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6 results on '"Mohammad Rahim Bordbar"'

3. N-subalgebras of BCK=BCI-Algebras which are Induced from Hyperfuzzy Structures

Author

Hashem Bordbar, Young Bae Jun, Mohammad Rahim Bordbar, and Rajab Ali Borzooei

Subjects
Algebra, Group (mathematics), Generalization, General Mathematics, Fuzzy set, Group theory, Mathematics, Brain–computer interface
Abstract

In the paper [J. Ghosh and T.K. Samanta, Hyperfuzzy sets and hyperfuzzy group, Int. J. Advanced Sci Tech. 41 (2012), 27–37], Ghosh and Samanta introduced the concept of hyperfuzzy sets as a generalization of fuzzy sets and interval-valued fuzzy sets and applied it to group theory. The aim of this manuscript is to study N-structures in BCK\BCI-algebras induced from hyperfuzzy structures.

Published
2021
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5. A Generalization of Semidetached Subalgebras in BCK∕BCI-algebras

Author

Mohammad Rahim Bordbar, Young Bae Jun, and Hashem Bordbar

Subjects
Mathematics::Operator Algebras, Mathematical society, Generalization, Computer Science::Information Retrieval, Applied Mathematics, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), 020206 networking & telecommunications, 02 engineering and technology, Computer Science Applications, Human-Computer Interaction, Algebra, Computational Mathematics, Computational Theory and Mathematics, 0202 electrical engineering, electronic engineering, information engineering, Computer Science::General Literature, 020201 artificial intelligence & image processing, Mathematics, Brain–computer interface
Abstract

Generalization of the paper [Y. B. Jun and S. Z. Song, Semidetached subalgebras in [Formula: see text]-algebras, to appear in Bulletin of the Korean Mathematical Society] is discussed. Several conditions for a semidetached structure in [Formula: see text]-algebras to be a semidetached subalgebra are provided. The concepts of ([Formula: see text])-fuzzy subalgebra, [Formula: see text]-left ([Formula: see text]-right) [Formula: see text]-fuzzy subalgebra, ([Formula: see text])-fuzzy subalgebra and ([Formula: see text])-fuzzy subalgebra are introduced, and relative relations and properties are discussed.

Published
2019
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6. Time-dependent wormhole in an inhomogeneous spherically symmetric space time with a cosmological constant

Author

Mohammad Rahim Bordbar, Nematollah Riazi, and Biruni Üniversitesi

Subjects
Physics, Cosmological constant, Einstein's constant, Astronomy and Astrophysics, Cosmology, symbols.namesake, General Relativity and Quantum Cosmology, Classical mechanics, Space and Planetary Science, Symmetric space, symbols, Symmetric tensor, Wormhole, Tensor, Einstein
Abstract

Time-dependent wormhole solutions are found which evolve on inhomogeneous spherically symmetric space time. By using a constraint on energy-momentum tensor, solutions are derived from Einstein's equations with cosmological constant. © 2010 Springer Science+Business Media B.V.

Published
2010

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