Edit Profile (opens in new tab) Cojuhari, Petru A. Compute Distance To: Compute Author ID: cojuhari.petru-a Published as: Kozhukhar’, P. A.; Cojuhari, P. A.; Cojuhari, Petru; Cojuhari, Petru A.; Cojuhari, P.; Kozhukhar, P. A. more...less Documents Indexed: 54 Publications since 1978 Reviewing Activity: 144 Reviews Co-Authors: 11 Co-Authors with 26 Joint Publications 164 Co-Co-Authors all top 5 Co-Authors 28 single-authored 8 Gheondea, Aurelian 3 Corsac, Serghei 3 Stanescu, Marius Marinel 2 Fel’dman, I. A. 2 Gomilko, Alexandre M. 2 Janas, Jan 2 Kuzhel, Sergei 2 Nizhnik, Leonid Pavlovich 1 Cialenko, Ig. 1 Grod, A. I. 1 Nowak, Michał A. all top 5 Serials 11 Buletinul Academiei de Științe a Republicii Moldova. Matematica 7 Akademiya Nauk Moldavskoĭ SSR. Ordena Trudovogo Krasnogo Znameni Institut Matematiki s Vychislitel’nym Tsentrom. Matematicheskie Issledovaniya 5 Journal of Mathematical Analysis and Applications 2 Integral Equations and Operator Theory 2 Opuscula Mathematica 2 Methods of Functional Analysis and Topology 2 Complex Analysis and Operator Theory 1 Journal of Mathematical Physics 1 Matematicheskie Zametki 1 Reports on Mathematical Physics 1 Revue Roumaine de Mathématiques Pures et Appliquées 1 Studia Mathematica 1 Acta Scientiarum Mathematicarum 1 Differential Equations 1 Functional Analysis and its Applications 1 Izvestiya Akademii Nauk Moldavskoĭ SSR. Seriya Fiziko-Tekhnicheskikh i Matematicheskikh Nauk 1 Journal of Computational and Applied Mathematics 1 Soviet Mathematics 1 Journal of Operator Theory 1 Bulletin of the Polish Academy of Sciences, Mathematics 1 Proceedings of the Romanian Academy. Series A: Mathematics, Physics, Technical Sciences, Information Science 1 Journal of Physics A: Mathematical and Theoretical all top 5 Fields 46 Operator theory (47-XX) 9 Functional analysis (46-XX) 7 Ordinary differential equations (34-XX) 7 Partial differential equations (35-XX) 5 Integral equations (45-XX) 3 Quantum theory (81-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Real functions (26-XX) 2 Numerical analysis (65-XX) 2 Statistical mechanics, structure of matter (82-XX) 1 Difference and functional equations (39-XX) 1 Sequences, series, summability (40-XX) 1 Integral transforms, operational calculus (44-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 21 Publications have been cited 71 times in 55 Documents Cited by ▼ Year ▼ Discreteness of the spectrum for some unbounded Jacobi matrices. Zbl 1211.47059Cojuhari, Petru A.; Janas, Jan 14 2007 On lifting of operators to Hilbert spaces induced by positive selfadjoint operators. Zbl 1092.46004Cojuhari, Petru; Gheondea, Aurelian 10 2005 On the spectrum of a class of block Jacobi matrices. Zbl 1199.47138Cojuhari, P. A. 6 2007 On the characterization of scalar type spectral operators. Zbl 1163.47029Cojuhari, P. A.; Gomilko, A. M. 5 2008 Closed embeddings of Hilbert spaces. Zbl 1198.46022Cojuhari, Petru; Gheondea, Aurelian 4 2010 On the finiteness of the discrete spectrum of the Dirac operator. Zbl 1214.81090Cojuhari, P. A. 4 2006 Estimates of the discrete spectrum of a linear operator pencil. Zbl 1117.47009Cojuhari, P. A. 3 2007 Discrete spectrum in the gaps for perturbations of periodic Jacobi matrices. Zbl 1169.47019Cojuhari, P. A. 3 2009 Kreĭn spaces induced by symmetric operators. Zbl 1174.47016Cojuhari, Petru; Gheondea, Aurelian 3 2009 Estimates of the number of perturbed eigenvalues. Zbl 1020.47010Cojuhari, P. A. 3 2000 Hochstadt inverse eigenvalue problem for Jacobi matrices. Zbl 1370.65019Cojuhari, P. A.; Nizhnik, L. P. 3 2017 Lax-Phillips scattering theory for \(\mathcal{PT}\)-symmetric {\(\rho\)}-perturbed operators. Zbl 1276.81117Cojuhari, Petru A.; Kuzhel, Sergii 2 2012 Unbounded Jacobi matrices with empty absolutely continuous spectrum. Zbl 1156.47033Cojuhari, Petru; Janas, Jan 2 2008 Generalized Hardy type inequalities and some applications to spectral theory. Zbl 0943.47015Cojuhari, P. A. 2 1997 Embeddings, operator ranges, and Dirac operators. Zbl 1298.47051Cojuhari, Petru; Gheondea, Aurelian 1 2011 Triplets of closely embedded Dirichlet type spaces on the unit polydisc. Zbl 1305.47016Cojuhari, Petru; Gheondea, Aurelian 1 2013 Projection-iterative methods for a class of difference equations. Zbl 1195.65071Cojuhari, Petru A.; Nowak, Michał A. 1 2009 On the \(S\)-matrix of Schrödinger operators with non-symmetric zero-range potentials. Zbl 1294.47015Cojuhari, P. A.; Grod, A.; Kuzhel, S. 1 2014 On the spectrum of perturbed Wiener-Hopf matrix operator. Zbl 0471.47018Kozhukhar, P. A. 1 1981 Scattering problem for Dirac system with nonlocal potentials. Zbl 1449.47025Cojuhari, P. A.; Nizhnik, L. P. 1 2019 On conditions for the finiteness of the discrete spectrum of the characteristic equations of the radiation transfer theory. Zbl 0552.47009Kozhukhar’, P. A.; Fel’dman, I. A. 1 1984 Scattering problem for Dirac system with nonlocal potentials. Zbl 1449.47025Cojuhari, P. A.; Nizhnik, L. P. 1 2019 Hochstadt inverse eigenvalue problem for Jacobi matrices. Zbl 1370.65019Cojuhari, P. A.; Nizhnik, L. P. 3 2017 On the \(S\)-matrix of Schrödinger operators with non-symmetric zero-range potentials. Zbl 1294.47015Cojuhari, P. A.; Grod, A.; Kuzhel, S. 1 2014 Triplets of closely embedded Dirichlet type spaces on the unit polydisc. Zbl 1305.47016Cojuhari, Petru; Gheondea, Aurelian 1 2013 Lax-Phillips scattering theory for \(\mathcal{PT}\)-symmetric {\(\rho\)}-perturbed operators. Zbl 1276.81117Cojuhari, Petru A.; Kuzhel, Sergii 2 2012 Embeddings, operator ranges, and Dirac operators. Zbl 1298.47051Cojuhari, Petru; Gheondea, Aurelian 1 2011 Closed embeddings of Hilbert spaces. Zbl 1198.46022Cojuhari, Petru; Gheondea, Aurelian 4 2010 Discrete spectrum in the gaps for perturbations of periodic Jacobi matrices. Zbl 1169.47019Cojuhari, P. A. 3 2009 Kreĭn spaces induced by symmetric operators. Zbl 1174.47016Cojuhari, Petru; Gheondea, Aurelian 3 2009 Projection-iterative methods for a class of difference equations. Zbl 1195.65071Cojuhari, Petru A.; Nowak, Michał A. 1 2009 On the characterization of scalar type spectral operators. Zbl 1163.47029Cojuhari, P. A.; Gomilko, A. M. 5 2008 Unbounded Jacobi matrices with empty absolutely continuous spectrum. Zbl 1156.47033Cojuhari, Petru; Janas, Jan 2 2008 Discreteness of the spectrum for some unbounded Jacobi matrices. Zbl 1211.47059Cojuhari, Petru A.; Janas, Jan 14 2007 On the spectrum of a class of block Jacobi matrices. Zbl 1199.47138Cojuhari, P. A. 6 2007 Estimates of the discrete spectrum of a linear operator pencil. Zbl 1117.47009Cojuhari, P. A. 3 2007 On the finiteness of the discrete spectrum of the Dirac operator. Zbl 1214.81090Cojuhari, P. A. 4 2006 On lifting of operators to Hilbert spaces induced by positive selfadjoint operators. Zbl 1092.46004Cojuhari, Petru; Gheondea, Aurelian 10 2005 Estimates of the number of perturbed eigenvalues. Zbl 1020.47010Cojuhari, P. A. 3 2000 Generalized Hardy type inequalities and some applications to spectral theory. Zbl 0943.47015Cojuhari, P. A. 2 1997 On conditions for the finiteness of the discrete spectrum of the characteristic equations of the radiation transfer theory. Zbl 0552.47009Kozhukhar’, P. A.; Fel’dman, I. A. 1 1984 On the spectrum of perturbed Wiener-Hopf matrix operator. Zbl 0471.47018Kozhukhar, P. A. 1 1981 all cited Publications top 5 cited Publications all top 5 Cited by 66 Authors 9 Cojuhari, Petru A. 5 Gheondea, Aurelian 4 Zielinski, Lech 3 Malamud, Mark M. 3 Malejki, Maria 2 Batty, Charles J. K. 2 Boutet de Monvel, Anne Marie 2 Gil’, Michael Iosif 2 Kostenko, Aleksey S. 2 Kuzhel, Sergei 2 Majdak, Witold 2 Moszyński, Marcin 2 Wei, Guangsheng 2 Zalot, Ewelina 1 Agure, John Ogonji 1 Albeverio, Sergio A. 1 Ambogo, David Otieno 1 Andruchow, Esteban 1 Arias, M. Laura 1 Arnold, Loris 1 Bebiano, Natália Isabel Quadros 1 Ben-Artzi, Matania 1 Braeutigam, Irina N. 1 Budyka, Viktoriya S. 1 Charif, Mirna 1 Chen, Guoliang 1 Corach, Gustavo 1 Djordjević, Bogdan D. 1 Dombrowski, Joanne 1 Erdoğan, Mehmet Burak 1 Fongi, Guillermina 1 Förster, Karl-Heinz 1 Główczyk, Anna 1 Gomilko, Alexandre M. 1 Gonzalez, María Celeste 1 Green, William R. 1 Guesba, Messaoud 1 Harrat, Ayoub 1 Hrod, A. I. 1 Kosowicz, Sylwia 1 Lange, Rutger-Jan 1 Maestripieri, Alejandra L. 1 Mokhtar-Kharroubi, Hocine 1 Mokhtar-Kharroubi, Mustapha 1 Mubeen, Junaid 1 Nafalska, Maria Magdalena 1 Niu, Pengcheng 1 Nizhnik, Leonid Pavlovich 1 Nyamwala, Fredrick Oluoch 1 Petropoulou, Eugenia N. 1 Polyakov, Dmitriĭ Mikhaĭlovich 1 Sahbani, Jaouad 1 Secelean, Nicolae-Adrian 1 Stadler, Robert 1 Suciu, Laurian 1 Świderski, Grzegorz 1 Teschl, Gerald 1 Tomilov, Yuri 1 Umeda, Tomio 1 Voros, Imre 1 Wei, Zhaoying 1 Wu, Xuewen 1 Xu, Weiru 1 Yuan, Yongxin 1 Zerouali, El Hassan 1 Zhang, Hairui all top 5 Cited in 28 Serials 12 Journal of Mathematical Analysis and Applications 6 Opuscula Mathematica 4 Integral Equations and Operator Theory 3 Complex Analysis and Operator Theory 2 Journal of Mathematical Physics 2 Applied Mathematics and Computation 2 Linear Algebra and its Applications 2 Central European Journal of Mathematics 1 Applicable Analysis 1 Communications in Mathematical Physics 1 Linear and Multilinear Algebra 1 Reports on Mathematical Physics 1 Ukrainian Mathematical Journal 1 Reviews in Mathematical Physics 1 Acta Scientiarum Mathematicarum 1 Journal of Approximation Theory 1 Journal of Computational and Applied Mathematics 1 Journal of Differential Equations 1 Journal of Functional Analysis 1 Mathematische Nachrichten 1 Acta Mathematica Hungarica 1 Acta Applicandae Mathematicae 1 Bulletin of the Iranian Mathematical Society 1 ETNA. Electronic Transactions on Numerical Analysis 1 Journal of Difference Equations and Applications 1 Ufimskiĭ Matematicheskiĭ Zhurnal 1 Journal of Complex Analysis 1 Bollettino dell’Unione Matematica Italiana all top 5 Cited in 16 Fields 47 Operator theory (47-XX) 11 Functional analysis (46-XX) 10 Linear and multilinear algebra; matrix theory (15-XX) 10 Ordinary differential equations (34-XX) 10 Quantum theory (81-XX) 8 Partial differential equations (35-XX) 4 Numerical analysis (65-XX) 3 Harmonic analysis on Euclidean spaces (42-XX) 2 Difference and functional equations (39-XX) 2 Sequences, series, summability (40-XX) 1 Number theory (11-XX) 1 Functions of a complex variable (30-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Systems theory; control (93-XX) Citations by Year