document: L/sub p / boundedness of -LRB- C , 1 -RRB- means of orthonormal expansions for general exponential weights Let I be a finite or infinite interval , and let W : I to -LRB- 0 , infinity -RRB- . Assume that W/sup 2 / is a weight , so that we may define orthonormal polynomials corresponding to W/sup 2 / . For f : R to R , let s/sub m / -LSB- f -RSB- denote the mth partial sum of the orthonormal expansion of f with respect to these polynomials . We investigate boundedness in weighted L/sub p / spaces of the -LRB- C , 1 -RRB- means 1/n / sub m = 1 / Sigma / sup n/s/sub m / -LSB- f -RSB- . The class of weights W/sup 2 / considered includes even and noneven exponential weights
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