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Found 89 Documents (Results 1–89)

100
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Dutta, Sabyasachi; Bhore, Tamal; Sardar, M. Kutubuddin; Adhikari, Avishek; Sakurai, Kouichi

Visual secret sharing scheme with distributed levels of importance of shadows. (English) Zbl 07388834

Giri, Debasis (ed.) et al., Proceedings of the fifth international conference on mathematics and computing, ICMC 2019, Bhubaneswar, India, February 6–9, 2019. Singapore: Springer. Adv. Intell. Syst. Comput. 1170, 19-32 (2021).
MSC:  68-XX
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\textit{S. Dutta} et al., Adv. Intell. Syst. Comput. 1170, 19--32 (2021; Zbl 07388834)
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Butuzov, V. F.

Asymptotics of a steplike contrast structure in a partially dissipative stationary system of equations. (English. Russian original) Zbl 1466.34054

Comput. Math. Math. Phys. 61, No. 1, 53-79 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 1, 57-84 (2021).
Reviewer: Klaus R. Schneider (Berlin)
MSC:  34E15 34E05 34B15
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\textit{V. F. Butuzov}, Comput. Math. Math. Phys. 61, No. 1, 53--79 (2021; Zbl 1466.34054); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 1, 57--84 (2021)
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Bykov, A. A.; Ermakova, K. E.

Exact solutions of equations of a nonstationary front with equilibrium points of a fractional order. (English. Russian original) Zbl 1418.35019

Comput. Math. Math. Phys. 58, No. 12, 1977-1988 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 12, 2060-2073 (2018).
MSC:  35B25 35K57 35K20 80A25
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\textit{A. A. Bykov} and \textit{K. E. Ermakova}, Comput. Math. Math. Phys. 58, No. 12, 1977--1988 (2018; Zbl 1418.35019); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 12, 2060--2073 (2018)
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Khachai, O. Yu.

Asymptotics of a solution of a three-dimensional nonlinear wave equation near a butterfly catastrophe point. (English. Russian original) Zbl 1400.35019

Proc. Steklov Inst. Math. 301, Suppl. 1, S72-S87 (2018); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 23, No. 2, 250-265 (2017).
MSC:  35B25 35L15 35L71
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\textit{O. Yu. Khachai}, Proc. Steklov Inst. Math. 301, S72--S87 (2018; Zbl 1400.35019); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 23, No. 2, 250--265 (2017)
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Butuzov, V. F.

On asymptotics for the solution of a singularly perturbed parabolic problem with a multizone internal transition layer. (English. Russian original) Zbl 1397.35011

Comput. Math. Math. Phys. 58, No. 6, 925-949 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 6, 961-987 (2018).
MSC:  35B25 35K20 35B10 35C20
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\textit{V. F. Butuzov}, Comput. Math. Math. Phys. 58, No. 6, 925--949 (2018; Zbl 1397.35011); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 6, 961--987 (2018)
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Levashova, Natalia; Muhartova, Julia; Davydova, Marina

The use of contrast structures theory for the mathematical modelling of the wind field in spatially heterogeneous vegetation cover. (English) Zbl 1391.76262

Dimov, Ivan (ed.) et al., Numerical analysis and its applications. 6th international conference, NAA 2016, Lozenetz, Bulgaria, June 15–22, 2016. Revised selected papers. Cham: Springer (ISBN 978-3-319-57098-3/pbk; 978-3-319-57099-0/ebook). Lecture Notes in Computer Science 10187, 464-472 (2017).
MSC:  76F99 86A10
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\textit{N. Levashova} et al., Lect. Notes Comput. Sci. 10187, 464--472 (2017; Zbl 1391.76262)
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Davydova, M. A.; Nefedov, N. N.

Existence and stability of contrast structures in multidimensional singularly perturbed reaction-diffusion-advection problems. (English) Zbl 1368.65219

Dimov, Ivan (ed.) et al., Numerical analysis and its applications. 6th international conference, NAA 2016, Lozenetz, Bulgaria, June 15–22, 2016. Revised selected papers. Cham: Springer (ISBN 978-3-319-57098-3/pbk; 978-3-319-57099-0/ebook). Lecture Notes in Computer Science 10187, 277-285 (2017).
MSC:  65N22 35J60 35B25 65N12
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\textit{M. A. Davydova} and \textit{N. N. Nefedov}, Lect. Notes Comput. Sci. 10187, 277--285 (2017; Zbl 1368.65219)
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Ni, Min Kan; Wang, Ai Feng

Step-like contrast structure for a nonlinear system of singularly perturbed differential equations in the critical case. (English) Zbl 1361.34068

Differ. Equ. 52, No. 12, 1575-1584 (2016); translation from Differ. Uravn. 52, No. 12, 1647-1656 (2016).
MSC:  34E05 34E15 34B15
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\textit{M. K. Ni} and \textit{A. F. Wang}, Differ. Equ. 52, No. 12, 1575--1584 (2016; Zbl 1361.34068); translation from Differ. Uravn. 52, No. 12, 1647--1656 (2016)
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Vasil’eva, A. B.

A two-point boundary value problem for a singularly perturbed equation with a reduced equation having multiple roots. (Russian, English) Zbl 1224.34177

Zh. Vychisl. Mat. Mat. Fiz. 49, No. 6, 1067-1079 (2009); translation in Comput. Math., Math. Phys. 49, No. 6, 1021-1032 (2009).
MSC:  34E15 34B15
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\textit{A. B. Vasil'eva}, Zh. Vychisl. Mat. Mat. Fiz. 49, No. 6, 1067--1079 (2009; Zbl 1224.34177); translation in Comput. Math., Math. Phys. 49, No. 6, 1021--1032 (2009)
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Bobodzhanov, A. A.; Safonov, V. F.

Equations with an unstable spectral value of the kernel of an integral operator and contrast structures. (English. Russian original) Zbl 1122.45004

Differ. Equ. 42, No. 5, 705-719 (2006); translation from Differ. Uravn. 42, No. 5, 660-673 (2006).
Reviewer: Iulian Stoleriu (Heidelberg)
MSC:  45J05 45L05
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\textit{A. A. Bobodzhanov} and \textit{V. F. Safonov}, Differ. Equ. 42, No. 5, 705--719 (2006; Zbl 1122.45004); translation from Differ. Uravn. 42, No. 5, 660--673 (2006)
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Butuzov, V. F.; Nefedov, N. N.; Schneider, K. R.

Formation and propagation of steep transition layers in parabolic problems. (English. Russian original) Zbl 1107.35014

Mosc. Univ. Phys. Bull. 60, No. 1, 8-14 (2005); translation from Vestn. Mosk. Univ., Ser. III 2005, No. 1, 9-13 (2005).
MSC:  35B25 35K55 35K20
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\textit{V. F. Butuzov} et al., Mosc. Univ. Phys. Bull. 60, No. 1, 8--14 (2005; Zbl 1107.35014); translation from Vestn. Mosk. Univ., Ser. III 2005, No. 1, 9--13 (2005)
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Omel’chenko, O. E.

Contrast step-like structures for singularly perturbed quasi-linear second order differential equation in critical case. (Russian, English) Zbl 1079.34529

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 3, 472-483 (2005); translation in Comput. Math. Math. Phys. 45, No. 3, 454-464 (2005).
Reviewer: Andrei Zemskov (Moskva)
MSC:  34E05 34B15 34E20
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\textit{O. E. Omel'chenko}, Zh. Vychisl. Mat. Mat. Fiz. 45, No. 3, 472--483 (2005; Zbl 1079.34529); translation in Comput. Math. Math. Phys. 45, No. 3, 454--464 (2005)
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Bukzhalev, E. E.; Vasil’eva, A. B.

On stability of the step like contrast structure of solution to the parabolic equation. (Russian, English) Zbl 1114.35081

Zh. Vychisl. Mat. Mat. Fiz. 45, No. 3, 448-461 (2005); translation in Comput. Math. Math. Phys. 45, No. 3, 430-443 (2005).
Reviewer: Andrei Zemskov (Moskva)
MSC:  35K20 35B25 35B35
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\textit{E. E. Bukzhalev} and \textit{A. B. Vasil'eva}, Zh. Vychisl. Mat. Mat. Fiz. 45, No. 3, 448--461 (2005; Zbl 1114.35081); translation in Comput. Math. Math. Phys. 45, No. 3, 430--443 (2005)
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Vasil’eva, A. B.; Dmitriev, M. G.; Kan’, Min’ Ni

On a step-like contrast structure for a problem of the calculus of variations. (Russian, English) Zbl 1078.49025

Zh. Vychisl. Mat. Mat. Fiz. 44, No. 7, 1271-1280 (2004); translation in Comput. Math. Math. Phys. 44, No. 7, 1203-1212 (2004).
Reviewer: Andrei Zemskov (Moskva)
MSC:  49K40 34D15 34E20 93C70
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\textit{A. B. Vasil'eva} et al., Zh. Vychisl. Mat. Mat. Fiz. 44, No. 7, 1271--1280 (2004; Zbl 1078.49025); translation in Comput. Math. Math. Phys. 44, No. 7, 1203--1212 (2004)
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Bukzhalev, E. E.

Contrast step-like structures with stretched variables depending on various power of the perturbation parameter. (Russian, English) Zbl 1084.34533

Zh. Vychisl. Mat. Mat. Fiz. 44, No. 4, 662-675 (2004); translation in Comput. Math. Math. Phys. 44, No. 4, 626-639 (2004).
MSC:  34E05 34E20 34B15
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\textit{E. E. Bukzhalev}, Zh. Vychisl. Mat. Mat. Fiz. 44, No. 4, 662--675 (2004; Zbl 1084.34533); translation in Comput. Math. Math. Phys. 44, No. 4, 626--639 (2004)
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Butuzov, V. F.; Kryazhimskiĭ, S. A.; Nedel’ko, I. V.

On the global domain of influence of stable steplike contrast structures in the Dirichlet problem. (Russian, English) Zbl 1072.35538

Zh. Vychisl. Mat. Mat. Fiz. 44, No. 6, 1039-1061 (2004); translation in Comput. Math. Math. Phys. 44, No. 6, 985-1006 (2004).
MSC:  35K55 35B25 35B40
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\textit{V. F. Butuzov} et al., Zh. Vychisl. Mat. Mat. Fiz. 44, No. 6, 1039--1061 (2004; Zbl 1072.35538); translation in Comput. Math. Math. Phys. 44, No. 6, 985--1006 (2004)
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Vasil’eva, A. B.; Omel’chenko, O. E.

Contrast structures of variable type in quasilinear parabolic equations. (English. Russian original) Zbl 1082.35022

Differ. Equ. 40, No. 10, 1431-1448 (2004); translation from Differ. Uravn. 40, No. 10, 1358-1373 (2004).
Reviewer: Georgii Sviridyuk (Chelyabinsk)
MSC:  35B25 35K20 35B10
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\textit{A. B. Vasil'eva} and \textit{O. E. Omel'chenko}, Differ. Equ. 40, No. 10, 1431--1448 (2004; Zbl 1082.35022); translation from Differ. Uravn. 40, No. 10, 1358--1373 (2004)
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Butuzov, V. F.; Nedel’ko, I. V.

On the formation of a solution with an internal layer in a parabolic system with different Powers of a small parameter. (English. Russian original) Zbl 1068.35011

Differ. Equ. 40, No. 3, 382-395 (2004); translation from Differ. Uravn. 40, No. 3, 356-367 (2004).
MSC:  35B25 35K60 35K50
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\textit{V. F. Butuzov} and \textit{I. V. Nedel'ko}, Differ. Equ. 40, No. 3, 382--395 (2004; Zbl 1068.35011); translation from Differ. Uravn. 40, No. 3, 356--367 (2004)
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Vasil’eva, A. B.

On periodic solutions of a parabolic problem with a small parameter at the derivatives. (Russian, English) Zbl 1136.35306

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 7, 975-986 (2003); translation in Comput. Math. Math. Phys. 43, No. 7, 932-943 (2003).
Reviewer: Andrei Zemskov (Moskva)
MSC:  35B10 35B25 35K55
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\textit{A. B. Vasil'eva}, Zh. Vychisl. Mat. Mat. Fiz. 43, No. 7, 975--986 (2003; Zbl 1136.35306); translation in Comput. Math. Math. Phys. 43, No. 7, 932--943 (2003)
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Vasil’eva, A. B.

Internal layer in a boundary value problem for a system of two singularly perturbed second-order equations with the same order of singularity. (English. Russian original) Zbl 1036.34065

Comput. Math. Math. Phys. 41, No. 7, 1015-1025 (2001); translation from Zh. Vychisl. Mat. Mat. Fiz. 41, No. 7, 1067-1077 (2001).
Reviewer: Alexey Tret’yakov (Siedlce)
MSC:  34E05 34B15 34E15
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\textit{A. B. Vasil'eva}, Comput. Math. Math. Phys. 41, No. 7, 1015--1025 (2001; Zbl 1036.34065); translation from Zh. Vychisl. Mat. Mat. Fiz. 41, No. 7, 1067--1077 (2001)
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Nefedov, N. N.; Nikitin, A. G.

Development of the asymptotic method of differential inequalities for step-type solutions of singularly perturbed integro-differential equations. (English. Russian original) Zbl 1029.45008

Comput. Math. Math. Phys. 41, No. 7, 1005-1014 (2001); translation from Zh. Vychisl. Mat. Mat. Fiz. 41, No. 7, 1057-1066 (2001).
Reviewer: Alexey Tret’yakov (Siedlce)
MSC:  45M05 45G10 45J05
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\textit{N. N. Nefedov} and \textit{A. G. Nikitin}, Comput. Math. Math. Phys. 41, No. 7, 1005--1014 (2001; Zbl 1029.45008); translation from Zh. Vychisl. Mat. Mat. Fiz. 41, No. 7, 1057--1066 (2001)
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Bykov, A. A.; Voevodin, Vl. Val.; Kozyreva, O. V.; Popov, V. Yu.; Sokolov, D. D.

Evolution of two-dimensional contrast structures of complex form. (English. Russian original) Zbl 0965.35124

Comput. Math. Math. Phys. 39, No. 5, 769-778 (1999); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 5, 801-811 (1999).
MSC:  35Q35 76R50 65M12
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\textit{A. A. Bykov} et al., Comput. Math. Math. Phys. 39, No. 5, 769--778 (1999; Zbl 0965.35124); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 5, 801--811 (1999)
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Bykov, A. A.; Popov, V. Yu.

On the lifetime of one-dimensional transient contrast structures. (English. Russian original) Zbl 0965.35123

Comput. Math. Math. Phys. 39, No. 2, 266-273 (1999); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 2, 280-288 (1999).
MSC:  35Q35 76R50
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\textit{A. A. Bykov} and \textit{V. Yu. Popov}, Comput. Math. Math. Phys. 39, No. 2, 266--273 (1999; Zbl 0965.35123); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 2, 280--288 (1999)
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Vasil’eva, A. B.; Davydova, M. A.

On a contrast steplike structure for a class of second-order nonlinear singularly perturbed equations. (English. Russian original) Zbl 0961.34009

Comput. Math. Math. Phys. 38, No. 6, 900-908 (1998); translation from Zh. Vychisl. Mat. Mat. Fiz. 38, No. 6, 938-947 (1998).
Reviewer: Alexey Tret’yakov (Siedlce)
MSC:  34B16 34E15 34B15 34D15 65L20
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\textit{A. B. Vasil'eva} and \textit{M. A. Davydova}, Comput. Math. Math. Phys. 38, No. 6, 900--908 (1998; Zbl 0961.34009); translation from Zh. Vychisl. Mat. Mat. Fiz. 38, No. 6, 938--947 (1998)
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Geist, Silvia; Lengnink, Katja; Wille, Rudolf

An order-theoretic foundation for similarity measures. (English) Zbl 0901.92040

Diday, Edwin (ed.) et al., Ordinal and symbolic data analysis. Proceedings of the international conference, OSDA 95, Paris, June 20–23, 1995. Berlin: Springer. Studies in Classification, Data Analysis, and Knowledge Organization. 225-237 (1996).
MSC:  91C20 06F99
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\textit{S. Geist} et al., in: Ordinal and symbolic data analysis. Proceedings of the international conference, OSDA 95, Paris, June 20--23, 1995. Berlin: Springer. 225--237 (1996; Zbl 0901.92040)
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Nefedov, N. N.

Contrast structures of spike type in nonlinear singularly perturbed elliptic equations. (English. Russian original) Zbl 0789.35017

Russ. Acad. Sci., Dokl., Math. 46, No. 3, 410-413 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 327, No. 1, 16-19 (1992).
MSC:  35B25 35J70 35J65
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\textit{N. N. Nefedov}, Russ. Acad. Sci., Dokl., Math. 46, No. 3, 1 (1992; Zbl 0789.35017); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 327, No. 1, 16--19 (1992)
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Vasil’eva, A. B.; Butuzov, V. F.; Nefedov, N. N.

The contrast structure type solutions of nonlinear singularly perturbed equations. (English) Zbl 0795.35036

Mathematical modelling and applied mathematics, Proc. IMACS Int. Conf., Moscow/USSR 1990, 439-445 (1992).
MSC:  35J65 35B25 35B40
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\textit{A. B. Vasil'eva} et al., in: Mathematical modelling and applied mathematics. Proceedings of the IMACS international conference, held in Moscow, USSR, June 18-23, 1990. Amsterdam etc.: North-Holland. 439--445 (1992; Zbl 0795.35036)
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Panasenko, G. P.

A numerical-asymptotic multicomponent averaging method for equations with contrast coefficients. (English. Russian original) Zbl 0718.73008

U.S.S.R. Comput. Math. Math. Phys. 30, No. 1, 178-186 (1990); translation from Zh. Vychisl. Mat. Mat. Fiz. 30, No. 2, 243-253 (1990).
Reviewer: Z.Dzygadło (Warszawa)
MSC:  74E05 65Z05 35C20 65M99 35B27
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\textit{G. P. Panasenko}, U.S.S.R. Comput. Math. Math. Phys. 30, No. 1, 178--186 (1990; Zbl 0718.73008); translation from Zh. Vychisl. Mat. Mat. Fiz. 30, No. 2, 243--253 (1990)
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