Adjoining a constant function to \(n\)-dimensional Chebyshev space
Summary: This paper is concerned with extending a Chebyshev system of \(n\) continuous nonconstant functions into a set of \(n + 1\) functions including a constant function. Necessary and sufficient conditions for the new set to be a Chebyshev system are discussed and some results are obtained.
scientific article; zbMATH DE number 6620482