Edit Profile (opens in new tab) Sakhnovych, Lev Aronovych Co-Author Distance Author ID: sakhnovych.lev-aronovych Published as: Sakhnovich, L. A.; Sakhnovich, Lev; Sakhnovich, Lev A.; Sakhnovich, L.; Sachnovič, L. A.; Sachnovic, L. A.; Sakhnovich, Lev Aronovich more...less Further Spellings: Sachnowitsch, Lew Aronowitsch; Sachnogowitsch, Lew Aronowitsch; Сахнович Лев Аронович External Links: MGP · Wikidata · Math-Net.Ru · dblp · GND Documents Indexed: 215 Publications since 1957, including 6 Books and 24 Additional arXiv Preprints 1 Contribution as Editor · 2 Further Contributions Reviewing Activity: 220 Reviews Biographic References: 4 Publications Co-Authors: 27 Co-Authors with 41 Joint Publications 626 Co-Co-Authors all top 5 Co-Authors 175 single-authored 10 Rovnyak, James 6 Ivanchenko, T. S. 6 Pozin, S. M. 3 Olshevsky, Vadim 3 Sakhnovich, Alexander L. 2 Arov, Damir Zyamovich 2 Clark, Douglas Napier 2 Douglas, Ronald George 2 Faddeev, Lyudvig Dmitrievich 2 Fritzsche, Bernd 2 Gesztesy, Fritz 2 Gohberg, Israel 2 Helson, Henry 2 Kirstein, Bernd 2 Leiterer, Jürgen 2 McKean, Henry P. jun. 2 Naboko, Serguei N. 2 Nikol’skiĭ, Nikolaĭ Kapitonovich 2 Pavlov, Boris Sergeevich 2 Peller, Vladimir Vsevolodovich 2 Putnam, Calvin R. 2 Smyth, M. R. F. 2 Szőkefalvi-Nagy, Béla 2 Vasyunin, Vasiliĭ Ivanovich 2 Vershik, Anatoliĭ Moiseevich 2 West, Timothy Trevor 1 Alpay, Daniel Aron 1 Bella, Tom 1 Belokolos, Eugene D. 1 Bolotnikov, Vladimir 1 Dubovoj, Vladimir Kirillovich 1 Dym, Harry 1 Ginzburg, Yu. P. 1 Heinig, Georg 1 Helton, John William 1 Katsnel’son, Viktor Èmmanuilovich 1 Kogan, Kh. M. 1 Livšic, Mikhail Samuilovich (Moshe) 1 Makarov, Konstantin A. 1 Nudelman, Adolf Abramovich 1 Roitberg, Inna Ya. 1 Tidniuk, I. F. 1 Tydnyuk, I. F. all top 5 Serials 9 Ukrainian Mathematical Journal 9 Ukraïns’kyĭ Matematychnyĭ Zhurnal 9 Functional Analysis and its Applications 9 Matematicheskiĭ Sbornik. Novaya Seriya 9 Soviet Mathematics. Doklady 8 Translations. Series 2. American Mathematical Society 5 Integral Equations and Operator Theory 5 Izvestiya Akademii Nauk SSSR. Seriya Matematicheskaya 5 St. Petersburg Mathematical Journal 5 Operator Theory: Advances and Applications 4 Theoretical and Mathematical Physics 4 Uspekhi Matematicheskikh Nauk [N. S.] 4 Siberian Mathematical Journal 4 Linear Algebra and its Applications 4 Teoriya Funktsiĭ, Funktsional’nyĭ Analiz i ikh Prilozheniya 3 Physics Letters. A 3 Mathematische Nachrichten 3 Sibirskiĭ Matematicheskiĭ Zhurnal 3 Complex Analysis and Operator Theory 2 Doklady Akademii Nauk SSSR 2 Inverse Problems 2 Izvestiya Vysshikh Uchebnykh Zavedeniĭ, Matematika 2 Russian Mathematical Surveys 2 Funktsional’nyĭ Analiz i ego Prilozheniya 2 Journal of Functional Analysis 2 Journal of Soviet Mathematics 2 Akademiya Nauk Moldavskoĭ SSR. Ordena Trudovogo Krasnogo Znameni Institut Matematiki s Vychislitel’nym Tsentrom. Matematicheskie Issledovaniya 2 Soviet Mathematics 2 Journal of Operator Theory 2 Soviet Journal of Contemporary Mathematical Analysis. Armenian Academy of Sciences 2 Algebra i Analiz 2 Mathematics of the USSR, Sbornik 2 Russian Mathematics 2 Russian Journal of Mathematical Physics 2 ELA. The Electronic Journal of Linear Algebra 2 Central European Journal of Mathematics 1 Doklady Akademii Nauk Ukrainskoĭ SSR, Seriya A 1 IEEE Transactions on Information Theory 1 Journal of Mathematical Analysis and Applications 1 Rocky Mountain Journal of Mathematics 1 Teoreticheskaya i Matematicheskaya Fizika 1 Teoriya Veroyatnosteĭ i eë Primeneniya 1 Reviews in Mathematical Physics 1 Theory of Probability and its Applications 1 Differentsial’nye Uravneniya 1 Mathematics of the USSR. Izvestiya 1 Transactions of the Moscow Mathematical Society 1 Trudy Moskovskogo Matematicheskogo Obshchestva 1 Izvestiya Akademii Nauk Armyanskoi SSR. Matematika 1 Matematicheskaya Fizika, Analiz, Geometriya 1 Methods of Functional Analysis and Topology 1 De Gruyter Studies in Mathematics 1 Mathematics and its Applications (Dordrecht) 1 Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta Imeni V. A. Steklova 1 Operators and Matrices all top 5 Fields 93 Operator theory (47-XX) 56 Ordinary differential equations (34-XX) 31 Integral equations (45-XX) 22 Probability theory and stochastic processes (60-XX) 21 Partial differential equations (35-XX) 18 Quantum theory (81-XX) 11 Functions of a complex variable (30-XX) 10 Linear and multilinear algebra; matrix theory (15-XX) 9 Statistical mechanics, structure of matter (82-XX) 8 Functional analysis (46-XX) 7 Dynamical systems and ergodic theory (37-XX) 6 Real functions (26-XX) 5 Difference and functional equations (39-XX) 5 Systems theory; control (93-XX) 4 Approximations and expansions (41-XX) 4 Harmonic analysis on Euclidean spaces (42-XX) 3 General and overarching topics; collections (00-XX) 3 History and biography (01-XX) 3 Global analysis, analysis on manifolds (58-XX) 3 Mechanics of deformable solids (74-XX) 3 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 2 Special functions (33-XX) 2 Geometry (51-XX) 2 Statistics (62-XX) 2 Information and communication theory, circuits (94-XX) 1 Combinatorics (05-XX) 1 Number theory (11-XX) 1 Sequences, series, summability (40-XX) 1 Numerical analysis (65-XX) 1 Fluid mechanics (76-XX) 1 Optics, electromagnetic theory (78-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 118 Publications have been cited 628 times in 367 Documents Cited by ▼ Year ▼ Spectral theory of canonical differential systems. Method of operator identities. Zbl 0918.47003 Sakhnovich, Lev A. 64 1999 Interpolation theory and its applications. Zbl 0894.41001 Sakhnovich, L. A. 49 1997 Half-inverse problems on the finite interval. Zbl 0988.34021 Sakhnovich, L. 44 2001 Factorization problems and operator identities. Zbl 0613.47017 Sakhnovich, L. A. 42 1986 Inverse problems and nonlinear evolution equations. Solutions, Darboux matrices and Weyl-Titchmarsh functions. Zbl 1283.47003 Sakhnovich, Alexander L.; Sakhnovich, Lev A.; Roitberg, Inna Ya. 39 2013 On the factorization of an operator-valued transfer function. Zbl 0342.93022 Sakhnovich, L. A. 32 1976 Spectral theory of a class of canonical differential systems. Zbl 0959.34069 Sakhnovich, L. A. 16 2000 Integral equations with difference kernels on finite intervals. Zbl 0841.45003 Sakhnovich, L. A. 14 1996 On an operator approach to interpolation problems for Stieltjes functions. Zbl 0952.47016 Bolotnikov, V.; Sakhnovich, L. 14 1999 Equations with a difference kernel on a finite interval. Zbl 0462.45008 Sakhnovich, L. A. 14 1980 Dissipative Operatoren mit absolut-stetigem Spektrum. Zbl 0179.46802 Sakhnovich, L. A. 13 1968 Inverse problem for differential operators of order \(n>2\) with analytic coefficients. Zbl 0084.28403 Sakhnovich, L. A. 12 1958 An operator approach to the Potapov scheme for the solution of interpolation problems. Zbl 0835.47012 Ivanchenko, T. S.; Sakhnovich, L. A. 11 1994 On a class of canonical systems on half-axis. Zbl 0919.47039 Sakhnovich, L. A. 11 1998 Operators which are similar to unitary operators with absolutely continuous spectrum. Zbl 0183.41803 Sakhnovich, L. A. 10 1968 Dissipative operators with absolutely continuous spectrum. Zbl 0193.43403 Sakhnovich, L. A. 9 1968 On an integral equation with a kernel dependent on the difference of the arguments. (Über eine Integralgleichung mit einem Kern, der von der Differenz der Argumente abhängt.) Zbl 0305.45004 Sakhnovich, L. A. 8 1973 The spectral analysis of Volterra operators and some inverse problems. Zbl 0079.31801 Sachnovič, L. A. 8 1957 Method of operator identities and problems of analysis. Zbl 0823.47017 Sakhnovich, L. A. 7 1993 Matrix and operator valued functions. The Vladimir Petrovich Potapov memorial volume. Zbl 0797.00015 7 1994 On Krein’s differential system and its generalization. Zbl 1106.34055 Sakhnovich, Lev 6 2006 Integral equations with difference kernels on finite intervals. 2nd revised and extended edition. Zbl 1334.45001 Sakhnovich, Lev A. 5 2015 Matrix-valued generalizations of the theorems of Borg and Hochstadt. Zbl 1070.47037 Belokolos, Eugene D.; Gesztesy, Fritz; Makarov, Konstantin A.; Sakhnovich, Lev A. 5 2003 The invariance principle for generalized wave operators. Zbl 0234.47003 Sakhnovich, L. A. 5 1971 Spektralanalyse der im Raum der Vektorfunktionen \(L_ m^ 2 [O,l]\) gegebenen Volterraschen Operatoren. Zbl 0132.10303 Sakhnovich, L. A. 5 1964 A study of the “triangular form” of non-selfadjoint operators. (Untersuchung des ,,Dreieckmodells” der nicht selbstadjungierten Operatoren.) Zbl 0144.17601 Sakhnovich, L. A. 5 1959 An operator approach to V.P. Potapov’s scheme for the investigation of interpolation problems. Zbl 0701.47019 Ivanchenko, T. S.; Sakhnovich, L. A. 5 1987 Equations with a difference kernel on a finite interval. Zbl 0444.45008 Sakhnovich, L. A. 5 1980 Ranks of Hadamard matrices and equivalence of Sylvester-Hadamard and pseudo-noise matrices. Zbl 1136.15016 Bella, Tom; Olshevsky, Vadim; Sakhnovich, Lev 5 2008 Evolution of spectral data and nonlinear equations. Zbl 0683.35068 Sakhnovich, L. A. 5 1988 Efficient solution of the sh-Gordon equation. Zbl 0729.35129 Sakhnovich, L. A.; Tydnyuk, I. F. 5 1990 The deficiency indices of a system of first-order differential equations. Zbl 0942.34071 Sakhnovich, L. A. 4 1997 Generalized wave operators. Zbl 0215.21001 Sakhnovich, L. A. 4 1970 Operator identities in the theory of interpolation problems. Zbl 0633.30032 Ivanchenko, T. S.; Sakhnovich, L. A. 4 1987 Asymptotics of the spectrum of anharmonic oscillator. Zbl 0457.34033 Sakhnovich, L. A. 4 1981 Explicit rational solutions of Knizhnik-Zamolodchikov equation. Zbl 1153.34054 Sakhnovich, Lev 4 2008 On a hypothesis concerning Hamiltonians of canonical systems. Zbl 0839.34047 Sakhnovich, L. A. 3 1994 Nonlinear equations and inverse spectral problems on the axis. Zbl 0843.34021 Sakhnovich, L. A. 3 1995 Inverse scattering problem for continuous transmission lines with rational reflection coefficient function. Zbl 0859.34063 Alpay, D.; Gohberg, I.; Sakhnovich, L. 3 1996 On properties of the discrete and continuous spectrum for the radial Dirac equation. Zbl 0940.34067 Sakhnovich, L. A. 3 1996 Spectral problems for some indefinite cases of canonical differential equations. Zbl 1072.34011 Rovnyak, J.; Sakhnovich, L. A. 3 2004 \((S+N)\)-triangular operators: spectral properties and important examples. Zbl 1356.47044 Sakhnovich, Lev 3 2016 Stationary and dynamical scattering problems and ergodic-type theorems. Zbl 1375.81235 Sakhnovich, Lev 3 2017 Inverse problems for equations systems. Zbl 0831.47037 Sakhnovich, L. A. 3 1994 Some indefinite cases of spectral problems for canonical systems of difference equations. Zbl 1001.39004 Rovnyak, J.; Sakhnovich, L. A. 3 2002 A class of matrix-valued Schrödinger operators with prescribed finite-band spectra. Zbl 1055.34016 Gesztesy, Fritz; Sakhnovich, Lev A. 3 2003 On similarity of linear operators. Zbl 0232.47004 Sakhnovich, L. A. 3 1971 On triangular factorization of positive operators. Zbl 1165.47016 Sakhnovich, Lev A. 3 2008 Matched filtering for generalized stationary processes. Zbl 1310.94039 Olshevsky, Vadim; Sakhnovich, Lev 3 2005 Weyl-Titchmarsh matrix functions and spectrum of non-selfadjoint Dirac type equation. Zbl 1080.34009 Sakhnovich, L. 2 2004 Extremal trigonometric and power polynomials in several variables. Zbl 1076.42501 Sakhnovich, L. A. 2 2004 On dual canonical systems and dual matrix string equations. Zbl 0996.34022 Dym, Harry; Sakhnovich, Lev A. 2 2001 On reducing the canonical system to two dual differential systems. Zbl 0991.34064 Sakhnovich, L. 2 2001 The generalized scattering problems: ergodic type theorems. Zbl 1390.34238 Sakhnovich, Lev 2 2018 Classic spectral problems. Zbl 0903.34019 Sakhnovich, L. A. 2 1998 Integrable nonlinear equations on a half-axis. Zbl 0779.35103 Sakhnovich, L. A. 2 1991 Interpolation problems, inverse spectral problems and nonlinear equations. Zbl 0793.47012 Sakhnovich, L. A. 2 1992 On the Kreĭn-Langer integral representation of generalized Nevanlinna functions. Zbl 1059.47014 Rovnyak, J.; Sakhnovich, L. A. 2 2004 On a class of integral equations that are solvable in closed form. (Über eine Klasse von Integralgleichungen, die in geschlossener Form lösbar sind.) Zbl 0305.45011 Sakhnovich, L. A. 2 1974 Spektralanalysis der Operatoren von der Form \(Kf= \int_ 0^ x f(t) k (x-t) dt\). Zbl 0080.08901 Sachnovic, L. A. 2 1958 Nichtunitäre Operatoren mit absolut stetigem Spektrum. Zbl 0174.19403 Sakhnovich, L. A. 2 1969 Extremal problems of interpolation theory. Zbl 1094.47026 Helton, J. William; Sakhnovich, L. A. 2 2005 Spectral analysis of a class of canonical differential systems. Zbl 0908.34007 Sakhnovich, L. A. 2 1998 Systems of equations with difference kernels. Zbl 0443.45009 Sakhnovich, L. A. 2 1980 Inverse problems for canonical differential equations with singularities. Zbl 1146.34008 Rovnyak, James; Sakhnovich, Lev A. 2 2008 Meromorphic solutions of linear differential systems, Painlevé type functions. Zbl 1114.34068 Sakhnovich, Lev 2 2007 Pseudospectral functions for canonical differential systems. Zbl 1185.34126 Rovnyak, J.; Sakhnovich, L. A. 2 2009 Pseudospectral functions for canonical differential systems. II. Zbl 1259.34083 Rovnyak, J.; Sakhnovich, L. A. 2 2012 Lévy processes, integral equations, statistical physics. Connections and interactions. Zbl 1258.45001 Sakhnovich, Lev A. 2 2012 Explicit formulas for spectral characteristics and solutions of the sh- Gordon equation. Zbl 0737.35106 Sakhnovich, L. A. 1 1990 The sinh-Gordon equation. Zbl 0747.35041 Sakhnovich, L. A. 1 1991 Integrable nonlinear equations on a halfaxis. Zbl 0766.35046 Sakhnovich, L. A. 1 1991 Dirac equation: the stationary and dynamical scattering problems. Zbl 1405.34071 Sakhnovich, Lev 1 2018 Paired Cauchy matrices. Zbl 0873.15015 Heinig, G.; Sakhnovich, L. A.; Tidniuk, I. F. 1 1997 Spectral problems on half-axis. Zbl 0926.34016 Sakhnovich, L. A. 1 1996 Extremal trigonometric and power polynomials in several variables. Zbl 1063.42006 Sakhnovich, L. A. 1 2004 Weyl-Titchmarsh matrix functions for matrix Dirac-type equations (non-self-adjoint case). Zbl 1044.35067 Sakhnovich, L. 1 2002 Abel’s integral equations in the theory of stable processes. Zbl 0567.45005 Sakhnovich, L. A. 1 1984 Two-sided estimation of the smallest eigenvalue of an operator characterizing stable processes. Zbl 0774.60019 Pozin, S. M.; Sakhnovich, L. A. 1 1991 On singular explicit solutions of the modified KdV equation. Zbl 0836.35139 Sakhnovich, L. A. 1 1992 Operator approach to interpolation problem. Zbl 0829.47013 Ivanchenko, T. S.; Sakhnovich, L. A. 1 1994 On the spectral theory of a generalized differential Krein system. Zbl 0987.47008 Sakhnovich, L. A. 1 2000 On the spectrum of the unharmonic oscillator. Zbl 0189.39101 Sakhnovich, L. A. 1 1964 Spectral analysis of Volterra operators defined on the vector function space \(L_ m^ 2 [0,1]\). Zbl 0192.23103 Sakhnovich, L. A. 1 1967 Generalized wave operators. (Verallgemeinerte Wellenoperatoren.) Zbl 0213.14603 Sakhnovich, L. A. 1 1970 A semi-inverse problem. Zbl 0237.34041 Sakhnovich, L. A. 1 1963 Similarity of operators. Zbl 0261.47007 Sakhnovich, L. A. 1 1973 On the \(J\)-unitary dilation of a bounded operator. Zbl 0302.47012 Sakhnovich, L. A. 1 1974 Über die Reduktion Volterrascher Operatoren auf einfachste Form und inverse Probleme. Zbl 0078.28202 Sachnovic, L. A. 1 1957 Reduktion eines nicht-selbstadjungierten Operators mit stetigem Spektrum auf Diagonalform. Zbl 0087.11103 Sachnovič, L. A. 1 1958 Methode des Transformationsoperators für Gleichungen höherer Ordnungen. Zbl 0101.06202 Sakhnovich, L. A. 1 1961 On the inverse problem for fourth-order equations. (Über das inverse Problem für Gleichungen vierter Ordnung.) Zbl 0116.29203 Sakhnovich, L. A. 1 1962 Necessary conditions for the existence of a transformation operator for fourth-order equations. (Notwendige Bedingungen für die Existenz eines transformierenden Operators für Gleichungen vierter Ordnung.) Zbl 0127.30402 Sakhnovich, L. A. 1 1961 Über das Spektrum der radialen Schrödingergleichung in einer Umgebung der Null. Zbl 0132.06804 Sakhnovich, L. A. 1 1965 On the Ritz formula and the quantum defects of the spectrum for a radial Schrödinger equation. (Über die Ritzsche Formel und die Quantendefekte des Spektrums der radialen Schrödingergleichung.) Zbl 0144.47801 Sakhnovich, L. A. 1 1966 Über dissipative Volterraoperatoren. Zbl 0169.44901 Sakhnovich, L. A. 1 1968 Dissipative Volterra operators. Zbl 0181.12201 Sakhnovich, L. A. 1 1969 Nonunitary operators with absolutely continuous spectrum on the unit circle. Zbl 0183.41802 Sakhnovich, L. A. 1 1968 Inverse spectral problems for systems of equations. Zbl 0617.47012 Sakhnovich, L. A. 1 1985 Spectral problems for canonical systems of equations on the axis. Zbl 0913.34068 Sakhnovich, Lev A. 1 1994 The generalized scattering problems: ergodic type theorems. Zbl 1390.34238 Sakhnovich, Lev 2 2018 Dirac equation: the stationary and dynamical scattering problems. Zbl 1405.34071 Sakhnovich, Lev 1 2018 Stationary and dynamical scattering problems and ergodic-type theorems. Zbl 1375.81235 Sakhnovich, Lev 3 2017 \((S+N)\)-triangular operators: spectral properties and important examples. Zbl 1356.47044 Sakhnovich, Lev 3 2016 Integral equations with difference kernels on finite intervals. 2nd revised and extended edition. Zbl 1334.45001 Sakhnovich, Lev A. 5 2015 On indefinite cases of operator identities which arise in interpolation theory. II. Zbl 06767996 Rovnyak, J.; Sakhnovich, L. A. 1 2015 Inverse problems and nonlinear evolution equations. Solutions, Darboux matrices and Weyl-Titchmarsh functions. Zbl 1283.47003 Sakhnovich, Alexander L.; Sakhnovich, Lev A.; Roitberg, Inna Ya. 39 2013 Pseudospectral functions for canonical differential systems. II. Zbl 1259.34083 Rovnyak, J.; Sakhnovich, L. A. 2 2012 Lévy processes, integral equations, statistical physics. Connections and interactions. Zbl 1258.45001 Sakhnovich, Lev A. 2 2012 Inhomogeneous Boltzmann equations: distance, asymptotics and comparison of the classical and quantum cases. Zbl 1266.35123 Sakhnovich, Lev 1 2012 Effective construction of a class of positive operators in Hilbert space, which do not admit triangular factorization. Zbl 1267.47030 Sakhnovich, Lev 1 2012 The Kreĭn differential system and integral operators of random matrix theory. Zbl 1235.34230 Sakhnovich, L. 1 2011 Integral equations in the theory of Levy processes. Zbl 1196.60085 Sakhnovich, Lev 1 2010 Rationality of the Knizhnik-Zamolodchikov equation solution. Zbl 1247.35002 Sakhnovich, L. A. 1 2010 On extremal problems of interpolation theory with unique solution. Zbl 1216.47022 Fritzsche, Bernd; Kirstein, Bernd; Sakhnovich, Lev A. 1 2010 Pseudospectral functions for canonical differential systems. Zbl 1185.34126 Rovnyak, J.; Sakhnovich, L. A. 2 2009 On the solutions of Knizhnik-Zamolodchikov system. Zbl 1179.35276 Sakhnovich, Lev 1 2009 Ranks of Hadamard matrices and equivalence of Sylvester-Hadamard and pseudo-noise matrices. Zbl 1136.15016 Bella, Tom; Olshevsky, Vadim; Sakhnovich, Lev 5 2008 Explicit rational solutions of Knizhnik-Zamolodchikov equation. Zbl 1153.34054 Sakhnovich, Lev 4 2008 On triangular factorization of positive operators. Zbl 1165.47016 Sakhnovich, Lev A. 3 2008 Inverse problems for canonical differential equations with singularities. Zbl 1146.34008 Rovnyak, James; Sakhnovich, Lev A. 2 2008 Meromorphic solutions of linear differential systems, Painlevé type functions. Zbl 1114.34068 Sakhnovich, Lev 2 2007 Integrable operators and canonical differential systems. Zbl 1162.15018 Sakhnovich, Lev 1 2007 On Krein’s differential system and its generalization. Zbl 1106.34055 Sakhnovich, Lev 6 2006 On indefinite cases of operator identities which arise in interpolation theory. Zbl 1124.47012 Rovnyak, James; Sakhnovich, Lev A. 1 2006 Matched filtering for generalized stationary processes. Zbl 1310.94039 Olshevsky, Vadim; Sakhnovich, Lev 3 2005 Extremal problems of interpolation theory. Zbl 1094.47026 Helton, J. William; Sakhnovich, L. A. 2 2005 Optimal prediction of generalized stationary processes. Zbl 1102.93038 Olshevsky, Vadim; Sakhnovich, Lev 1 2005 Spectral problems for some indefinite cases of canonical differential equations. Zbl 1072.34011 Rovnyak, J.; Sakhnovich, L. A. 3 2004 Weyl-Titchmarsh matrix functions and spectrum of non-selfadjoint Dirac type equation. Zbl 1080.34009 Sakhnovich, L. 2 2004 Extremal trigonometric and power polynomials in several variables. Zbl 1076.42501 Sakhnovich, L. A. 2 2004 On the Kreĭn-Langer integral representation of generalized Nevanlinna functions. Zbl 1059.47014 Rovnyak, J.; Sakhnovich, L. A. 2 2004 Extremal trigonometric and power polynomials in several variables. Zbl 1063.42006 Sakhnovich, L. A. 1 2004 Matrix-valued generalizations of the theorems of Borg and Hochstadt. Zbl 1070.47037 Belokolos, Eugene D.; Gesztesy, Fritz; Makarov, Konstantin A.; Sakhnovich, Lev A. 5 2003 A class of matrix-valued Schrödinger operators with prescribed finite-band spectra. Zbl 1055.34016 Gesztesy, Fritz; Sakhnovich, Lev A. 3 2003 Some indefinite cases of spectral problems for canonical systems of difference equations. Zbl 1001.39004 Rovnyak, J.; Sakhnovich, L. A. 3 2002 Weyl-Titchmarsh matrix functions for matrix Dirac-type equations (non-self-adjoint case). Zbl 1044.35067 Sakhnovich, L. 1 2002 Half-inverse problems on the finite interval. Zbl 0988.34021 Sakhnovich, L. 44 2001 On dual canonical systems and dual matrix string equations. Zbl 0996.34022 Dym, Harry; Sakhnovich, Lev A. 2 2001 On reducing the canonical system to two dual differential systems. Zbl 0991.34064 Sakhnovich, L. 2 2001 Spectral theory of a class of canonical differential systems. Zbl 0959.34069 Sakhnovich, L. A. 16 2000 On the spectral theory of a generalized differential Krein system. Zbl 0987.47008 Sakhnovich, L. A. 1 2000 Spectral theory of canonical differential systems. Method of operator identities. Zbl 0918.47003 Sakhnovich, Lev A. 64 1999 On an operator approach to interpolation problems for Stieltjes functions. Zbl 0952.47016 Bolotnikov, V.; Sakhnovich, L. 14 1999 The matrix nonlinear Schrödinger equation and the corresponding hierarchy of equations. Zbl 0987.35152 Sakhnovich, L. A. 1 1999 On a class of canonical systems on half-axis. Zbl 0919.47039 Sakhnovich, L. A. 11 1998 Classic spectral problems. Zbl 0903.34019 Sakhnovich, L. A. 2 1998 Spectral analysis of a class of canonical differential systems. Zbl 0908.34007 Sakhnovich, L. A. 2 1998 Interpolation theory and its applications. Zbl 0894.41001 Sakhnovich, L. A. 49 1997 The deficiency indices of a system of first-order differential equations. Zbl 0942.34071 Sakhnovich, L. A. 4 1997 Paired Cauchy matrices. Zbl 0873.15015 Heinig, G.; Sakhnovich, L. A.; Tidniuk, I. F. 1 1997 On the Sarason scheme in the matrix case. Zbl 0919.47015 Sakhnovich, L. A. 1 1997 Integral equations with difference kernels on finite intervals. Zbl 0841.45003 Sakhnovich, L. A. 14 1996 Inverse scattering problem for continuous transmission lines with rational reflection coefficient function. Zbl 0859.34063 Alpay, D.; Gohberg, I.; Sakhnovich, L. 3 1996 On properties of the discrete and continuous spectrum for the radial Dirac equation. Zbl 0940.34067 Sakhnovich, L. A. 3 1996 Spectral problems on half-axis. Zbl 0926.34016 Sakhnovich, L. A. 1 1996 Nonlinear equations and inverse spectral problems on the axis. Zbl 0843.34021 Sakhnovich, L. A. 3 1995 An operator approach to the Potapov scheme for the solution of interpolation problems. Zbl 0835.47012 Ivanchenko, T. S.; Sakhnovich, L. A. 11 1994 Matrix and operator valued functions. The Vladimir Petrovich Potapov memorial volume. Zbl 0797.00015 7 1994 On a hypothesis concerning Hamiltonians of canonical systems. Zbl 0839.34047 Sakhnovich, L. A. 3 1994 Inverse problems for equations systems. Zbl 0831.47037 Sakhnovich, L. A. 3 1994 Operator approach to interpolation problem. Zbl 0829.47013 Ivanchenko, T. S.; Sakhnovich, L. A. 1 1994 Spectral problems for canonical systems of equations on the axis. Zbl 0913.34068 Sakhnovich, Lev A. 1 1994 Method of operator identities and problems of analysis. Zbl 0823.47017 Sakhnovich, L. A. 7 1993 Interpolation problems, inverse spectral problems and nonlinear equations. Zbl 0793.47012 Sakhnovich, L. A. 2 1992 On singular explicit solutions of the modified KdV equation. Zbl 0836.35139 Sakhnovich, L. A. 1 1992 Integrable nonlinear equations on a half-axis. Zbl 0779.35103 Sakhnovich, L. A. 2 1991 The sinh-Gordon equation. Zbl 0747.35041 Sakhnovich, L. A. 1 1991 Integrable nonlinear equations on a halfaxis. Zbl 0766.35046 Sakhnovich, L. A. 1 1991 Two-sided estimation of the smallest eigenvalue of an operator characterizing stable processes. Zbl 0774.60019 Pozin, S. M.; Sakhnovich, L. A. 1 1991 A two-sided bound of the least eigen-value of an operator characterizing stable processes. Zbl 0727.60019 Pozin, S. M.; Sakhnovich, L. A. 1 1991 Efficient solution of the sh-Gordon equation. Zbl 0729.35129 Sakhnovich, L. A.; Tydnyuk, I. F. 5 1990 Explicit formulas for spectral characteristics and solutions of the sh- Gordon equation. Zbl 0737.35106 Sakhnovich, L. A. 1 1990 Evolution of spectral data and nonlinear equations. Zbl 0683.35068 Sakhnovich, L. A. 5 1988 Spectral problems for systems of equations on the line. Zbl 0666.34025 Sakhnovich, L. A. 1 1988 An operator approach to V.P. Potapov’s scheme for the investigation of interpolation problems. Zbl 0701.47019 Ivanchenko, T. S.; Sakhnovich, L. A. 5 1987 Operator identities in the theory of interpolation problems. Zbl 0633.30032 Ivanchenko, T. S.; Sakhnovich, L. A. 4 1987 Factorization problems and operator identities. Zbl 0613.47017 Sakhnovich, L. A. 42 1986 Inverse spectral problems for systems of equations. Zbl 0617.47012 Sakhnovich, L. A. 1 1985 Abel’s integral equations in the theory of stable processes. Zbl 0567.45005 Sakhnovich, L. A. 1 1984 Class of integrodifferential equations. Zbl 0507.45014 Sakhnovich, L. A. 1 1983 Asymptotics of the spectrum of anharmonic oscillator. Zbl 0457.34033 Sakhnovich, L. A. 4 1981 Equations with a difference kernel on a finite interval. Zbl 0462.45008 Sakhnovich, L. A. 14 1980 Equations with a difference kernel on a finite interval. Zbl 0444.45008 Sakhnovich, L. A. 5 1980 Systems of equations with difference kernels. Zbl 0443.45009 Sakhnovich, L. A. 2 1980 Factorization of operators in \(L^ 2(\)a,b). Zbl 0499.47014 Sakhnovich, L. A. 1 1980 Triangular integro-differential operators with a difference kernel. (Dreiecks-Integrodifferentialoperatoren mit Differenzenkern.) Zbl 0394.47024 Sakhnovich, L. A. 1 1978 On the factorization of an operator-valued transfer function. Zbl 0342.93022 Sakhnovich, L. A. 32 1976 On a class of integral equations that are solvable in closed form. (Über eine Klasse von Integralgleichungen, die in geschlossener Form lösbar sind.) Zbl 0305.45011 Sakhnovich, L. A. 2 1974 On the \(J\)-unitary dilation of a bounded operator. Zbl 0302.47012 Sakhnovich, L. A. 1 1974 On an integral equation with a kernel dependent on the difference of the arguments. (Über eine Integralgleichung mit einem Kern, der von der Differenz der Argumente abhängt.) Zbl 0305.45004 Sakhnovich, L. A. 8 1973 Similarity of operators. Zbl 0261.47007 Sakhnovich, L. A. 1 1973 The invariance principle for generalized wave operators. Zbl 0234.47003 Sakhnovich, L. A. 5 1971 On similarity of linear operators. Zbl 0232.47004 Sakhnovich, L. A. 3 1971 Generalized wave operators. Zbl 0215.21001 Sakhnovich, L. A. 4 1970 Generalized wave operators. (Verallgemeinerte Wellenoperatoren.) Zbl 0213.14603 Sakhnovich, L. A. 1 1970 Nichtunitäre Operatoren mit absolut stetigem Spektrum. Zbl 0174.19403 Sakhnovich, L. A. 2 1969 Dissipative Volterra operators. Zbl 0181.12201 Sakhnovich, L. A. 1 1969 Dissipative Operatoren mit absolut-stetigem Spektrum. Zbl 0179.46802 Sakhnovich, L. A. 13 1968 Operators which are similar to unitary operators with absolutely continuous spectrum. Zbl 0183.41803 Sakhnovich, L. A. 10 1968 ...and 18 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 313 Authors 48 Sakhnovich, Alexander L. 41 Sakhnovych, Lev Aronovych 17 Fritzsche, Bernd 17 Kirstein, Bernd 12 Yang, Chuanfu 10 Bondarenko, Natalia P. 9 Arov, Damir Zyamovich 9 Bolotnikov, Vladimir 9 Dym, Harry 8 Bart, Harm 7 Chen, Gongning 7 Denisov, Sergey A. 7 Roitberg, Inna Ya. 6 Gohberg, Israel 6 Kaashoek, Marinus Adriaan 6 Malamud, Mark M. 6 Wang, Yuping 5 Alpay, Daniel Aron 5 Gesztesy, Fritz 5 Hu, Yongjian 5 Lerer, Leonid Efimovich 5 Mädler, Conrad 5 Mogilevskii, Vadim 5 Shieh, Chung-Tsun 5 Yurko, Vjacheslav Anatoljevich 4 Duan, Xuefeng 4 Dyukarev, Yury M. 4 Koyunbakan, Hikmet 4 Ran, André C. M. 4 Winkler, Henrik 3 Adalar, Ibrahim 3 Amirov, Rauf Kh. 3 Ball, Joseph Anthony 3 Barseghyan, Ani G. 3 Buterin, Sergey Alexandrovich 3 Clark, Steve 3 Garayev, Mübariz Tapdıgoğlu 3 Gil’, Michael Iosif 3 Jørgensen, Palle E. T. 3 Kroon, Leo G. 3 Liao, Anping 3 Pedersen, Steen 3 Pivovarchik, Vyacheslav N. 3 Rovnyak, James 3 Teschl, Gerald 3 Tian, Feng 3 Xu, Xiaochuan 2 Al-Dubiban, Asmaa M. 2 Bastos, Maria Amélia 2 Brown, B. Malcolm 2 Bultheel, Adhemar François 2 Deift, Percy A. 2 Eckhardt, Jonathan 2 Ergün, Abdullah 2 Fang, Liang 2 Ismailov, Mansur I. 2 Ivanchenko, T. S. 2 Khanmamedov, Agil Khanmamed ogly 2 Khromov, Avgust Petrovich 2 Klaus, Martin 2 Korotyaev, Evgeny L. 2 Kostenko, Aleksey S. 2 Langer, Matthias 2 Lasarow, Andreas 2 Mitrouli, Marilena 2 Naboko, Serguei N. 2 Nikol’skiĭ, Nikolaĭ Kapitonovich 2 Olshevsky, Vadim 2 Ozkan, Ahmet Sinan 2 Petersen, Mark Adam 2 Ping, Wang Yu 2 Polosin, Alexei A. 2 Pozin, S. M. 2 Remling, Christian 2 Rodman, Leiba X. 2 Romanov, Roman V. 2 Ryzhov, Vladimir Anatol’evich 2 Stirling, David S. G. 2 Suzuki, Masatoshi 2 Tapdigoglu, Ramiz G. 2 Tarasenko, Anna A. 2 Tkachenko, Vadim Aleksandrovich 2 Tsekanovskii, Eduard R. 2 Woracek, Harald 2 Yin, Xiaoyan 2 Zemánek, Petr 2 Zinchenko, Maxim 1 Abbasova, Khatira E. 1 Acharya, Keshav Raj 1 Akhtyamov, Azamat Moukhtarovich 1 Aktosun, Tuncay 1 Alegría, Pedro 1 Alshammari, Bader 1 Altıntaş, Mevlut 1 Anderssen, Robert Scott 1 Annunziato, Mario 1 Arlins’kyĭ, Yuriĭ Moĭseĭovych 1 Athanassoulis, Gerassimos A. 1 Aydemir, Kadriye 1 Barrera Acevedo, Santiago ...and 213 more Authors all top 5 Cited in 113 Serials 38 Linear Algebra and its Applications 31 Integral Equations and Operator Theory 18 Mathematische Nachrichten 16 Journal of Mathematical Analysis and Applications 16 Journal of Functional Analysis 13 Ukrainian Mathematical Journal 12 Functional Analysis and its Applications 12 Journal of Differential Equations 9 Transactions of the American Mathematical Society 8 Mathematical Notes 8 Siberian Mathematical Journal 8 Journal of Mathematical Sciences (New York) 7 Complex Analysis and Operator Theory 6 Journal of Soviet Mathematics 5 Journal of Mathematical Physics 5 Results in Mathematics 5 Journal of Inverse and Ill-Posed Problems 5 Inverse Problems in Science and Engineering 5 Journal of Physics A: Mathematical and Theoretical 4 Journal of Computational and Applied Mathematics 3 Journal of Approximation Theory 3 Applied Mathematics Letters 3 Numerical Algorithms 3 Russian Mathematics 3 Differential Equations 2 Journal d’Analyse Mathématique 2 Physics Letters. 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The Electronic Journal of Linear Algebra 1 Mathematical Problems in Engineering 1 Positivity 1 Journal of Inequalities and Applications 1 Fractional Calculus & Applied Analysis 1 Annals of Mathematics. Second Series 1 Acta Mathematica Sinica. English Series 1 Annales Henri Poincaré 1 Journal of Nonlinear Mathematical Physics 1 Mathematical Modelling and Analysis 1 Algebraic & Geometric Topology 1 Applied Mathematics E-Notes 1 Proceedings of Institute of Mathematics and Mechanics. National Academy of Sciences of Azerbaijan 1 Journal of Numerical Mathematics 1 Multiscale Modeling & Simulation 1 Mediterranean Journal of Mathematics 1 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications 1 Complex Variables and Elliptic Equations 1 Proceedings of the Steklov Institute of Mathematics 1 Inverse Problems and Imaging ...and 13 more Serials all top 5 Cited in 40 Fields 179 Operator theory (47-XX) 151 Ordinary differential equations (34-XX) 54 Linear and multilinear algebra; matrix theory (15-XX) 47 Partial differential equations (35-XX) 43 Functions of a complex variable (30-XX) 36 Dynamical systems and ergodic theory (37-XX) 30 Integral equations (45-XX) 24 Functional analysis (46-XX) 23 Numerical analysis (65-XX) 19 Quantum theory (81-XX) 14 Harmonic analysis on Euclidean spaces (42-XX) 13 Difference and functional equations (39-XX) 10 Systems theory; control (93-XX) 9 Probability theory and stochastic processes (60-XX) 8 Approximations and expansions (41-XX) 7 Integral transforms, operational calculus (44-XX) 6 Mechanics of deformable solids (74-XX) 5 Statistical mechanics, structure of matter (82-XX) 4 Special functions (33-XX) 3 Real functions (26-XX) 3 Mechanics of particles and systems (70-XX) 3 Optics, electromagnetic theory (78-XX) 2 Combinatorics (05-XX) 2 Algebraic geometry (14-XX) 2 Abstract harmonic analysis (43-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Statistics (62-XX) 2 Operations research, mathematical programming (90-XX) 1 Mathematical logic and foundations (03-XX) 1 Number theory (11-XX) 1 Associative rings and algebras (16-XX) 1 Group theory and generalizations (20-XX) 1 Potential theory (31-XX) 1 Sequences, series, summability (40-XX) 1 Convex and discrete geometry (52-XX) 1 Algebraic topology (55-XX) 1 Computer science (68-XX) 1 Geophysics (86-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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