Irina Kmit
Contact
Humboldt-Universität zu Berlin
Unter den Linden 6
D-10099 Berlin
e-mail: irina.kmit at hu-berlin dot de
Teaching in SoSe24
Seminar: Introduction to Nonlinear Dynamics
Research Seminar
Research Projects
Volkswagen Foundation project From Modeling and Analysis to Approximation (2020-2023)
Volkswagen Foundation project Modeling, Analysis, and Approximation Theory Toward Applications in Tomography and Inverse Problems (2016-2019)
Alexander von Humboldt Foundation project Time-Periodic Problems for Parameter Dependent Hyperbolic PDEs (2009-2011)
Workshops and conferences
Modeling and Analysis to Approximation and Fast Algorithms (Hasenwinkel, 2-6 September 2023)
Modeling and Analysis to Approximation and Fast Algorithms (Hasenwinkel, 2-4 December 2022)
Analytical Modeling and Approximation Methods (Berlin, 4-8 March 2020)
Modeling, Analysis, and Approximation Theory Toward Applications in Tomography and Inverse Problems (Berlin, 20-21 August 2018)
Publications
I. Kmit and V.Tkachenko. On the bounded smooth solutions to exponentially stable linear nonautonomous hyperbolic systems, submitted (2023).
I. Kmit and L. Recke. Regularity of Time-Periodic Solutions to Autonomous Semilinear Hyperbolic PDEs, J. Math. Anal. Appl. 529 (2024).
I. Kmit and L. Recke. Forced Frequency Locking for Semilinear Dissipative Hyperbolic PDEs, Journal of Dynamics and Differential Equations (2023),
doi: https://link.springer.com/article/10.1007/s10884-022-10236-0.I. Kmit. 1D Hyperbolic Systems with Nonlinear Boundary Conditions II: Criteria for Finite Time Stability. In Analysis, Applications, and Computations: Trends in Mathematics, Birkhäuser, Cham, 439–453 (2023).
I.Kmit and L.Recke. Hopf Bifurcation for General 1D Semilinear Wave Equations with Delay. Journal of Dynamics and Differential Equations 34: 1393-1431 (2022).
I.Kmit, L.Recke, and V.Tkachenko. Bounded and Almost Periodic Solvability of Nonautonomous Quasilinear Hyperbolic Systems. J. Evolution Equations 21: 4171-4212 (2021).
I. Kmit and N. Lyul'ko. Finite Time Stabilization of Nonautonomous First Order Hyperbolic Systems. SIAM J. Control and Optimization 59(5): 3179-3202 (2021).
I.Kmit, L.Recke, and V.Tkachenko. Classical Bounded and Almost Periodic Solutions to Quasilinear First-Order Hyperbolic Systems in a Strip. J. Differential Equations 269(3): 2532-2579 (2020).
I. Kmit and N. Lyul'ko. Perturbations of superstable linear hyperbolic systems. J. Math. Anal. Appl. 460(2): 838–862 (2018).
R. Klyuchnyk and I. Kmit. Bounded Solutions to Boundary Value Hyperbolic Problems. J. Math. Sci. 228(3): 263–275 (2018).
I. Kmit and N. Lyul'ko. Exponential stability of solutions to perturbed superstable wave equations. Journal of Physics: Conference series, Vol. 894, N1 (2017).
R. Klyuchnyk, I. Kmit and L. Recke. Exponential Dichotomy for Hyperbolic Systems with Periodic Boundary Conditions. J. Differential Equations 262:2493–2520 (2017).
I. Kmit. Smoothing property of solutions to nonlocal hyperbolic problems. Nonclassical problems of theory of differential equations: Collection of papers dedicated to 80th birthday of B. Ptashnyk. Lviv: IPPMM, National Academy of Sciences of Ukraine, 123-132 (2017). http://iapmm.lviv.ua/monograph/Zbirnyk_PT.pdf
I. Kmit and R. Klyuchnyk. Fredholm property of nonlocal problems for integro-differential hyperbolic systems. Electron. J. Qual. Theory Differ. Equ. 96:1–11 (2016).
I. Kmit and R. Klyuchnyk. Fredholm solvability of time-periodic boundary value hyperbolic problems. J. Math. Anal. Appl. 442(2): 804–819 (2016).
I.Kmit and L.Recke. Fredholm alternative and solution regularity for time-periodic hyperbolic systems. Differential and Integral Equations 29(11/12): 1049–1070 (2016).
I.Kmit and L.Recke. Solution regularity and smooth dependence for abstract equations and applications to hyperbolic PDEs. J. Differential Equations 259(11): 6287–6337 (2015).
I.Kmit and L.Recke. Time-periodic second-order hyperbolic equations: Fredholm solvability, regularity, and smooth dependence. Operator Theory: Advances and Applications 245:147--181, Basel: Birkhäuser (2015).
I.Kmit and L.Recke. Hopf bifurcation for semilinear dissipative hyperbolic systems. J. Differential Equations 257(1):264-309 (2014).
I.Kmit. Smoothing effect and Fredholm property for first-order hyperbolic PDEs. Operator Theory: Advances and Applications 231:219-238, Basel: Birkhäuser (2013).
I.Kmit. Fredholm Solvability of a Periodic Neumann Problem for a Linear Telegraph Equation. Ukrainian Math. J. 65(3):423-434 (2013).
I.Kmit, L.Recke, and V.Tkachenko. Robustness of the exponential dichotomies of boundary-value problems for the general first-order hyperbolic system. Ukrainian Math. J. 65(2):260-276 (2013).
I.Kmit and L.Recke. Fredholmness and smooth dependence for linear time-periodic hyperbolic systems. J. Differential Equations, 252(2):1962-1986 (2012).
I.Kmit. On the Fredholm solvability for a class of multidimensional hyperbolic problems. J. Math. Sci. 185(6):778-791 (2012).
I.Kmit. Smoothing solutions to initial-boundary problems for first-order hyperbolic systems. Applicable Analysis 90(11-12):1609-1634 (2011).
I.Kmit. C1-smoothness of Nemytskii operators on Sobolev-type spaces of periodic functions. Commentat. Math. Univ. Carol. 52(4):507-517 (2011).
I.Kmit. Associated distributions for a semilinear hyperbolic problem with singular coefficients. Integral Transforms Spec. Funct. 20(3-4):177-183 (2009).
I.Kmit and B.Y.Ptashnyk. Well-posedness of boundary value problems for multi-dimensional hyperbolic systems. Ukr. Math. J. 60(2):221-234 (2008).
I.Kmit, M.Kunzinger, and R.Steinbauer. Generalized solutions of the Vlasov-Poisson system with singular data. J. Math. Anal. Appl. 340(1):575-587 (2008).
I.Kmit. Classical solvability of nonlinear initial-boundary problems for first-order hyperbolic systems. Int. J. Dyn. Syst. Differ. Equ. 1(3):191-195 (2008).
I.Kmit and L.Recke. Fredholm alternative for periodic-Dirichlet problems for linear hyperbolic systems. J. Math. Anal. Appl. 335(1): 355-370 (2007).
I.Kmit. Linear hyperbolic problems in the whole scale of Sobolev-type spaces of periodic functions. Commentat. Math. Univ. Carol. 48(4):631-645 (2007).
I.Kmit. A distributional solution to a hyperbolic problem arising in population dynamics. Electron. J. Differ. Equ. Paper No. 132: 23 p. (2007).
I.Kmit. Generalized solutions to hyperbolic systems with nonlinear conditions and strongly singular data. Integral Transforms Spec. Funct. 17(2-3):177-183 (2006).
I.Kmit. Generalized solutions to singular initial-boundary hyperbolic problems with non-Lipshitz nonlinearities. Bull., Cl. Sci. Math. Nat., Sci. Math. 133(31):87-99 (2006).
I.Kmit. Initial-boundary problems for semilinear hyperbolic systems with singular coefficients. Nonlinear Bound. Value Probl. 15:74-84 (2005).
I.Kmit. Delta waves for a strongly singular initial-boundary hyperbolic problem with integral boundary condition. Z. Anal. Anwend. 24(1):29-74 (2005).
T.O.Banakh, I.Ya.Kmit, and O.V.Verbitsky. On asymmetric colorings of integer grids. Ars Comb. 62:257-271 (2002).
R.Hryniv and I.Kmit. On a nonclassical problem for some quasilinear hyperbolic equation. Nonlinear Analysis 51(8):1405-1419 (2002).
I.Kmit and G.Hörmann. Semilinear hyperbolic systems with singular non-local boundary conditions: Reflection of singularities and delta waves. Z. Anal. Anwend. 20(3):637-659 (2001).
I.Kmit and R.Hryniv. On a nonclassical problem for some nonlinear hyperbolic equation. Nonlinear Bound. Value Probl. 11:86-93 (2001).
Book
B.Ptashnyk, V.Ilkiv, I.Kmit, and V.Polishchuk. Nonlocal Boundary Value Problems for Partial Differential Equations. Naukova Dumka, Kyiv (2002), 415 pages (in Ukrainian).