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Cojuhari, Petru A.

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Author ID: cojuhari.petru-a Recent zbMATH articles by "Cojuhari, Petru A."
Published as: Cojuhari, P.; Cojuhari, P. A.; Cojuhari, Petru; Cojuhari, Petru A.; Kozhukhar’, P. A.; Kozhukhar, P. A.
Documents Indexed: 53 Publications since 1978
Reviewing Activity: 144 Reviews

Publications by Year

Citations contained in zbMATH Open

22 Publications have been cited 59 times in 44 Documents Cited by Year
Discreteness of the spectrum for some unbounded Jacobi matrices. Zbl 1211.47059
Cojuhari, Petru A.; Janas, Jan
11
2007
On lifting of operators to Hilbert spaces induced by positive selfadjoint operators. Zbl 1092.46004
Cojuhari, Petru; Gheondea, Aurelian
8
2005
Closed embeddings of Hilbert spaces. Zbl 1198.46022
Cojuhari, Petru; Gheondea, Aurelian
4
2010
On the spectrum of a class of block Jacobi matrices. Zbl 1199.47138
Cojuhari, P. A.
4
2007
Hochstadt inverse eigenvalue problem for Jacobi matrices. Zbl 1370.65019
Cojuhari, P. A.; Nizhnik, L. P.
3
2017
Kreĭn spaces induced by symmetric operators. Zbl 1174.47016
Cojuhari, Petru; Gheondea, Aurelian
3
2009
On the characterization of scalar type spectral operators. Zbl 1163.47029
Cojuhari, P. A.; Gomilko, A. M.
3
2008
Estimates of the discrete spectrum of a linear operator pencil. Zbl 1117.47009
Cojuhari, P. A.
3
2007
Estimates of the number of perturbed eigenvalues. Zbl 1020.47010
Cojuhari, P. A.
3
2000
Discrete spectrum in the gaps for perturbations of periodic Jacobi matrices. Zbl 1169.47019
Cojuhari, P. A.
2
2009
Unbounded Jacobi matrices with empty absolutely continuous spectrum. Zbl 1156.47033
Cojuhari, Petru; Janas, Jan
2
2008
On the finiteness of the discrete spectrum of the Dirac operator. Zbl 1214.81090
Cojuhari, P. A.
2
2006
Generalized Hardy type inequalities and some applications to spectral theory. Zbl 0943.47015
Cojuhari, P. A.
2
1997
Scattering problem for Dirac system with nonlocal potentials. Zbl 1449.47025
Cojuhari, P. A.; Nizhnik, L. P.
1
2019
On the \(S\)-matrix of Schrödinger operators with non-symmetric zero-range potentials. Zbl 1294.47015
Cojuhari, P. A.; Grod, A.; Kuzhel, S.
1
2014
Triplets of closely embedded Dirichlet type spaces on the unit polydisc. Zbl 1305.47016
Cojuhari, Petru; Gheondea, Aurelian
1
2013
Lax-Phillips scattering theory for \(\mathcal{PT}\)-symmetric \(\rho\)-perturbed operators. Zbl 1276.81117
Cojuhari, Petru A.; Kuzhel, Sergii
1
2012
Embeddings, operator ranges, and Dirac operators. Zbl 1298.47051
Cojuhari, Petru; Gheondea, Aurelian
1
2011
Finiteness of the discrete spectrum of some matrix pseudodifferential operators. Zbl 0702.47033
Kozhukhar’, P. A.
1
1989
Finiteness of the discrete spectrum of some pseudo-differential operators. Zbl 0568.35094
Kozhukhar’, P. A.
1
1985
On conditions for the finiteness of the discrete spectrum of the characteristic equations of the radiation transfer theory. Zbl 0552.47009
Kozhukhar’, P. A.; Fel’dman, I. A.
1
1984
On the spectrum of perturbed Wiener-Hopf matrix operator. Zbl 0471.47018
Kozhukhar, P. A.
1
1981
Scattering problem for Dirac system with nonlocal potentials. Zbl 1449.47025
Cojuhari, P. A.; Nizhnik, L. P.
1
2019
Hochstadt inverse eigenvalue problem for Jacobi matrices. Zbl 1370.65019
Cojuhari, P. A.; Nizhnik, L. P.
3
2017
On the \(S\)-matrix of Schrödinger operators with non-symmetric zero-range potentials. Zbl 1294.47015
Cojuhari, P. A.; Grod, A.; Kuzhel, S.
1
2014
Triplets of closely embedded Dirichlet type spaces on the unit polydisc. Zbl 1305.47016
Cojuhari, Petru; Gheondea, Aurelian
1
2013
Lax-Phillips scattering theory for \(\mathcal{PT}\)-symmetric \(\rho\)-perturbed operators. Zbl 1276.81117
Cojuhari, Petru A.; Kuzhel, Sergii
1
2012
Embeddings, operator ranges, and Dirac operators. Zbl 1298.47051
Cojuhari, Petru; Gheondea, Aurelian
1
2011
Closed embeddings of Hilbert spaces. Zbl 1198.46022
Cojuhari, Petru; Gheondea, Aurelian
4
2010
Kreĭn spaces induced by symmetric operators. Zbl 1174.47016
Cojuhari, Petru; Gheondea, Aurelian
3
2009
Discrete spectrum in the gaps for perturbations of periodic Jacobi matrices. Zbl 1169.47019
Cojuhari, P. A.
2
2009
On the characterization of scalar type spectral operators. Zbl 1163.47029
Cojuhari, P. A.; Gomilko, A. M.
3
2008
Unbounded Jacobi matrices with empty absolutely continuous spectrum. Zbl 1156.47033
Cojuhari, Petru; Janas, Jan
2
2008
Discreteness of the spectrum for some unbounded Jacobi matrices. Zbl 1211.47059
Cojuhari, Petru A.; Janas, Jan
11
2007
On the spectrum of a class of block Jacobi matrices. Zbl 1199.47138
Cojuhari, P. A.
4
2007
Estimates of the discrete spectrum of a linear operator pencil. Zbl 1117.47009
Cojuhari, P. A.
3
2007
On the finiteness of the discrete spectrum of the Dirac operator. Zbl 1214.81090
Cojuhari, P. A.
2
2006
On lifting of operators to Hilbert spaces induced by positive selfadjoint operators. Zbl 1092.46004
Cojuhari, Petru; Gheondea, Aurelian
8
2005
Estimates of the number of perturbed eigenvalues. Zbl 1020.47010
Cojuhari, P. A.
3
2000
Generalized Hardy type inequalities and some applications to spectral theory. Zbl 0943.47015
Cojuhari, P. A.
2
1997
Finiteness of the discrete spectrum of some matrix pseudodifferential operators. Zbl 0702.47033
Kozhukhar’, P. A.
1
1989
Finiteness of the discrete spectrum of some pseudo-differential operators. Zbl 0568.35094
Kozhukhar’, P. A.
1
1985
On conditions for the finiteness of the discrete spectrum of the characteristic equations of the radiation transfer theory. Zbl 0552.47009
Kozhukhar’, P. A.; Fel’dman, I. A.
1
1984
On the spectrum of perturbed Wiener-Hopf matrix operator. Zbl 0471.47018
Kozhukhar, P. A.
1
1981

Citations by Year