Sakin Demi̇r

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20202022

most citedVariational Inequalities For The Differences Of Averages Over Lacunary Sequences

4 citations · 4 across the 11 of their papers we have counts for

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math.CA2021

Variation and oscillation inequalities for operator averages on a complex Hilbert space

Sakin Demir

Let $H$ be a complex Hilbert space and $T : H \to H$ be a contraction. Let $A_{n} f = \frac{1}{n} j = 1 \sum n T^{j} f$ for $f \in H$ . Let $(n_{k})$ be a…

math.CA2021

Unconditional convergence of the differences of Fejér kernels on $L^{2} (R)$

Sakin Demir

Let $K_{n} (x)$ denote the Fejér kernel given by $K_{n} (x) = j = - n \sum n (1 - \frac{∣ j ∣}{n + 1}) e^{- ij x}$ and let $σ_{n} f (x) = (K_{n} * f) (x)$ , where as usual $f * g$ denotes the…

Variation and oscillation inequalities for operator averages on a complex Hilbert space

Unconditional convergence of the differences of Fejér kernels on L2(R)

Unconditional convergence of the differences of Fejér kernels on $L^{2} (R)$