Krejčiřík David

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Records found: 14

0374993 - UJF-V 2012 RIV NL eng J - Journal Article
Borisov, D. - Krejčiřík, David
The effective Hamiltonian for thin layers with non-Hermitian Robin-type boundary conditions.
Asymptotic Analysis. Roč. 76, č. 1 (2012), s. 49-59. ISSN 0921-7134
R&D Projects: GA MŠk LC06002; GA ČR GAP203/11/0701
Institutional Support: CEZ:AV0Z10480505
Keywords: WAVE-GUIDES * CURVATURE * DIRICHLET * LAPLACIAN
Subject RIV: BM - Solid Matter Physics & Magnetism
Impact factor: 0.535, year: 2012
Permanent link: http://hdl.handle.net/11104/0207774

0343027 - UJF-V 2011 RIV US eng J - Journal Article
Fraas, Martin - Krejčiřík, David - Pinchover, Y.
ON SOME STRONG RATIO LIMIT THEOREMS FOR HEAT KERNELS.
Discrete and Continuous Dynamical Systems. Roč. 28, č. 2 (2010), s. 495-509. ISSN 1078-0947
R&D Projects: GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: Heat kernel * large time behavior * positive solutions
Subject RIV: BE - Theoretical Physics
Impact factor: 0.986, year: 2010
Permanent link: http://hdl.handle.net/11104/0185605

0365515 - UJF-V 2012 RIV NL eng J - Journal Article
Hernandez-Coronado, H. - Krejčiřík, David - Siegl, Petr
Perfect transmission scattering as a PT-symmetric spectral problem.
Physics Letters. A. Roč. 375, č. 22 (2011), s. 2149-2152. ISSN 0375-9601
R&D Projects: GA ČR GAP203/11/0701; GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: QUANTUM-MECHANICS
Subject RIV: BE - Theoretical Physics
Impact factor: 1.632, year: 2011
Permanent link: http://hdl.handle.net/11104/0200744

0388212 - UJF-V 2013 RIV GB eng J - Journal Article
Kochan, D. - Krejčiřík, David - Novák, Radek - Siegl, Petr
The Pauli equation with complex boundary conditions.
Journal of Physics A-Mathematical and Theoretical. Roč. 45, č. 44 (2012), 444019/1-444019/14. ISSN 1751-8113
R&D Projects: GA ČR GAP203/11/0701
Institutional Support: RVO:61389005
Keywords: PT-symmetry * quantum mechanics * Hamiltonians
Subject RIV: BE - Theoretical Physics
Impact factor: 1.766, year: 2012
Permanent link: http://hdl.handle.net/11104/0217040

0428327 - UJF-V 2015 RIV JP eng J - Journal Article
Kondej, S. - Krejčiřík, David
Spectral Analysis of a Quantum System with a Double Line Singular Interaction.
Publications of the Research Institute for Mathematical Sciences. Roč. 49, č. 4 (2013), s. 831-859. ISSN 0034-5318
R&D Projects: GA ČR GAP203/11/0701
Institutional Support: RVO:61389005
Keywords: Schrödinger operator * singular perturbation * spectral analysis * Hardy inequality * resonance
Subject RIV: BE - Theoretical Physics
Impact factor: 0.614, year: 2013
Permanent link: http://hdl.handle.net/11104/0233680

0376708 - UJF-V 2013 RIV US eng J - Journal Article
Krejčiřík, David - Pratelli, A.
THE CHEEGER CONSTANT OF CURVED STRIPS.
Pacific Journal of Mathematics. Roč. 254, č. 2 (2011), s. 309-333. ISSN 0030-8730
R&D Projects: GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: Cheeger sets * Cheeger constant * curved strips
Subject RIV: BE - Theoretical Physics
Impact factor: 0.626, year: 2011
Permanent link: http://hdl.handle.net/11104/0209041

0384331 - UJF-V 2013 RIV SG eng J - Journal Article
Krejčiřík, David - Šediváková, Helena
The effective Hamiltonian in curved quantum waveguides under mild regularity assumptions.
Reviews in Mathematical Physics. Roč. 24, č. 7 (2012), 1250018/1-1250018/39. ISSN 0129-055X
R&D Projects: GA MŠk LC06002; GA ČR GAP203/11/0701
Institutional Support: RVO:61389005
Keywords: quantum waveguides * thin-width limit * effective Hamiltonian * twisting versus bending * norm-resolvent convergence * Dirichlet Laplacian * curved tubes * relatively parallel frame * Steklov approximation
Subject RIV: BE - Theoretical Physics
Impact factor: 1.092, year: 2012
Permanent link: http://hdl.handle.net/11104/0217004

0384795 - UJF-V 2013 RIV CH eng J - Journal Article
Krejčiřík, David
PT-Symmetric Waveguides and the Lack of Variational Techniques.
Integral Equations and Operator Theory. Roč. 73, č. 1 (2012), s. 1-2. ISSN 0378-620X
Institutional Support: RVO:61389005
Keywords: Robin Laplacian * non-self-adjoint boundary conditions * complex symmetric operator * PT-symmetry * waveguides * discrete and essential spectra
Subject RIV: BA - General Mathematics
Impact factor: 0.713, year: 2012
Permanent link: http://hdl.handle.net/11104/0214320

0367928 - UJF-V 2013 RIV US eng J - Journal Article
Krejčiřík, David - Zuazua, E.
The asymptotic behaviour of the heat equation in a twisted Dirichlet-Neumann waveguide.
Journal of Differential Equations. Roč. 250, č. 5 (2011), s. 2334-2346. ISSN 0022-0396
R&D Projects: GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: Laplacian * Dirichlet and Neumann boundary conditions * Twist
Subject RIV: BE - Theoretical Physics
Impact factor: 1.277, year: 2011
Permanent link: http://hdl.handle.net/11104/0202435

0425780 - UJF-V 2015 RIV CH eng J - Journal Article
Krejčiřík, David - Siegl, Petr - Železný, Jakub
On the Similarity of Sturm-Liouville Operators with Non-Hermitian Boundary Conditions to Self-Adjoint and Normal Operators.
Complex Analysis and Operator Theory. Roč. 8, č. 1 (2014), s. 255-281. ISSN 1661-8254
R&D Projects: GA MŠk LC06002; GA MŠk LC527; GA ČR GAP203/11/0701
Not R&D Projects: GA ČR(CZ) GD202/08/H072
Institutional Support: RVO:61389005
Keywords: Sturm-Liouville operators * non-symmetric Robin boundary conditions * similarity to normal or self-adjoint operators * discrete spectral operator * complex symmetric operator * PT-symmetry * metric operator * C operator * Hilbert-Schmidt operators
Subject RIV: BE - Theoretical Physics
Impact factor: 0.519, year: 2013
Permanent link: http://hdl.handle.net/11104/0231575

0392916 - UJF-V 2014 RIV US eng J - Journal Article
Krejčiřík, David
The improved decay rate for the heat semigroup with local magnetic field in the plane.
Calculus of Variations and Partial Differential Equations. Roč. 47, 1-2 (2013), s. 207-226. ISSN 0944-2669
R&D Projects: GA MŠk LC06002; GA ČR GAP203/11/0701
Institutional Support: RVO:61389005
Keywords: convection-diffusion equations * large time behavior * singular potentials * hardy inequality * dirichlet forms * operators
Subject RIV: BE - Theoretical Physics
Impact factor: 1.526, year: 2013
http://link.springer.com/content/pdf/10.1007%2Fs00526-012-0516-1.pdf
Permanent link: http://hdl.handle.net/11104/0221701

0351846 - UJF-V 2011 RIV GB eng J - Journal Article
Krejčiřík, David - Siegl, Petr
PT-symmetric models in curved manifolds.
Journal of Physics A-Mathematical and Theoretical. Roč. 43, č. 48 (2010), 485204/1-485204/30. ISSN 1751-8113
R&D Projects: GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: NON-HERMITIAN HAMILTONIANS * SCHRODINGER-TYPE OPERATORS * PSEUDO-HERMITICITY
Subject RIV: BA - General Mathematics
Impact factor: 1.641, year: 2010
Permanent link: http://hdl.handle.net/11104/0191502

0351848 - UJF-V 2011 RIV FR eng J - Journal Article
Krejčiřík, David - Zuazua, E.
The Hardy inequality and the heat equation in twisted tubes.
Journal de Mathematiques Pures Et Appliquees. Roč. 94, č. 3 (2010), s. 277-303. ISSN 0021-7824
R&D Projects: GA MŠk LC06002
Institutional Support: CEZ:AV0Z10480505
Keywords: Twisted tubes * Hardy inequality * Dirichlet Laplacian
Subject RIV: BA - General Mathematics
Impact factor: 1.450, year: 2010
Permanent link: http://hdl.handle.net/11104/0191504

0388200 - UJF-V 2013 RIV US eng J - Journal Article
Siegl, Petr - Krejčiřík, David
On the metric operator for the imaginary cubic oscillator.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 86, č. 12 (2012), 121702/1-121702/6. ISSN 1550-7998
R&D Projects: GA ČR GAP203/11/0701
Institutional Support: RVO:61389005
Keywords: quantum mechanics * Schrödinger operators * reality
Subject RIV: BE - Theoretical Physics
Impact factor: 4.691, year: 2012
Permanent link: http://hdl.handle.net/11104/0217031