The similarity problem for J-nonnegative Sturm–Liouville operators IM Karabash, AS Kostenko, MM Malamud
Journal of Differential Equations 246 (3), 964-997, 2009
47 2009 Indefinite Sturm-Liouville operators (sgn x)(− d2 dx2+ q) with finite-zone potentials IM Karabash, MM Malamud
Operators and Matrices 1 (3), 301-368, 2007
45 2007 Bohl–Perron-type stability theorems for linear difference equations with infinite delay E Braverman, IM Karabash
Journal of Difference Equations and Applications 18 (5), 909-939, 2012
39 2012 Spectral properties of singular Sturm-Liouville operators with indefinite weight sgn x I Karabash, C Trunk
Proc. Roy. Soc. Edinburgh Sect. A 139, 483-503, 2009
32 2009 Abstract kinetic equations with positive collision operators IM Karabash
Spectral Theory in Inner Product Spaces and Applications, 175-195, 2008
27 2008 J-selfadjoint ordinary differential operators similar to selfadjoint operators IM Karabash
Methods of Functional Analysis and Topology 6 (2), 22-49, 2000
27 2000 Indefinite Sturm–Liouville operators with the singular critical point zero I Karabash, A Kostenko
Proceedings of the Royal Society of Edinburgh: Section A Mathematics 138 (04 …, 2008
21 2008 The similarity of a J-self-adjoint Sturm-Liouville operator with finite-gap potential to a self-adjoint operator IM Karabash, MM Malamud
Doklady. Mathematics 69 (2), 195-199, 2004
21 2004 On the nature of ill-posedness of the forward-backward heat equation M Chugunova, IM Karabash, SG Pyatkov
Integral Equations and Operator Theory 65 (3), 319-344, 2009
20 2009 Optimization of quasi-normal eigenvalues for 1-D wave equations in inhomogeneous media; description of optimal structures IM Karabash
Asymptotic Analysis 81 (3), 273-295, 2013
15 2013 Resonance free regions and non-Hermitian spectral optimization for Schr\" odinger point interactions S Albeverio, IM Karabash
arXiv preprint arXiv:1708.01334, 2017
11 2017 Pareto optimal structures producing resonances of minimal decay under L1-type constraints IM Karabash
Journal of Differential Equations 257 (2), 374-414, 2014
11 2014 On similarity of the operators type sgn x“− d2 dx2+ cδ” to a normal or to a selfadjoint one IM Karabash, AS Kostenko
Math. Notes 74 (1), 134-139, 2003
10 2003 A functional model, eigenvalues, and finite singular critical points for indefinite Sturm-Liouville operators IM Karabash
Oper. Theory Adv. Appl 203, 247-287, 2010
9 2010 On similarity of differential operators to selfadjoint ones IM Karabash
Candidate thesis, The Institute of Applied Mathemtics and Mechanics NASU …, 2005
9 2005 Similarity of Type Operators to Normal and Self-adjoint Operators IM Karabash, AS Kostenko
Mathematical Notes 74 (1), 127-131, 2003
9 * 2003 Nonlinear Bang–Bang Eigenproblems and Optimization of Resonances in Layered Cavities IM Karabash, OM Logachova, IV Verbytskyi
Integral Equations and Operator Theory 88 (1), 15-44, 2017
8 2017 Structured stability radii and exponential stability tests for Volterra difference systems E Braverman, IM Karabash
Computers & Mathematics with Applications 66 (11), 2259-2280, 2013
8 2013 On the similarity of a J-nonnegative Sturm-Liouville operator to a self-adjoint operator IM Karabash, AS Kostenko
Functional Analysis and Its Applications 43 (1), 65-68, 2009
8 2009 On J-self-adjoint differential operators similar to self-adjoint operators IM Karabash
Mathematical Notes 68 (5), 798-799, 2000
8 2000