Best Co-approximation and Best Simultaneous Co-approximation in Fuzzy Normed Spaces

The main purpose of this paper is to consider the t-best co-approximation and t-best simultaneous co-approximation in fuzzy normed spaces. We develop the theory of t-best co-approximation and t-best simultaneous co-approximation in quotient spaces. This new concept is employed us to improve various characterisations of t-co-proximinal and t-co-Chebyshev sets.

• J. Kavikumar
• N. S. Manian
• M.B.K. Moorthy

• Fuzzy best co-approximation
• fuzzy quotient spaces
• proximinality
• Chebyshevity
• best simultaneous co-approximation.

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