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Found 531 Documents (Results 1–100)

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Sumin, Vladimir Iosifovich; Sumin, Mikhail Iosifovich

On regularization of the Lagrange principle in the optimization problems for linear distributed Volterra type systems with operator constraints. (Russian. English summary) Zbl 1498.49036

Izv. Inst. Mat. Inform., Udmurt. Gos. Univ. 59, 85-113 (2022).
MSC:  49K20 39B22 49N15 47A52
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\textit{V. I. Sumin} and \textit{M. I. Sumin}, Izv. Inst. Mat. Inform., Udmurt. Gos. Univ. 59, 85--113 (2022; Zbl 1498.49036)
Full Text: DOI MNR
Poborchaya, N. E.; Lobov, E. M.

Analysis of the influence of the Lagrange multiplier on the operation of the algorithm for estimating the signal parameters under a priori uncertainty. (English) Zbl 1515.65133

Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat. Model. Program. 15, No. 2, 118-124 (2022).
MSC:  65J15 65J20 62J05
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\textit{N. E. Poborchaya} and \textit{E. M. Lobov}, Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat. Model. Program. 15, No. 2, 118--124 (2022; Zbl 1515.65133)
Full Text: DOI MNR
Zlotnik, A. A.; Fedchenko, A. S.

On the properties of a quasihydrodynamic system of equations for a homogeneous gas mixture with a common regularizing velocity. (English. Russian original) Zbl 1506.35181

Differ. Equ. 58, No. 3, 341-356 (2022); translation from Differ. Uravn. 58, No. 3, 346-360 (2022).
MSC:  35Q35 76N15 76T30 76N10 80A19 35B65 35A01 35A02
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\textit{A. A. Zlotnik} and \textit{A. S. Fedchenko}, Differ. Equ. 58, No. 3, 341--356 (2022; Zbl 1506.35181); translation from Differ. Uravn. 58, No. 3, 346--360 (2022)
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Eliseev, A. G.; Ratnikova, T. A.; Shaposhnikova, D. A.

Development of the Lomov regularization method for a singularly perturbed Cauchy problem and a boundary value problem on the half-line for parabolic equations with a “simple” rational turning point. (English. Russian original) Zbl 1491.35013

Differ. Equ. 58, No. 3, 314-340 (2022); translation from Differ. Uravn. 58, No. 3, 319-345 (2022).
MSC:  35B25 35B50 35C10 35K15
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\textit{A. G. Eliseev} et al., Differ. Equ. 58, No. 3, 314--340 (2022; Zbl 1491.35013); translation from Differ. Uravn. 58, No. 3, 319--345 (2022)
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Sumin, V. I.; Sumin, M. I.

Regularization of the classical optimality conditions in optimal control problems for linear distributed systems of Volterra type. (English. Russian original) Zbl 1484.49008

Comput. Math. Math. Phys. 62, No. 1, 42-65 (2022); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 1, 45-70 (2022).
MSC:  49J21 49K21 39B05 39B42
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\textit{V. I. Sumin} and \textit{M. I. Sumin}, Comput. Math. Math. Phys. 62, No. 1, 42--65 (2022; Zbl 1484.49008); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 1, 45--70 (2022)
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Sumin, Vladimir Iosifovich; Sumin, Mikhail Iosifovich

Regularized classical optimality conditions in iterative form for convex optimization problems for distributed Volterra-type systems. (Russian. English summary) Zbl 1483.49029

Vestn. Udmurt. Univ., Mat. Mekh. Komp’yut. Nauki 31, No. 2, 265-284 (2021).
MSC:  49K20 39B22 49N15 47A52
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\textit{V. I. Sumin} and \textit{M. I. Sumin}, Vestn. Udmurt. Univ., Mat. Mekh. Komp'yut. Nauki 31, No. 2, 265--284 (2021; Zbl 1483.49029)
Full Text: DOI MNR
Strani, Marta

The role of a regularization in hyperbolic instabilities. (English) Zbl 1459.35272

Bressan, Alberto (ed.) et al., Hyperbolic problems: theory, numerics, applications. Proceedings of the 17th international conference, HYP2018, Pennsylvania State University, University Park, PA, USA, June 25–29, 2018. Springfield, MO: American Institute of Mathematical Sciences (AIMS). AIMS Ser. Appl. Math. 10, 649-657 (2020).
MSC:  35L45 35K58 35B35 35Q31
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\textit{M. Strani}, AIMS Ser. Appl. Math. 10, 649--657 (2020; Zbl 1459.35272)
Leonov, A. S.

Effective algorithms for computing global and local posterior error estimates of solutions to linear ill-posed problems. (English. Russian original) Zbl 1441.47008

Russ. Math. 64, No. 2, 26-34 (2020); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 2, 29-38 (2020).
MSC:  47A52 65J20
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\textit{A. S. Leonov}, Russ. Math. 64, No. 2, 26--34 (2020; Zbl 1441.47008); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 2, 29--38 (2020)
Full Text: DOI
Ageev, A. L.; Antonova, T. V.

Investigation of methods of localization of \(q\)-jumps and discontinuities of first kind of noisy function. (English. Russian original) Zbl 1476.65031

Russ. Math. 63, No. 7, 1-11 (2019); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2019, No. 7, 3-14 (2019).
MSC:  65D99 41A25
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\textit{A. L. Ageev} and \textit{T. V. Antonova}, Russ. Math. 63, No. 7, 1--11 (2019; Zbl 1476.65031); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2019, No. 7, 3--14 (2019)
Full Text: DOI
Leonov, A. S.

A new algorithm for a posteriori error estimation for approximate solutions of linear ill-posed problems. (English. Russian original) Zbl 1457.65025

Comput. Math. Math. Phys. 59, No. 2, 193-200 (2019); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 2, 203-210 (2019).
MSC:  65J20 65J10 35A15 35R30 47A52
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\textit{A. S. Leonov}, Comput. Math. Math. Phys. 59, No. 2, 193--200 (2019; Zbl 1457.65025); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 2, 203--210 (2019)
Full Text: DOI
Bakushinskii, A. B.; Leonov, A. S.

Low-cost numerical method for solving a coefficient inverse problem for the wave equation in three-dimensional space. (English. Russian original) Zbl 1457.65081

Comput. Math. Math. Phys. 58, No. 4, 548-561 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 4, 561-574 (2018).
MSC:  65M32 65T50 76Q05
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\textit{A. B. Bakushinskii} and \textit{A. S. Leonov}, Comput. Math. Math. Phys. 58, No. 4, 548--561 (2018; Zbl 1457.65081); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 4, 561--574 (2018)
Full Text: DOI
Maslakov, M. L.

Application of two-parameter stabilizing functions in solving a convolution-type integral equation by regularization method. (English. Russian original) Zbl 06909644

Comput. Math. Math. Phys. 58, No. 4, 529-536 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 4, 541-549 (2018).
MSC:  65-XX 93-XX
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\textit{M. L. Maslakov}, Comput. Math. Math. Phys. 58, No. 4, 529--536 (2018; Zbl 06909644); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 4, 541--549 (2018)
Full Text: DOI
Demchenko, M. N.; Filimonenkova, N. V.

Regularization of an ill-posed Cauchy problem for the wave equation (numerical experiment). (English. Russian original) Zbl 1516.35483

J. Math. Sci., New York 226, No. 6, 720-726 (2017); translation from Zap. Nauchn. Semin. POMI 451, 43-53 (2016).
MSC:  35R25 35L20
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\textit{M. N. Demchenko} and \textit{N. V. Filimonenkova}, J. Math. Sci., New York 226, No. 6, 720--726 (2017; Zbl 1516.35483); translation from Zap. Nauchn. Semin. POMI 451, 43--53 (2016)
Full Text: DOI
Turc, Catalin; Boubendir, Yassine; Riahi, Mohamed Kamel

Well-conditioned boundary integral equation formulations and Nyström discretizations for the solution of Helmholtz problems with impedance boundary conditions in two-dimensional Lipschitz domains. (English) Zbl 1376.65146

J. Integral Equations Appl. 29, No. 3, 441-472 (2017).
MSC:  65N38 35J05 65N55 65N12
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\textit{C. Turc} et al., J. Integral Equations Appl. 29, No. 3, 441--472 (2017; Zbl 1376.65146)
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