Farid Bencherif

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Letting T n (resp. U n) be the n-th Chebyshev polynomials of the first (resp. second) kind, we prove that the sequences X k T n−k k and X k U n−k k for n − 2 n/2 ≤ k ≤ n − n/2 are two basis of the Q-vectorial space E n [X] formed by the polynomials of Q [X] having the same parity as n and of degree ≤ n. Also T n and U n admit remarkableness integer(More)
Quality Function Deployment (QFD) is an effective tool to enhance customer satisfaction, develop the product quality and enhance competitive advantages in the market. In developing new products and projects, we receive the needs from the customer, pass it around a corporate communication circle, and eventually return it to the customer in the form of the(More)
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