Mathematics, Statistics & Physics: Recent submissions
Now showing items 641-660 of 728
-
On convergence of an implicit iterative algorithm for non self asymptotically non expansive mappings
( Hacettepe University , 2014 , Article)In this paper, we study an implicit iterative algorithm for two nite families of nonself asymptotically nonexpansive mappings. We prove some weak and strong convergence theorems for this iterative algo- rithm. Our results ... -
Fuzzy linear programming for supply chain management in steel industry
( Hikari Ltd. , 2014 , Article)Linear programming is one of the frequently applied tools in supply chain management. However, managers and decision makers may lack information about exact values of most of the parameters used in the optimization models. ... -
Asymptotic stability of time-varying distributed parameter semi-linear systems
( IFAC , 2014 , Conference Paper)The asymptotic behaviour is studied for a class of non-linear distributed parameter time-varying dissipative systems. This is achieved by using time-varying infinite-dimensional Banach state space description. Stability ... -
Editorial: Some recent trends in variational inequalities and optimization problems with applications
( Hindawi Publishing Corp , 2014 , Article) -
Temperature dependence of the pressure induced monoclinic distortion in the spin S=1/2 Shastry–Sutherland compound SrCu2(BO3)2
( Elsevier Ltd , 2014 , Article)We investigate the monoclinic distortion that occurs at 4.7 GPa at room temperature in the frustrated Shastry-Sutherland model quantum magnet SrCu 2(BO3)2 as a function of pressure and temperature by means of powder and ... -
Isomorphic Hilbert spaces associated with different complex contours of the PT-symmetric (-x^4) theory
( World Scientific Publishing Co. , 2014 , Article)In this work, we stress the existence of isomorphisms which map complex contours from the upper half to contours in the lower half of the complex plane. The metric operator is found to depend on the chosen contour but the ... -
Asymptotic freedom, dimensional transmutation, and an infrared conformal fixed point for the ? -function potential in one-dimensional relativistic quantum mechanics
( American Physical Society , 2014 , Article)We consider the Schr?dinger equation for a relativistic point particle in an external one-dimensional ?-function potential. Using dimensional regularization, we investigate both bound and scattering states, and we obtain ... -
Correlated decay of triplet excitations in the shastry-sutherland compound SrCu2 (BO3)2
( American Physical Society , 2014 , Article)The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu2(BO3)2 is studied by means of inelastic neutron scattering. The excitation amplitude rapidly decreases ... -
Embodied water for urban economy: A three-scale input-output analysis for Beijing 2010
( Elsevier , 2015 , Article)The scheme of a three-scale input-output analysis is presented in this study to investigate the water use profile of the urban economy in Beijing. Defined as total water including direct and indirect water, embodied water ... -
LQ (optimal) control of hyperbolic PDAEs
( Taylor and Francis Ltd. , 2014 , Article)The linear quadratic control synthesis for a set of coupled first-order hyperbolic partial differential and algebraic equations is presented by using the infinite-dimensional Hilbert state-space representation of the system ... -
Antiferromagnetism in EuPdGe3
( Elsevier Ltd , 2014 , Article)The results of X-ray diffraction, magnetic susceptibility and magnetization, and 151Eu Mössbauer spectroscopy measurements of polycrystalline EuPdGe3 are reported. EuPdGe3 crystallizes in the BaNiSn3-type tetragonal structure ... -
A discussion on generalized almost contractions via rational expressions in partially ordered metric spaces
( Springer International Publishing , 2014 , Article)The main purpose of this paper is to give some fixed point results for mappings involving generalized (Formula presented.)-contractions in partially ordered metric spaces. Our results generalize, extend, and unify several ... -
Fate of accidental symmetries of the relativistic hydrogen atom in a spherical cavity
( Elsevier Masson , 2015 , Article)The non-relativistic hydrogen atom enjoys an accidental SO(4) symmetry, that enlarges the rotational SO(3) symmetry, by extending the angular momentum algebra with the Runge–Lenz vector. In the relativistic hydrogen atom ... -
On computing joint invariants of vector fields
( Elsevier , 2015 , Article)A constructive version of the Frobenius integrability theorem-that can be programmed effectively-is given. This is used in computing invariants of groups of low ranks and recover examples from a recent paper of Boyko etal. (2009). -
K-shell photoionization of O+ and O2+ ions: Experiment and theory
( American Physical Society , 2015 , Article)Absolute cross sections for the single and double K-shell photoionization of carbon like O2+ and nitrogen like O+ ions were measured in the 526–620-eV photon energy range by employing the ion-photon merged-beam technique ... -
Error analysis associated with uniform Hermite interpolations of bandlimited functions
( Korean Mathematical Society , 2010 , Article)We derive estimates for the truncation, amplitude and jitter type errors associated with Hermite-type interpolations at equidistant nodes of functions in Paley-Wiener spaces. We give pointwise and uniform estimates. Some ... -
On fixed points of Berinde's contractive mappings in cone metric spaces
( North University of Baia Mare , 2010 , Article)In this paper we establish some common fixed point theorems for two self-mappings satisfying a generalized contractive condition. This result generalizes well known comparable results in the literature. As an application, ... -
Two-phase sample size estimation with pre-assignedvariance under normality assumption
( Shiraz University , 2010 , Article)We develop a two phase sampling procedure to determine the sample size necessary to estimate the population mean of a normally distributed random variable and show that the resulting estimator has preassigned variance and ... -
Preliminary test estimation in the two parameter exponential distribution based on record values
( Nova Science Publishers , 2010 , Article)We considered estimation of the parameters of the exponential distribution based on record data in the presence of prior information. Preliminary test and shrinkage estimators are developed and their properties are ... -
Weak and strong convergence theorems without some widely used conditions
( Academic Publications, Ltd. , 2010 , Article)We establish weak (strong) convergence of Ishikawa iterates of two asymptotically (quasi-)nonexpansive maps without any condition on the rate of convergence associated with the two maps. Moreover, our weak convergence ...