Başlık için Matematik Bölümü listeleme
Toplam kayıt 291, listelenen: 58-77
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Degenerate Spin Groups as Semi-Direct Products
(Birkhauser Verlag Ag, 2010)Let Q be a symmetric bilinear form on R(n)=R(p+q+r) with corank r, rank p+q and signature type (p, q), p resp. q denoting positive resp. negative dimensions. We consider the degenerate spin group Spin(Q) = Spin(p, q, r) ... -
Degenerate spin structures and the Levy-Leblond equation
(2006)Newton-Cartan manifolds and the Galilei group are defined by the use of co-rank one degenerate metric tensor. Newton-Cartan connection is lifted to the degenerate spinor bundle over a Newton-Cartan 4-manifold by the aid ... -
Degenerate spin structures and the Lévy-Leblond equation
(2006)Newton-Cartan manifolds and the Galilei group are defined by the use of co-rank one degenerate metric tensor. Newton-Cartan connection is lifted to the degenerate spinor bundle over a Newton-Cartan 4-manifold by the aid ... -
Dependence on the parameters of the set of trajectories of the control system described by a nonlinear Volterra integral equation
(Acad Sciences Czech Republic, Inst Mathematics, 2014)In this paper the control system with limited control resources is studied, where the behavior of the system is described by a nonlinear Volterra integral equation. The admissible control functions are chosen from the ... -
Derivatives of the restrictions of harmonic functions on the Sierpinski gasket to segments
(Academic Press Inc Elsevier Science, 2007)We give an explicit derivative computation for the restriction of a harmonic function on SG to segments at specific points of the segments: The derivative is zero at points dividing the segment in ratio 1:3. This shows ... -
Determining the Critical Point of a Sigmoidal Curve via its Fourier Transform
(IOP Publishing LTD, 2016)A sigmoidal curve y(t) is a monotone increasing curve such that all derivatives vanish at infinity. Let t(n) be the point where the nth derivative of y(t) reaches its global extremum. In the previous work on sol-gel ... -
Development of a three dimensional geometric thinking test for early graders
(Sriwijaya University, 2018)This study aimed to develop a three-dimensional geometric thinking test to determine the geometric thinking of early graders in the paper-pencil environment. First, we determined the components of three-dimensional geometric ... -
Diagonal stability of uncertain interval systems
(SciTePress, 2015)In this paper we consider the problem of diagonal stability of interval systems. We investigate the existence and evaluation of a common diagonal solution to the Lyapunov and Stein matrix inequalities for third order ... -
Diagonal Stability of Uncertain Interval Systems
(IEEE, 2015)In this paper we consider the problem of diagonal stability of interval systems. We investigate the existence and evaluation of a common diagonal solution to the Lyapunov and Stein matrix inequalities for third order ... -
Dirac Operator on a 7-Manifold with Deformed G(2) Structure
(Ovidius University Press, 2012)In this work, we consider the deforming of a G(2) structure by a vector field on a 7-manifold. To obtain the metric corresponding to deformed G(2) structure, a new map is defined. By using this new map, the co-variant ... -
Directional convex extensions of the convex valued maps
(2009)In this paper, the concept of directional convex extension of the convex valued maps is introduced. Necessary and sufficient conditions for the existence of the directional convex extension of the convex valued map are obtained -
Discrete Time Stability Margins From Stein's Equation
(IEEE, 2015)This paper deals with the robust stability of a discrete time stable state space system subject to structured real parameter uncertainty. Using Lyapunov's Theorem and Stein's equation the radius of a stability hypersphere ... -
Ebu'l- Vefa' nın trigonometri cetvelleri
(2002)Matematik tarihi ile ilgili eserlerde, Ebu'l-Vefâ'nın onuncu yüzyılda astronomi ile ilgili çalışmalarının yanında düzlemsel ve küresel trigonometri konusunda da önemli çalışmaları olduğu ve 15' aralıkla sinüs cetveli ... -
Effects of shear stress forces to rotordynamic coefficients in staggered labyrinth seals
(Professional Engineering Publishing LTD, 2006)In this article, shear stresses in calculating the rotordynamic coefficients of staggered labyrinth seals are presented. Differences in the values of these coefficients are observed and quantified. The results of the present ... -
An equivalence class decomposition of finite metric spaces via Gromov products
(Elsevier Science BV, 2017)Let (X, d) be a finite metric space with elements P-i, i = 1,..., n and with the distance functions d(ij) The Gromov Product of the "triangle" (P-i, P-j, P-k) with vertices P-t, P-j and P-k at the vertex Pi is defined by ... -
An estimate of the oscillation of harmonic reproducing kernels with applications
(Academic Press Inc Elsevier Science, 2016)We estimate the oscillation of harmonic reproducing kernels. As an application of this estimation we obtain a double integral characterization of harmonic Besov spaces -
Euclidean realizations of Mauldin-Williams graphs
(2013)Graph-directed fractals are collections of metric spaces, each of which can be expressed as a union of several scaled copies of spaces from the collection. They give rise to weighted, directed graphs where the term comes ... -
The Euler characteristic and signature of four-dimensional closed manifolds and the normalized Ricci flow equation
(Springer, 2016)Let M be a closed manifold of dimension four, and let [0, T) be the maximal time interval for the normalized Ricci flow equation. We prove that, if the normalized Ricci flow equation has a solution on the non-negative real ... -
Evaluation of 11th grade students' cognitive behaviour on some subjects of analysis according to gender
(2005)The purpose of this research is to investigate students' cognitive behaviour in the subjects of function, limit, and derivative according to gender. The research was conducted with the participation of 67 female and 58 ... -
Existence and monotone iteration of concave positive symmetric solutions for a three-point second-order boundary value problems with integral boundary conditions
(Dynamic Publishers, 2015)In this article, we make use of the monotone iterative technique to verify the existence of concave symmetric positive solutions of a second-order three-point boundary value problem with integral boundary conditions. The ...