Abstract
Some estimates for the degree of approximation by matrix means of hexagonal Fourier series of $$\mathbf {H}$$ -periodic continuous functions are obtained. The degree of approximation of $$\mathbf {H}$$ -periodic Holder continuous functions by these means is investigated in uniform and Holder norms and some results about Riesz and Norlund means of hexagonal Fourier series are concluded.
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