Found 94 Documents (Results 1–94)
Stable Gabor phase retrieval in Gaussian shift-invariant spaces via biorthogonality. (English) Zbl 1534.94012
Correction to: “Wiener algebras and trigonometric series in a coordinated fashion”. (English) Zbl 1519.42008
Approximation of wave packets on the real line. (English) Zbl 1530.41025
Reviewer: Martin D. Buhmann (Gießen)
Compactly-supported isotropic covariances on spheres obtained from matrix-valued covariances in Euclidean spaces. (English) Zbl 07735969
MSC:
42A82
Fourier interpolation with zeros of zeta and \(L\)-functions. (English) Zbl 1528.11076
Reviewer: Devendra Kumar (Al-Baha)
Worst-case recovery guarantees for least squares approximation using random samples. (English) Zbl 1484.41004
Reviewer: Alexander Ulanovskii (Stavanger)
Wiener algebras and trigonometric series in a coordinated fashion. (English) Zbl 1477.42003
Constr. Approx. 54, No. 2, 185-206 (2021); correction ibid. 58, No. 1, 251 (2023).
Rhodonea curves as sampling trajectories for spectral interpolation on the unit disk. (English) Zbl 1462.41002
Reviewer: Martin D. Buhmann (Gießen)
On a uniqueness theorem of E. B. Vul. (English) Zbl 1467.41004
Reviewer: Alexei Lukashov (Saratov)
Sampling almost periodic and related functions. (English) Zbl 1464.43002
Reviewer: Bolis Basit (Clayton)
Cesàro means of subsequences of partial sums of trigonometric Fourier series. (English) Zbl 1431.42005
Reviewer: Şebnem Yıldız (Kırşehir)
The Stolarsky principle and energy optimization on the sphere. (English) Zbl 1426.11075
Reviewer: Volker Ziegler (Salzburg)
Remez-type and Nikol’skii-type inequalities: general relations and the hyperbolic cross polynomials. (English) Zbl 1381.41015
Reviewer: Martin D. Buhmann (Gießen)
Strictly positive definite kernels on the torus. (English) Zbl 1388.42007
Reviewer: Giorgi Oniani (Kutaisi)
On sharp constants in Bernstein-Nikolskii inequalities. (English) Zbl 1370.41023
Reviewer: Yuri A. Farkov (Moscow)
Chebyshev-type quadratures for doubling weights. (English) Zbl 1364.65060
Reviewer: Manfred Tasche (Rostock)
On summation of nonharmonic Fourier series. (English) Zbl 1342.42003
Reviewer: Włodzimierz Łenski (Poznań)
Approximation of mixed order Sobolev functions on the \(d\)-torus: asymptotics, preasymptotics, and \(d\)-dependence. (English) Zbl 1485.47025
Extremal functions with vanishing condition. (English) Zbl 1329.41025
Reviewer: Peter Massopust (München)
On the critical lengths of cycloidal spaces. (English) Zbl 1315.41001
Reviewer: Radu Păltănea (Braşov)
Multipliers of Hardy spaces associated with generalized Hermite expansions. (English) Zbl 1316.42026
Reviewer: Zhihua Zhang (Beijing)
Probabilistic and average widths of Sobolev spaces on compact two-point homogeneous spaces equipped with a Gaussian measure. (English) Zbl 1310.41023
Reviewer: Yuri A. Farkov (Moscow)
Basic polynomial inequalities on intervals and circular arcs. (English) Zbl 1318.41009
Reviewer: Yuri A. Farkov (Moscow)
On the convergence of a weak greedy algorithm for the multivariate Haar basis. (English) Zbl 1308.41033
Reviewer: Stefan Cobzaş (Cluj-Napoca)
Special moduli of continuity and the constant in the Jackson-Stechkin theorem. (English) Zbl 1282.41003
Reviewer: Yuri A. Farkov (Moskva)
Bandlimited approximations to the truncated Gaussian and applications. (English) Zbl 1280.41018
Reviewer: Alexei Lukashov (Istanbul)
A sharp Remez inequality for trigonometric polynomials. (English) Zbl 1280.41011
Reviewer: Alexei Lukashov (Istanbul)
Bernstein’s inequality for algebraic polynomials on circular arcs. (English) Zbl 1267.42001
Reviewer: Yuri A. Farkov (Moskva)
Harmonic analysis associated with the one-dimensional Dunkl transform. (English) Zbl 1269.42018
Reviewer: Alexandr L. Brodskij (Severodonetsk)
\(\ell_{1}\)-summability of \(d\)-dimensional Fourier transforms. (English) Zbl 1234.42004
Reviewer: George Stoica (Saint John)
Trigonometric approximation of \(\mathrm{SO}(N)\) loops. (English) Zbl 1206.41013
Reviewer: Francisco Pérez Acosta (La Laguna)
Noncommutative approximation: inverse-closed subalgebras and off-diagonal decay of matrices. (English) Zbl 1210.41010
Reviewer: T. D. Narang (Amritsar)
Pairs of lattice paths and positive trigonometric sums. (English) Zbl 1203.42001
Reviewer: Stamatis Koumandos (Nicosia)
On the exact constant in the Jackson-Stechkin inequality for the uniform metric. (English) Zbl 1181.41017
Reviewer: D. K. Ugulawa (Tbilisi)
Invariance theorems in approximation theory and their applications. (English) Zbl 1153.41007
Reviewer: J. P. Norback
Cesàro summability and Marchaud inequality. (English) Zbl 1119.26005
Reviewer: Jozef Bobok (Praha)
Positive Gegenbauer polynomial sums and applications to starlike functions. (English) Zbl 1099.30006
Transplantation theorems for ultraspherical polynomials in \(\operatorname{Re}H^{1}\) and BMO. (English) Zbl 1097.42019
Greedy-type approximation in Banach spaces and applications. (English) Zbl 1070.41018
Reviewer: Saulius Norvidas (Vilnius)
A new characterization of weighted Peetre \(K\)-functionals. (English) Zbl 1072.41014
Reviewer: Jorge Bustamante González (Puebla)
Subspaces with equal closure. (English) Zbl 1134.41337
Critical length for design purposes and extended Chebyshev spaces. (English) Zbl 1061.41004
Reviewer: Daniel Wulbert (La Jolla)
On the \(q\)-convolution on the line. (English) Zbl 1022.33008
Reviewer: Stamatis Koumandos (Nicosia)
Nonnegative trigonometric polynomials. (English) Zbl 1007.42001
Reviewer: W.Łenski (Poznań)
MSC:
42A05
Greedy algorithms with regard to multivariate systems with special structure. (English) Zbl 0962.41007
Reviewer: Aleksey Rozhdestvensky (Moskva)
Weighted polynomial inequalities with doubling and \(A_\infty\) weights. (English) Zbl 0956.42001
Reviewer: D.S.Lubinsky (Wits)
On converse Marcinkiewicz-Zygmund inequalities in \(L_p,p>1\). (English) Zbl 0939.41001
Reviewer: Jan Stankiewicz (Rzeszów)
On the degree of approximation by manifolds of finite pseudo-dimension. (English) Zbl 0954.41016
Reviewer: S.S.Volosivets (Saratov)
Lattice paths and positive trigonometric sums. (English) Zbl 0924.42004
Reviewer: D.M.Bressoud (St.Paul)
Greedy algorithm and \(m\)-term trigonometric approximation. (English) Zbl 0931.42002
Reviewer: K.Najzar (Praha)
On the asymptotically optimal rate of approximation of multiplier operators from \(L_p\) into \(L_q\). (English) Zbl 0901.41014
Reviewer: S.Norvidas (Vilnius)
On \(L_p\) extremal polynomials. (English) Zbl 0907.41004
Reviewer: D.S.Lubinsky (Wits)
Fundamental sets of continuous functions on spheres. (English) Zbl 0886.41016
Reviewer: S.M.Mazhar (Kuwait)
Strong summability of Fourier series of the periodic functions from \(H^ p(0 <p\leq 1)\). (English) Zbl 0859.42001
Reviewer: L.Leindler (Szeged)
Generalized spline wavelets. (English) Zbl 0848.41009
Widths and distributions of values of the approximation functional on the Sobolev spaces with measure. (English) Zbl 0872.41010
Reviewer: K.Najzar (Praha)
The Gibbs phenomenon for best \(L_ 1\)-trigonometric polynomial approximation. (English) Zbl 0838.42001
Reviewer: L.Leindler (Szeged)
Polynomials of minimal \(L_ \alpha\)-deviation, \(\alpha>0\). (English) Zbl 0807.41016
Reviewer: Wang Kunyang (Beijing)
Distribution of interpolation points of best \(L_ 2\)-approximants (\(n\)th partial sums of Fourier series). (English) Zbl 0780.41003
On trigonometric wavelets. (English) Zbl 0780.42020
Reviewer: B.Rubin (Jerusalem)
The exact error of trigonometric interpolation for differentiable functions. (English) Zbl 0747.42005
Reviewer: I.Badea (Craiova)
The “coarse and fine theory of interpolation” of Erdős and Turán in a broader view. (English) Zbl 0747.42004
Reviewer: I.Badea (Craiova)
On the preservation of periodic monotonicity. (English) Zbl 0746.42003
Reviewer: L.Leindler (Szeged)
Fourier analysis of the approximation power of principal shift-invariant spaces. (English) Zbl 0801.41027
Polynomial approximation errors for functions of low-order continuity. (English) Zbl 0733.41013
Reviewer: J.Stulić
On two complex Zolotarev’s first problems. (English) Zbl 0731.30031
Reviewer: K.Menke (Dortmund)
Product formulas and convolution structure for Fourier-Bessel series. (English) Zbl 0676.42012
MSC:
42A85
A necessary and sufficient condition for the linear independence of the integer translates of a compactly supported distribution. (English) Zbl 0667.41011
Symmetric iterative interpolation processes. (English) Zbl 0659.65004
Reviewer: A.de Castro
Approximation of measures by Markov processes and homogeneous affine iterated function systems. (English) Zbl 0658.60093
Approximation by Nörlund means of double Fourier series to continuous functions in two variables. (English) Zbl 0624.42002
Reviewer: S.M.Shah
Continued fractions associated with trigonometric and other strong moment problems. (English) Zbl 0634.41015
Reviewer: S.Sharma
On polynomials with a prescribed zero. (English) Zbl 0604.41006
Reviewer: D.Leviatan
Trigonometric polynomials with many real zeros. (English) Zbl 0583.42002
MSC:
42A10
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