Before revision: A nondecreasing positive definite function satisfying all conditions of class () other than being strictly increasing can be upper and lower bounded by class () as follows: Thus, to proceed with the appropriate analysis, it suffices to bound the function of interest with continuous nonincreasing positive definite functions.
After revision: functionsA nondecreasing positive definite function satisfying all conditions of class () other than being strictly increasing can be upper and lower bounded by class () as follows: Thus, to proceed with the appropriate analysis, it suffices to bound the function of interest with continuous nonincreasing positive definite functions.