Browsing Computational and Applied Mathematics by Title
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C++ and Fortran 77 Timing Comparisons
(199301)Recently there has been considerable debate within the scientific computation community over the suitability of C++ for large scale numerical computation. This note reports on timing studies of Fortran 77 and C++ conducted ... 
Calculation and Implementation of the Gradient of the DSO Objective Function for the General Acoustic Model
(199303)We present in this paper the computation of the DSO objective function in the general acoustic case. In this model, the density and the velocity are functions of the space variables. We use a perturbational approach, ... 
Cardinal Interpolating Multiresolutions
(199011) 
Case Studies For a FirstOrder Fobust Nonlinear Programming
(200606)In this paper, we conduct three case studies to assess the effectiveness of a recently proposed firstorder method for robust nonlinear programming (Ref. 1). Three robust nonlinear programming problems were chosen from the ... 
Characteristic Shape Sequences for Measures on Images
(200611)Researchers in many fields often need to quantify the similarity between images using metrics that measure qualities of interest in a robust quantitative manner. We present here the concept of image dimension reduction ... 
CharacteristicGalerkin Methods for Contaminant Transport with NonEquilibrium Adsorption Kinetics
(199208)A procedure based on combining the method of characteristics with a Galerkin finite element method is analyzed for approximating reactive transport in groundwater. In particular, we consider equations modeling contaminant ... 
ClientServer Component Architecture for Scientific Computing
(200306)In a Distributed Computing Environment software components dispersed on a variety of computer platforms communicate transparently with each other to emulate a single computer platform. One distributed component framework ... 
Clique Generalizations and Related Problems
(201605)A large number of realworld problems can be model as optimization problems in graphs. The clique model was introduced to aid the study of network structure for social interaction. Each vertex represented an actor and the ... 
Coherent Interferometric Imaging, Time Gating and Beamforming
(201012)Coherent interferometric imaging is based on the backpropagation of local spacetime cross correlations of array data and was introduced in order to improve images when the medium between the array and the object to be ... 
Coherent Noise Suppression in Velocity Inversion
(1999)Data components with welldefined moveout other than primary reflections are sometimes called coherent noise. Coherent noise makes velocity analysis ambiguous, since no single velocity function explains incompatible moveouts ... 
Collaborative Spectrum Sensing from Sparse Observations Using Matrix Completion
(200912)In cognitive radio, spectrum sensing is a key component to detect spectrum holes (i.e., channels not used by any primary users). Collaborative spectrum sensing among the cognitive radio nodes is expected to improve the ... 
ColumnSecant Update Technique for Solving Systems of Nonlinear Equations
(199110)This paper presents a QR update implementation of the successive column correction (SCC) method and a columnsecant modification of the SCC method, which is called the CSSCC method. The computational cost of the QR update ... 
Comparing Objective Functions for Velocity Inversion
(199310)The success of automatic velocity inversion is highly dependent on the numerical tractability of the optimization problem which defines the solution. The purpose of this paper is to compare the objective (cost) functions ... 
Comparing Problem Formulation for Coupled Sets of Component
(200711)In this paper several formulations and comparative test results are presented for problems involving the general paradigm of coupled sets of components. This paradigm is general enough to include systems of systems (SoS) ... 
A Comparison of High Order Interpolation Nodes for the Pyramid
(2015)The use of pyramid elements is crucial to the construction of efficient hexdominant meshes [M. Bergot, G. Cohen, and M. Duruflé, J. Sci. Comput., 42 (2010), pp. 345381]. For conforming nodal finite element methods with ... 
Comparison of Reduced Models for Blood Flow Using Runge–Kutta Discontinuous Galerkin Methods
(201511)Reduced, or one–dimensional blood flow models take the general form of nonlinear hyperbolic systems, but differ greatly in their formulation. One class of models considers the physically conserved quantities of mass and ... 
Comparison of Two Sets of Firstorder Conditions as Bases of InteriorPoint Newton Methods for Optimization with Simple Bounds
(200106)In this paper, we compare the behavior of two Newton interiorpoint methods derived from two different firstorder necessary conditions for the same nonlinear optimization problem with simple bounds. One set of conditions ... 
Complex Flow and Transport Phenomena in Porous Media
(201004)This thesis analyzes partial differential equations related to the coupled surface and subsurface flows and develops efficient high order discontinuous Galerkin (DG) methods to solve them numerically. Specifically, the ... 
Compositional heterogeneity near the base of the mantle transition zone beneath Hawaii
(2018)Global seismic discontinuities near 410 and 660 km depth in Earth’s mantle are expressions of solidstate phase transitions. These transitions modulate thermal and material fluxes across the mantle and variations in their ... 
Compressive Sensing Based High Resolution Channel Estimation for OFDM System
(201108)Orthogonal frequency division multiplexing (OFDM) is a technique that will prevail in the next generation wireless communication. Channel estimation is one of the key challenges in OFDM, since highresolution channel ...