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Found 560 Documents (Results 1–100)

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Anikonov, Yu. E.; Bogdanov, V. V.; Volkov, Yu. S.; Derevtsov, E. Yu.

On the determination of the velocity and elastic parameters of the focal zone medium from the earthquake hodographs. (Russian. English summary) Zbl 1507.86005

Sib. Zh. Ind. Mat. 24, No. 4, 5-24 (2021); translation in J. Appl. Ind. Math. 15, No. 4, 569-585 (2021).
MSC:  86A15
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\textit{Yu. E. Anikonov} et al., Sib. Zh. Ind. Mat. 24, No. 4, 5--24 (2021; Zbl 1507.86005); translation in J. Appl. Ind. Math. 15, No. 4, 569--585 (2021)
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Uspenskiĭ, Aleksandr Aleksandrovich; Lebedev, Pavel Dmitrievich

On singularity structure of minimax solution to Dirichlet problem for eikonal type equation with discontinuous curvature of boundary of boundary set. (Russian. English summary) Zbl 1499.32049

Ufim. Mat. Zh. 13, No. 3, 129-154 (2021); translation in Ufa Math. J. 13, No. 3, 126-151 (2021).
MSC:  32S30 32T27 34H20 35A18 35B32
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\textit{A. A. Uspenskiĭ} and \textit{P. D. Lebedev}, Ufim. Mat. Zh. 13, No. 3, 129--154 (2021; Zbl 1499.32049); translation in Ufa Math. J. 13, No. 3, 126--151 (2021)
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Uspenskiĭ, Aleksandr Aleksandrovich; Lebedev, Pabel Dmitrievich

On the structure of the singular set of solutions in one class of 3D time-optimal control problems. (Russian. English summary) Zbl 1484.35011

Vestn. Udmurt. Univ., Mat. Mekh. Komp’yut. Nauki 31, No. 3, 471-486 (2021).
MSC:  35A18 35F21 35F30 14H20 14J17
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\textit{A. A. Uspenskiĭ} and \textit{P. D. Lebedev}, Vestn. Udmurt. Univ., Mat. Mekh. Komp'yut. Nauki 31, No. 3, 471--486 (2021; Zbl 1484.35011)
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Divakov, Dmitriy V.; Tiutiunnik, Anastasiia A.; Sevastianov, Anton L.

Symbolic-numeric study of geometric properties of adiabatic waveguide modes. (English) Zbl 07635832

Boulier, François (ed.) et al., Computer algebra in scientific computing. 22nd international workshop, CASC 2020, Linz, Austria, September 14–18, 2020. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 12291, 228-244 (2020).
MSC:  68W30
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\textit{D. V. Divakov} et al., Lect. Notes Comput. Sci. 12291, 228--244 (2020; Zbl 07635832)
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Tsar’kov, I. G.

Some applications of geometric theory of approximations. (English. Russian original) Zbl 1477.41015

J. Math. Sci., New York 245, No. 1, 64-82 (2020); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 143, 63-80 (2017).
Reviewer: Sergei S. Platonov (Petrozavodsk)
MSC:  41A65 54C65 78A05
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\textit{I. G. Tsar'kov}, J. Math. Sci., New York 245, No. 1, 64--82 (2020; Zbl 1477.41015); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 143, 63--80 (2017)
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Belyaev, Alexander G.; Fayolle, Pierre-Alain

A variational method for accurate distance function estimation. (English) Zbl 1442.35117

Garanzha, Vladimir A. (ed.) et al., Numerical geometry, grid generation and scientific computing. Proceedings of the 9th international conference, NUMGRID 2018 / Voronoi 150, celebrating the 150th anniversary of G.F. Voronoi, Moscow, Russia, December 3–5, 2018. Cham: Springer. Lect. Notes Comput. Sci. Eng. 131, 175-181 (2019).
MSC:  35J60 35J25
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\textit{A. G. Belyaev} and \textit{P.-A. Fayolle}, Lect. Notes Comput. Sci. Eng. 131, 175--181 (2019; Zbl 1442.35117)
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Chang, Kaiwen; Figliuzzi, Bruno

Fast marching based superpixels generation. (English) Zbl 1445.68283

Burgeth, Bernhard (ed.) et al., Mathematical morphology and its applications to signal and image processing. 14th international symposium, ISMM 2019, Saarbrücken, Germany, July 8–10, 2019. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 11564, 350-361 (2019).
MSC:  68U10
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\textit{K. Chang} and \textit{B. Figliuzzi}, Lect. Notes Comput. Sci. 11564, 350--361 (2019; Zbl 1445.68283)
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Tsar’kov, Igor’ G.

Smooth solutions of the eikonal equation and the behaviour of local minima of the distance function. (English. Russian original) Zbl 1429.41034

Izv. Math. 83, No. 6, 1234-1258 (2019); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 167-194 (2019).
MSC:  41A65 54C60 78A05
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\textit{I. G. Tsar'kov}, Izv. Math. 83, No. 6, 1234--1258 (2019; Zbl 1429.41034); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 83, No. 6, 167--194 (2019)
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Churbanov, Alexander G.; Vabishchevich, Petr N.

Numerical solving a boundary value problem for the eikonal equation. (English) Zbl 1434.65245

Dimov, Ivan (ed.) et al., Finite difference methods. Theory and applications. 7th international conference, FDM 2018, Lozenetz, Bulgaria, June 11–16, 2018. Revised selected papers. Cham: Springer. Lect. Notes Comput. Sci. 11386, 28-34 (2019).
MSC:  65N30
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\textit{A. G. Churbanov} and \textit{P. N. Vabishchevich}, Lect. Notes Comput. Sci. 11386, 28--34 (2019; Zbl 1434.65245)
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Osetrin, K. E.; Filippov, A. E.; Osetrin, E. K.

Models of generalized scalar-tensor gravitation theories with radiation allowing the separation of variables in the eikonal equation. (English. Russian original) Zbl 1418.83047

Russ. Phys. J. 61, No. 8, 1383-1391 (2018); translation from Izv. Vyssh. Uchebn. Zaved., Fiz. 61, No. 8, 17-23 (2018).
MSC:  83D05 83C20
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\textit{K. E. Osetrin} et al., Russ. Phys. J. 61, No. 8, 1383--1391 (2018; Zbl 1418.83047); translation from Izv. Vyssh. Uchebn. Zaved., Fiz. 61, No. 8, 17--23 (2018)
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Moskalenskĭ, E. D.

A new class of exact solutions to the two-dimensional eikonal equation where the velocity in the medium depends on one of the spatial coordinates alone. (Russian, English) Zbl 1413.35110

Sib. Zh. Vychisl. Mat. 21, No. 3, 259-271 (2018); translation in Numer. Analysis Appl. 11, No. 3, 208-219 (2018).
MSC:  35C05 35F20
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\textit{E. D. Moskalenskĭ}, Sib. Zh. Vychisl. Mat. 21, No. 3, 259--271 (2018; Zbl 1413.35110); translation in Numer. Analysis Appl. 11, No. 3, 208--219 (2018)
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Uspenskii, Aleksandr Aleksandrovich; Lebedev, Pavel Dmitrievich

Identification of the singularity of the generalized solution of the Dirichlet problem for an eikonal type equation under the conditions of minimal smoothness of a boundary set. (Russian. English summary) Zbl 1402.35011

Vestn. Udmurt. Univ., Mat. Mekh. Komp’yut. Nauki 28, No. 1, 59-73 (2018).
MSC:  35A18 35F30
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\textit{A. A. Uspenskii} and \textit{P. D. Lebedev}, Vestn. Udmurt. Univ., Mat. Mekh. Komp'yut. Nauki 28, No. 1, 59--73 (2018; Zbl 1402.35011)
Full Text: DOI MNR
Szeftel, Jérémie

Parametrix for wave equations on a rough background. III: Space-time regularity of the phase. (English) Zbl 1444.35010

Astérisque 401. Paris: Société Mathématique de France (SMF) (ISBN 978-2-85629-882-4/pbk). viii, 322 p. (2018).
MSC:  35-02 35Q76 58J45 35A17 35B65 35L72 83C05
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\textit{J. Szeftel}, Parametrix for wave equations on a rough background. III: Space-time regularity of the phase. Paris: Société Mathématique de France (SMF) (2018; Zbl 1444.35010)
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