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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • New Inequalities for the p-Angular Distance in Normed Spaces with Applications 
    Dragomir, S.S. (Український математичний журнал, 2015)
  • New results on periodic solutions to impulsive non-autonomous evolution equations with time delays 
    Wang, R.-N.; Zhu, P.-X. (Нелінійні коливання, 2014)
    This paper is devoted to establishing some new results on periodic solutions to a class of nonautonomous impulsive evolution equations with time delays. On making some suitable assumptions such as solutions of equations ...
  • New second branch of the spectrum of the BCS Hamiltonian and a “pseudogap” 
    Petrina, D.Ya. (Український математичний журнал, 2005)
    The BCS Hamiltonian of superconductivity has the second branch of eigenvalues and eigenvectors. It consists of wave functions of pairs of electrons in ground and excited states. The continuous spectrum of excited pairs is ...
  • New Sharp Ostrowski-type Inequalities and Generalized Trapezoid-type Inequalities for Riemann–Stieltjes Integrals and their Applications 
    Alomari, M.W. (Український математичний журнал, 2013)
    We prove new sharp weighted generalizations of Ostrowski-type and generalized trapezoid-type inequalities for Riemann–Stieltjes integrals. Several related inequalities are deduced and investigated. New Simpson-type ...
  • New solvability conditions for a non-local boundary value problem for nonlinear functional differential equations 
    Oplustil, Z. (Нелінійні коливання, 2008)
    New efficient conditions are obtained sufficient for the solvability as well as unique solvability of a nonlocal boundary-value problem for nonlinear functional differential equations.
  • A new test for unimodality 
    Andrushkiw, R.I.; Klyushin, D.D.; Petunin, Y.I. (2008)
    A distribution function (d.f.) of a random variable is unimodal if there exists a number such that d.f. is convex left from this number and is concave right from this number. This number is called a mode of d.f. Since one ...
  • Newton-Kantorovich Iterative Regularization for Nonlinear Ill-Posed Equations Involving Accretive Operators 
    Nguen Byong; Vu Quang Hung (Український математичний журнал, 2005)
    The Newton-Kantorovich iterative regularization for nonlinear ill-posed equations involving monotone operators in Hilbert spaces is developed for the case of accretive operators in Banach spaces. An estimate for the ...
  • New Variables of Separation for the Steklov-Lyapunov System 
    Tsiganov, A.V. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    A rigid body in an ideal fluid is an important example of Hamiltonian systems on a dual to the semidirect product Lie algebra e(3)=so(3)⋉R³. We present the bi-Hamiltonian structure and the corresponding variables of ...
  • Nicolai N. Semko (dedicated to 60-th Birthday) 
    Автор відсутній (Algebra and Discrete Mathematics, 2017)
    We warmly congratulate N. N. Semko on his 60th birthday and wish him strong health and many successful years of research and teaching.
  • Nijenhuis Integrability for Killing Tensors 
    Schöbel, K. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    The fundamental tool in the classification of orthogonal coordinate systems in which the Hamilton-Jacobi and other prominent equations can be solved by a separation of variables are second order Killing tensors which satisfy ...
  • Nilpotent subsemigroups of a semigroup of order-decreasing transformations of a rooted tree 
    Автор відсутній (Algebra and Discrete Mathematics, 2006)
    This paper deals with a semigroup of orderdecreasing transformations of a rooted tree. Such are the transformations α of some rooted tree G satisfying following condition: for any x from G α(x) belongs to a simple path ...
  • Non-Associative Geometry of Quantum Tori 
    D'Andrea, F.; Franco, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    We describe how to obtain the imprimitivity bimodules of the noncommutative torus from a ''principal bundle'' construction, where the total space is a quasi-associative deformation of a 3-dimensional Heisenberg manifold.
  • Nonclassical Approximate Symmetries of Evolution Equations with a Small Parameter 
    Kordyukova, S. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We introduce a method of approximate nonclassical Lie-Bäcklund symmetries for partial differential equations with a small parameter and discuss applications of this method to finding of approximate solutions both integrable ...
  • Noncommutative Differential Geometry of Generalized Weyl Algebras 
    Brzeziński, T. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    Elements of noncommutative differential geometry of Z-graded generalized Weyl algebras A(p;q) over the ring of polynomials in two variables and their zero-degree subalgebras B(p;q), which themselves are generalized Weyl ...
  • Noncommutative geometry: fuzzy spaces, the Groenewold-Moyal plane 
    Balachandran, A.P.; Qureshi, B.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    In this talk, we review the basics concepts of fuzzy physics and quantum field theory on the Groenewold-Moyal Plane as examples of noncommutative spaces in physics. We introduce the basic ideas, and discuss some important ...
  • Non-commutative Grillet semigroups 
    Novikov, B.V. (Algebra and Discrete Mathematics, 2014)
    Grillet semigroups are introduced. This class of semigroups contains regular semigroups and complete commutative semigroups (by Grillet’s terminology). Some structural theorems are proved.
  • Noncommutative Lagrange Mechanics 
    Kochan, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    It is proposed how to impose a general type of ''noncommutativity'' within classical mechanics from first principles. Formulation is performed in completely alternative way, i.e. without any resort to fuzzy and/or star ...
  • Non-commutative mechanics in mathematical & in condensed matter physics 
    Horváthy, P.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    Non-commutative structures were introduced, independently and around the same time, in mathematical and in condensed matter physics (see Table 1). Souriau's construction applied to the two-parameter central extension of ...
  • Noncommutative Phase Spaces by Coadjoint Orbits Method 
    Ngendakumana, A.; Nzotungicimpaye, J.; Todjihounde, L. (Symmetry, Integrability and Geometry: Methods and Applications, 2011)
    We introduce noncommutative phase spaces by minimal couplings (usual one, dual one and their mixing). We then realize some of them as coadjoint orbits of the anisotropic Newton-Hooke groups in two- and three-dimensional ...
  • Non-Commutative Resistance Networks 
    Rieffel, M.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    In the setting of finite-dimensional C*-algebras A we define what we call a Riemannian metric for A, which when A is commutative is very closely related to a finite resistance network. We explore the relationship with ...

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