The main purpose of this paper is to consider the t-best simultaneousapproximation in fuzzy normed spaces. We develop the theory of t-bestsimultaneous approximation in quotient spaces. Then, we discuss the relationshipin t-proximinality and t-Chebyshevity of a given space and its quotientspace.

The main purpose of this paper is to find t-best approximations in fuzzy normed spaces. We introduce the notions of t-proximinal sets and F-approximations and prove some interesting theorems. In particular, we investigate the set of all t-best approximations to an element from a set.

We derive results on equivalence of piecewise polynomial approximations a given function in the Sobolev space $${\varvec{H}}{\mathrm{(curl)}}$$ . namely show that global-best approximation -conforming imposing continuity tangential trace can be bounded above and below by Hilbertian sum respective local from elementwise spaces without any inter-element requirement. In other words, tangential-tra...

A process improvement program starts with the recognition of the organization’s needs and business goals, usually based on the main drivers and stimuli identified. From an analysis of the organizations needs and existing stimuli for improvement, the objectives of process improvement are identified and described. The final stage of the preliminary definition of the goals for the improvement prog...