Found 413 Documents (Results 1–100)
Donoho-Stark and Price uncertainty principles for a class of \(q\)-integral transforms with bounded kernels. (English) Zbl 07920513
Reformulations and generalizations of Hoffman’s and Genčev’s combinatorial identities. (English) Zbl 1543.05008
Winkler-Pasternak foundation effect on the buckling loads of arbitrarily rigid or restrained supported nonlocal beams made of different FGM and porosity distributions. (English) Zbl 1537.74064
Effect of porous medium bed on viscous fluid flow down rectangular inclined channel with varying permeability. (English) Zbl 07834657
Size-dependent Levinson beam theory for thermal vibration of a nanobeam with deformable boundary conditions. (English) Zbl 1532.74072
New fractional integral formulas and kinetic model associated with the hypergeometric superhyperbolic sine function. (English) Zbl 1541.26023
Hölder and Kurokawa meet Borwein-Dykshoorn and Adamchik. (English) Zbl 1542.11072
Reviewer: D. L. Suthar (Dessie)
On two conjectures of Sun concerning Apéry-like series. (English) Zbl 1537.11116
Reviewer: Jiangtao Li (Beijing)
MSC:
11M32
Dynamics of a FG porous microbeam with metal foam under deformable boundaries. (English) Zbl 1530.74029
A sufficient condition for uniform convergence of trigonometric series with \(p\)-bounded variation coefficients. (English) Zbl 1526.42006
Reviewer: Xhevat Z. Krasniqi (Prishtina)
Estimating the smallest positive zero of sine series of a harmonic function in a disk. (English. Russian original) Zbl 1522.42007
Mosc. Univ. Math. Bull. 78, No. 3, 120-129 (2023); translation from Vestn. Mosk. Univ., Ser. I 78, No. 3, 15-23 (2023).
Evaluation of iterated log-sine integrals in terms of multiple polylogarithms. (English) Zbl 1542.11081
Reviewer: Sami Omar (Sukhair)
Equilibrium states for the massive sine-Gordon theory in the Lorentzian signature. (English) Zbl 1527.81100
A hardening nonlocal approach for vibration of axially loaded nanobeam with deformable boundaries. (English) Zbl 1515.74030
On the domain of constancy of the sign of a harmonic function in the unit disk with additional conditions on the boundary. (English) Zbl 1512.42002
Asymptotics of sums of sine series with fractional monotonicity coefficients. (English) Zbl 1538.42020
Reviewer: Takeshi Kawazoe (Yokohama)
Uniform and non-uniform sampling of bandlimited functions at minimal density with a few additional samples. (English) Zbl 1504.94080
New insights on convergence properties of peridynamic models for transient diffusion and elastodynamics. (English) Zbl 1509.74006
Maclaurin’s series expansions for positive integer powers of inverse (hyperbolic) sine and tangent functions, closed-form formula of specific partial Bell polynomials, and series representation of generalized logsine function. (English) Zbl 1513.41041
Buckling analysis of restrained nanobeams using strain gradient elasticity. (English) Zbl 1502.74044
Taylor’s series expansions for real powers of two functions containing squares of inverse cosine function, closed-form formula for specific partial Bell polynomials, and series representations for real powers of pi. (English) Zbl 1525.41014
On approximating initial data in some linear evolutionary equations involving fraction Laplacian. (English) Zbl 1500.35297
Properties of sine series in weighted spaces. (English. Russian original) Zbl 1502.30007
Mosc. Univ. Math. Bull. 77, No. 2, 49-66 (2022); translation from Vestn. Mosk. Univ., Ser. I 77, No. 2, 3-17 (2022).
MSC:
30B10
Optimal two-sided estimates on the interval \([\pi/2,\pi]\) of the sum of the sine series with convex coefficient sequence. (English. Russian original) Zbl 07581899
Math. Notes 112, No. 2, 328-331 (2022); translation from Mat. Zametki 112, No. 2, 317-320 (2022).
MSC:
42A24
Uniform convergence of sine integral-series. (English) Zbl 1498.40002
Reviewer: İsmail Aslan (Ankara)
Inequalities for sine sums with more variables. (English) Zbl 1485.26016
Reviewer: James Adedayo Oguntuase (Abeokuta)
Maclaurin’s type infinite products involving certain transcendental functions. (English) Zbl 1501.40002
Optimal bounds for the sine and hyperbolic tangent means by arithmetic and centroidal means in exponential type. (English) Zbl 1525.26031
MSC:
26D15
A necessary condition for uniform convergence of double sine series with \(p\)-bounded variation coefficients. (English) Zbl 1495.42002
Reviewer: Hare Krishna Nigam (Gaya)
On some inequalities for sine polynomials. (English) Zbl 1492.26014
Reviewer: Raghib Abu-Saris (Edmonton)
Direct and inverse Cauchy problems for generalized space-time fractional differential equations. (English) Zbl 1485.35404
On the positivity of average sums of sine series with monotone coefficients. (English. Russian original) Zbl 1480.42005
Math. Notes 110, No. 4, 623-627 (2021); translation from Mat. Zametki 110, No. 4, 630-634 (2021).
Reviewer: Shuichi Sato (Kanazawa)
MSC:
42A32
A spring-damping regularization of the Fourier sine series solution to the inverse Cauchy problem for a 3D sideways heat equation. (English) Zbl 1473.65170
Generalizations and applications of Srinivasa Ramanujan’s integral associated with infinite Fourier sine transforms in terms of Meijer’s \(G\)-function. (English) Zbl 1481.42006
Sixth-order compact finite difference scheme with discrete sine transform for solving Poisson equations with Dirichlet boundary conditions. (English) Zbl 1478.65101
Refinement of estimates of sums of sine series with monotone coefficients and cosine series with convex coefficients. (English. Russian original) Zbl 1467.42005
Math. Notes 109, No. 5, 808-818 (2021); translation from Mat. Zametki 109, No. 5, 768-780 (2021).
Uniform convergence criterion for non-harmonic sine series. (English. Russian original) Zbl 1460.42005
Sb. Math. 212, No. 1, 70-110 (2021); translation from Mat. Sb. 212, No. 1, 78-118 (2021).
Computing the matrix sine and cosine simultaneously with a reduced number of products. (English) Zbl 1460.65047
MSC:
65F60
Some properties of cosine series with coefficients from class of general monotone sequences order \(r\). (English) Zbl 1474.42016
Approximation of integral operators for absolutely continuous functions whose derivatives are essentially bounded. (English) Zbl 1491.26020
A Poisson logarithmic integral for integer order powers \(n = 0, 1, 2\), and 3. (English) Zbl 1499.40064
New inequalities between the inverse hyperbolic tangent and the analogue for corresponding functions. (English) Zbl 1503.26025
A new efficient method for time-fractional sine-Gordon equation with the Caputo and Caputo-Fabrizio operators. (English) Zbl 1475.65158
\(L^1\)-convergence of the sine series whose coefficients belong to some generalized classes of sequences. (English) Zbl 1466.42001
Reducing the near boundary errors of nonhomogeneous heat equations by boundary consistent methods. (English) Zbl 07325587
The sets of positivity of sine series with monotone coefficients. (English) Zbl 1474.42002
Reviewer: Antonio López-Carmona (Granada)
MSC:
42A05
Sharp two-sided estimate for the sum of a sine series with convex slowly varying sequence of coefficients. (English) Zbl 1474.42019
Reviewer: Adhemar Bultheel (Leuven)
MSC:
42A32
Two-sided estimates of the \(L^\infty \)-norm of the sum of a sine series with monotone coefficients \(\{b_k\}\) via the \(\ell^\infty \)-norm of the sequence \(\{kb_k\}\). (English. Russian original) Zbl 1451.42008
Math. Notes 108, No. 4, 471-476 (2020); translation from Mat. Zametki 108, No. 4, 483-489 (2020).
MSC:
42A24
Some characteristics of time-memory embedded into a time-fractional version of the Boussinesq system: graphical analysis. (English) Zbl 1441.35251
Exact constants in Telyakovskii’s two-sided estimate of the sum of a sine series with convex sequence of coefficients. (English. Russian original) Zbl 1442.42005
Math. Notes 107, No. 6, 988-1001 (2020); translation from Mat. Zametki 107, No. 6, 906-921 (2020).
A functional inequality for sine series. (English. Russian original) Zbl 1442.42003
Math. Notes 107, No. 3, 531-533 (2020); translation from Mat. Zametki 107, No. 3, 476-478 (2020).
Uniform convergence of trigonometric series with \(p\)-bounded variation coefficients. (English) Zbl 1453.42004
Reviewer: Elijah Liflyand (Ramat-Gan)
Optimal bounds of the arithmetic mean in terms of new Seiffert-like means. (English) Zbl 1439.26047
Reviewer: James Adedayo Oguntuase (Abeokuta)
On the convergence of cardinal splines. (English) Zbl 1457.41003
Reviewer: Martin D. Buhmann (Gießen)
Determinants of two kinds of matrices whose elements involve sine functions. (English) Zbl 1513.15011
Inequalities between the inverse hyperbolic tangent and the inverse sine and the analogue for corresponding functions. (English) Zbl 1499.26055
Analytical study of free vibration for cracked rectangular plate. (Chinese. English summary) Zbl 1449.74103
A variant of the Fejér-Jackson inequality. (English) Zbl 1449.26018
Reviewer: Constantin Niculescu (Craiova)
Absolute multiple sine functions. (English) Zbl 1425.11152
MSC:
11M32
A two-variable generalization of the Kummer-Malmstén formula for the logarithm of the double gamma and double sine functions. (English) Zbl 1434.11191
Higher order scheme for two-dimensional inhomogeneous sine-Gordon equation with impulsive forcing. (English) Zbl 1508.65141
Extensions of Móricz classes and convergence of trigonometric sine series in \(L^1\)-norm. (English) Zbl 1425.42003
MSC:
42A20
Estimates with sharp constants of the sums of sine series with monotone coefficients of certain classes in terms of the Salem majorant. (English. Russian original) Zbl 1412.42012
Math. Notes 104, No. 5, 702-711 (2018); translation from Mat. Zametki 104, No. 5, 725-736 (2018).
Reviewer: Sorin Gheorghe Gal (Oradea)
Extensions of the natural approach to refinements and generalizations of some trigonometric inequalities. (English) Zbl 1445.26015
The measure of the set of zeros of the sum of a nondegenerate sine series with monotone coefficients in the closed interval \([0,\pi]\). (English. Russian original) Zbl 1401.42002
Math. Notes 103, No. 4, 621-625 (2018); translation from Mat. Zametki 103, No. 4, 576-581 (2018).
Reviewer: Alexander Ulanovskii (Stavanger)
MSC:
42A16
A truncated Taylor series algorithm for computing the action of trigonometric and hyperbolic matrix functions. (English) Zbl 1391.15031
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