Search results
- 1.0573700 - ÚJF 2024 RIV NL eng J - Journal Article
Hančl, J. - Turek, Ondřej
Continued fractions with bounded even-order partial quotients.
Ramanujan Journal. Roč. 62, č. 9 (2023), s. 69-110. ISSN 1382-4090. E-ISSN 1572-9303
R&D Projects: GA ČR(CZ) GA21-07129S
Institutional support: RVO:61389005
Keywords : Continued fraction * Bounded partial quotients * Sum of continued fractions * Product of continued fractions * Hausdorff dimension
OECD category: Applied mathematics
Impact factor: 0.7, year: 2022
Method of publishing: Limited access
https://doi.org/10.1007/s11139-023-00741-1
Permanent Link: https://hdl.handle.net/11104/0344773 - 2.0544707 - ÚJF 2022 RIV PL eng J - Journal Article
Contreras, D. U. - Goyeneche, D. - Turek, Ondřej - Václavíková, Z.
Circulant matrices with orthogonal rows and off-diagonal entries of absolute value 1.
Communications in mathematics. Roč. 29, č. 1 (2021), s. 15-34. ISSN 1804-1388
Institutional support: RVO:61389005
Keywords : Circulant matrix * Hadamard matrix * Matually unbiased base * Orthogonal matrix
OECD category: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Method of publishing: Open access
https://doi.org/10.2478/cm-2021-0005
Permanent Link: http://hdl.handle.net/11104/0321532File Download Size Commentary Version Access 0544707.pdf 0 398.7 KB Open Access - CC licence Publisher’s postprint open-access - 3.0523766 - ÚJF 2021 RIV NL eng J - Journal Article
Koukouvinos, C. - Mitrouli, M. - Turek, Ondřej
Efficient estimates in regression models with highly correlated covariates.
Journal of Computational and Applied Mathematics. Roč. 373, č. 8 (2020), č. článku 112416. ISSN 0377-0427. E-ISSN 1879-1778.
[3rd Inernational Conference on Numerical Analysis and Scientific Computation with Applications (NASCA). Kalamata, 02.07.2018-06.07.2018]
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : penalized least squares * tuning parameter * exrapolation * generalized cross-validation
OECD category: Pure mathematics
Impact factor: 2.621, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.cam.2019.112416
Permanent Link: http://hdl.handle.net/11104/0308063 - 4.0504072 - ÚJF 2020 RIV US eng J - Journal Article
Turek, Ondřej - Goyeneche, D.
A generalization of circulant Hadamard and conference matrices.
Linear Algebra and Its Applications. Roč. 569, č. 5 (2019), s. 241-265. ISSN 0024-3795. E-ISSN 1873-1856
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : circulant matrix * orthogonal matrix * circulant Hadamard conjecture * conference matrix
OECD category: Pure mathematics
Impact factor: 0.988, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.laa.2019.01.018
Permanent Link: http://hdl.handle.net/11104/0296045 - 5.0503691 - ÚJF 2020 RIV GB eng J - Journal Article
Turek, Ondřej
Gaps in the Spectrum of a Cuboidal Periodic Lattice Graph.
Reports on Mathematical Physics. Roč. 83, č. 1 (2019), s. 107-127. ISSN 0034-4877. E-ISSN 1879-0674
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : quantum graph * periodic lattice * Bethe-Sommerfeld conjecture * irrational number * continued fraction
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 0.860, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/S0034-4877(19)30027-8
Permanent Link: http://hdl.handle.net/11104/0295500 - 6.0501142 - ÚJF 2020 RIV GB eng J - Journal Article
Hančl, J. - Turek, Ondřej
One-sided Diophantine approximations.
Journal of Physics A-Mathematical and Theoretical. Roč. 52, č. 4 (2019), č. článku 045205. ISSN 1751-8113. E-ISSN 1751-8121
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : continued fraction * continued fraction * quantum graph * Bethe-Sommerfeld conjecture
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 1.996, year: 2019
Method of publishing: Limited access
https://doi.org/10.1088/1751-8121/aaf5d3
Permanent Link: http://hdl.handle.net/11104/0293182 - 7.0490635 - ÚJF 2019 RIV GB eng J - Journal Article
Exner, Pavel - Turek, Ondřej - Tater, Miloš
A family of quantum graph vertex couplings interpolating between different symmetries.
Journal of Physics A-Mathematical and Theoretical. Roč. 51, č. 28 (2018), č. článku 285301. ISSN 1751-8113. E-ISSN 1751-8121
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : quantum graphs * vertex coupling * time reversal noninvariance * square lattice * interpolation * rotational symmetry * circulant matrix
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 2.110, year: 2018
Permanent Link: http://hdl.handle.net/11104/0284797 - 8.0486254 - ÚJF 2018 RIV GB eng J - Journal Article
Exner, Pavel - Turek, Ondřej
Periodic quantum graphs from the Bethe-Sommerfeld perspective.
Journal of Physics A-Mathematical and Theoretical. Roč. 50, č. 45 (2017), č. článku 455201. ISSN 1751-8113. E-ISSN 1751-8121
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : quantum graphs * Bethe-Sommerfeld conjecture * vertex coupling * Diophantine approximation * periodic structure
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 1.963, year: 2017
Permanent Link: http://hdl.handle.net/11104/0281133 - 9.0480621 - ÚJF 2018 RIV RU eng J - Journal Article
Exner, Pavel - Turek, Ondřej
Quantum graphs with the Bethe-Sommerfeld property.
Nanosystems: Physics, Chemistry, Mathematics. Roč. 8, č. 3 (2017), s. 305-309. ISSN 2220-8054
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : periodic quantum graphs * gap number * delta-coupling * rectangular lattice graph * scale-invariant coupling * Bethe-Sommerfeld conjecture * golden mean
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Permanent Link: http://hdl.handle.net/11104/0276356 - 10.0475710 - ÚJF 2018 RIV GB eng J - Journal Article
Goyeneche, D. - Turek, Ondřej
Equiangular tight frames and unistochastic matrices.
Journal of Physics A-Mathematical and Theoretical. Roč. 50, č. 24 (2017), č. článku 245304. ISSN 1751-8113. E-ISSN 1751-8121
R&D Projects: GA ČR GA17-01706S
Institutional support: RVO:61389005
Keywords : equiangular tight frames * unistochastic matrices * SIC POVM
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 1.963, year: 2017
Permanent Link: http://hdl.handle.net/11104/0272356