Abstract
In the above-mentioned work by S. Basu (see ibid., vol.78, p.614-626, 1990), one of the main focal points is the robustness of positive property for a k-variate interval rational function having complex coefficients (hereafter the property is referred to as the PC property). It is concluded that the PC property of the specific 16(2/sup k/)/sup 2/ extreme members of the set can imply the PC property of the set. In this comment, it is proven that the PC property of a k-variate complex interval rational function can be assured by the PC property of its certain 16(2/sup k/) extreme members, which are a proper subset of those 16(2/sup k/)/sup 2/ extreme members defined in the above-mentioned work.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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