singular perturbations, asymptotic solutions, boundary and internal layers.
UDC:
519.642.2, 519.624.2
Subject:
Singularly perturbed differential equations.
Main publications:
Nefedov N. N. and Nikitin A. G., Elaboration of the Asymptotic Method
of Differential Inequalities for Step-Like Solutions to Singularly Perturbed Integro-Differential Equations, Zh. Vychisl. Mat.
Mat. Fiz., 2001. vol. 41. no. 7. pp. 1057–1066.
Nefedov N. N. and Nikitin A. G., The Asymptotic Method of Differential
Inequalities for Singularly Perturbed Integro-Differential Equations, Differ. Uravn., 2000. vol. 36. no. 10. pp. 1398–404.
E. I. Nikulin, V. T. Volkov, A. G. Nikitin, “On contrast structures in a problem of the baretting effect
theory”, TMF, 220:1 (2024), 154–163; Theoret. and Math. Phys., 220:1 (2024), 1193–1200
2012
2.
N. N. Nefedov, A. G. Nikitin, “The initial boundary value problem for a nonlocal singularly perturbed reaction–diffusion equation”, Zh. Vychisl. Mat. Mat. Fiz., 52:6 (2012), 1042–1047; Comput. Math. Math. Phys., 52:6 (2012), 926–931
N. N. Nefedov, A. G. Nikitin, “Boundary and internal layers in the reaction-diffusion problem with a nonlocal inhibitor”, Zh. Vychisl. Mat. Mat. Fiz., 51:6 (2011), 1081–1090; Comput. Math. Math. Phys., 51:6 (2011), 1011–1019
N. N. Nefedov, A. G. Nikitin, “The Cauchy problem for a singularly perturbed integro-differential Fredholm equation”, Zh. Vychisl. Mat. Mat. Fiz., 47:4 (2007), 655–664; Comput. Math. Math. Phys., 47:4 (2007), 629–637
N. N. Nefedov, A. G. Nikitin, “Method of differential inequalities for step-like contrast structures in singularly perturbed integro-differential equations in the spatially two-dimensional case”, Differ. Uravn., 42:5 (2006), 690–700; Differ. Equ., 42:5 (2006), 739–749
N. N. Nefedov, A. G. Nikitin, T. A. Urazgil'dina, “The Cauchy problem for a singularly perturbed Volterra integro-differential equation”, Zh. Vychisl. Mat. Mat. Fiz., 46:5 (2006), 805–812; Comput. Math. Math. Phys., 46:5 (2006), 768–775
N. N. Nefedov, A. G. Nikitin, “Asymptotic stability of contrasting structures of step-like data type in singularly perturbed integro-differential equations in two-dimensional case”, Matem. Mod., 13:12 (2001), 65–74
N. N. Nefëdov, A. G. Nikitin, “Development of the asymptotic method of differential inequalities for step-type solutions of singularly perturbed integro-differential equations”, Zh. Vychisl. Mat. Mat. Fiz., 41:7 (2001), 1057–1066; Comput. Math. Math. Phys., 41:7 (2001), 1005–1014
N. N. Nefedov, A. G. Nikitin, “The asymptotic method of differential inequalities for singularly perturbed integro-differential equations”, Differ. Uravn., 36:10 (2000), 1398–1404; Differ. Equ., 36:10 (2000), 1544–1550
A. G. Nikitin, A. P. Petrov, “Passage to the limit with respect to a small parameter for the eigenvalues of a singularly perturbed Sturm–Liouville problem”, Differ. Uravn., 35:6 (1999), 843–845; Differ. Equ., 35:6 (1999), 850–853
11.
A. G. Nikitin, “On the principal eigenfunction of a singularly perturbed Sturm–Liouville problem”, Zh. Vychisl. Mat. Mat. Fiz., 39:4 (1999), 588–591; Comput. Math. Math. Phys., 39:4 (1999), 560–563
A. B. Vasil'eva, A. G. Nikitin, “On the stability of periodic contrast structures in the spatially two-dimensional case”, Differ. Uravn., 32:10 (1996), 1355–1361; Differ. Equ., 32:10 (1996), 1351–1357
A. B. Vasil'eva, A. G. Nikitin, A. P. Petrov, “The asymptotic method of investigation of contrast structures and it application to the theory of hydromagnetic dynamo”, Matem. Mod., 7:2 (1995), 61–71
A. A. Kudryavtsev, A. G. Nikitin, “Recombination kinetics of atomic ions in dense low-temperature nonisothermal plasmas”, TVT, 29:4 (1991), 625–632; High Temperature, 29:4 (1991), 483–488
1990
15.
V. F. Butuzov, A. G. Nikitin, “A singularly perturbed system of equations of elliptic type”, Differ. Uravn., 26:2 (1990), 271–278; Differ. Equ., 26:2 (1990), 207–213
1988
16.
V. F. Butuzov, A. G. Nikitin, “An angular boundary layer in the asymptotics of the solution of a singularly perturbed system of equations of elliptic type”, Differ. Uravn., 24:2 (1988), 343–345
1981
17.
V. F. Butuzov, A. G. Nikitin, “On a system of singularly perturbed equations of elliptic type”, Differ. Uravn., 17:10 (1981), 1779–1791