A. El-Sheikh:
Strong and ultra separation axioms of fuzzy bitopological spaces. Fuzzy Sets Syst. 105(3): 459-467 (1999)
1995
[j1]
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Ali Kandil, A. A. Nouh, Sobhy A. El-Sheikh:
On fuzzy bitopological spaces. Fuzzy Sets Syst. 74(3): 353-363 (1995)

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