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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • About the boundedness of 3-D continuous-time quadratic systems 
    Elhadj, Z.; Sprott, J.C. (Нелінійні коливання, 2010)
    Наведено узагальнення всiх вiдомих результатiв про верхню границю для загальної 3-D квадратичної системи з неперервним часом. Зокрема, знайдено великi областi у просторi бiфуркацiйного параметра системи, де система є обмеженою.
  • About the spectra of a real nonnegative matrix and its signings 
    Attas, K.; Boussaïri, A.; Zaidi, M. (Algebra and Discrete Mathematics, 2021)
    For a complex matrix M, we denote by Sp(M) the spectrum of M and by |M| its absolute value, that is the matrix obtained from M by replacing each entry of M by its absolute value. Let A be a nonnegative real matrix, we call ...
  • About Twistor Spinors with Zero in Lorentzian Geometry 
    Leitner, F. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    We describe the local conformal geometry of a Lorentzian spin manifold (M,g) admitting a twistor spinor φ with zero. Moreover, we describe the shape of the zero set of φ. If φ has isolated zeros then the metric g is locally ...
  • Absolutely ubiquitous groups 
    Ivanov, A.; Majcher, K. (Algebra and Discrete Mathematics, 2006)
    We characterise absolutely ubiquitous groups in the class of model complete ω-categorical groups.
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2017)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2018)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2019)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2018)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2018)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2018)
  • Abstracts 
    Автор відсутній (Український математичний вісник, 2019)
  • A CA Hybrid of the Slow-to-Start and the Optimal Velocity Models and its Flow-Density Relation 
    Ujino, H.; Yajima, T. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    The s2s-OVCA is a cellular automaton (CA) hybrid of the optimal velocity (OV) model and the slow-to-start (s2s) model, which is introduced in the framework of the ultradiscretization method. Inverse ultradiscretization as ...
  • A Canonical Trace Associated with Certain Spectral Triples 
    Paycha, S. (Symmetry, Integrability and Geometry: Methods and Applications, 2010)
    In the abstract pseudodifferential setup of Connes and Moscovici, we prove a general formula for the discrepancies of zeta-regularised traces associated with certain spectral triples, and we introduce a canonical trace on ...
  • A Centerless Virasoro Algebra of Master Symmetries for the Ablowitz-Ladik Hierarchy 
    Haine, L.; Vanderstichelen, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2013)
    We show that the (semi-infinite) Ablowitz-Ladik (AL) hierarchy admits a centerless Virasoro algebra of master symmetries in the sense of Fuchssteiner [Progr. Theoret. Phys. 70 (1983), 1508-1522]. An explicit expression for ...
  • A Central Limit Theorem for Random Walks on the Dual of a Compact Grassmannian 
    Rösler, M.; Voit, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We consider compact Grassmann manifolds G/K over the real, complex or quaternionic numbers whose spherical functions are Heckman-Opdam polynomials of type BC. From an explicit integral representation of these polynomials ...
  • A Characterization of Invariant Connections 
    Hanusch, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    Given a principal fibre bundle with structure group S, and a fibre transitive Lie group G of automorphisms thereon, Wang's theorem identifies the invariant connections with certain linear maps ψ:g→s. In the present paper, ...
  • A characterization of totally umbilical hypersurfaces of a space form by geodesic mapping 
    Canfes, E.Ö.; Özdeğer, A. (Український математичний журнал, 2013)
    The idea of considering the second fundamental form of a hypersurface as the first fundamental form of another hypersurface has found very useful applications in Riemannian and semi-Riemannian geometry, especially when ...
  • A characterization via graphs of the soluble groups in which permutability is transitive 
    Ballester-Bolinches, A.; Cossey, J.; Esteban-Romero, R. (Algebra and Discrete Mathematics, 2009)
    There are different ways to associate to a group a certain graph. In this context, it is interesting to ask for the relations between the structure of the group, given in group-theoretical terms, and the structure of the ...
  • A Classical Limit of Noumi's q-Integral Operator 
    Borodin, A.; Corwin, I.; Remenik, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We demonstrate how a known Whittaker function integral identity arises from the t=0 and q→1 limit of the Macdonald polynomial eigenrelation satisfied by Noumi's q-integral operator.
  • A Class of Distal Functions on Semitopological Semigroups 
    Jabbari, A.; Vishki, H.R.E. (2009)
    The norm closure of the algebra generated by the set {n→λ^nk : λ belongs T and k belongs N} of functions on (Z,+) was studied in [11] (and was named as the Weyl algebra). In this paper, by a fruitful result of Namioka, ...

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