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Found 89 Documents (Results 1–89)

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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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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).
MSC:  34E15 34E05 34B15
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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).
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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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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).
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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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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).
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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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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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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).
MSC:  45J05 45L05
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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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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).
MSC:  34E05 34B15 34E20
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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).
MSC:  35K20 35B25 35B35
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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).
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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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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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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).
MSC:  35B25 35K20 35B10
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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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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).
MSC:  35B10 35B25 35K55
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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).
MSC:  34E05 34B15 34E15
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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).
MSC:  45M05 45G10 45J05
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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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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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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).
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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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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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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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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).
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