Now showing items 44-63 of 375

• #### A computing method for multivariate isotonic regression ﻿

(Wichita State University, 2010-12)
• #### Conformal deformation of a conic metric ﻿

(Wichita State University, 2011-05)
The problem studied here focuses on a compact manifold M without boundary in which the Riemannian metric g is on Λ = M – {p1, p2,…,pκ}. Near the pi 's, g has a particular type of singularity in which locally M = (0, δ)x ...
• #### Conformally variational riemannian invariants ﻿

(American Mathematical Society, 2019-06-01)
Conformally variational Riemannian invariants (CVIs), such as the scalar curvature, are homogeneous scalar invariants which arise as the gradient of a Riemannian functional. We establish a wide range of stability and ...
• #### Conjectures in inverse boundary value problems for quasilinear elliptic equations ﻿

(Department of Mathematics of the Universidad de la Frontera Temuco-Chile and the Department of Mathematics of the Universidade Federal de Pernambuco, Recife-Brazil, 2005-12)
Inverse boundary value problems originated in early 80’s, from the contribution of A.P. Calderon on the inverse conductivity problem [C], in which one attempts to recover the electrical conductivity of a body by means ...
• #### Conjugate loci of pseudo-Riemannian 2-step nilpotent Lie groups with nondegenerate center ﻿

(Springer, 2005)
We determine the complete conjugate locus along all geodesics parallel or perpendicular to the center (Theorem 2.3). When the center is one-dimensional we obtain formulas in all cases (Theorem 2.5), and when a certain ...
• #### Consistent Estimation of Distributions with Type II Bias with Applications in Competing Risks Problems ﻿

(Institute of Mathematical Statistics, 2004-02)
A random variable X is symmetric about 0 if X and -X have the same distribution. There is a large literature on the estimation of a distribution function (DF) under the symmetry restriction and tests for checking this ...
• #### Consistent estimation of survival functions under uniform stochastic ordering; the k-sample case ﻿

(Elsevier B.V., 2016-02)
Let S-1, S-2, ... , S-k be survival functions of life distributions. They are said to be uniformly stochastically ordered, S-1 <=(uso) S-2 <=(uso) ... <=(uso) S-k, if S-i/Si+1 is a survival function for 1 <= i <= k - 1. ...
• #### Constrained pole placement by linear quadratic modification ﻿

(IEEE, 1991-06-26)
A noniterative method is introduced that will enable the designer to find an optmal one step state feedback controller. The controller will place the eigenvalues of the closed loop system in a specified disk.
• #### Constraints on oscillation parameters from $\nu_e$ appearance and $\nu_\mu$ disappearance in NOvA ﻿

(American Physical Society, 2017-06-05)
Results are reported from an improved measurement of $\nu_\mu \rightarrow \nu_e$ transitions by the NOvA experiment. Using an exposure equivalent to $6.05\times10^{20}$ protons-on-target 33 $\nu_e$ candidates were observed ...
• #### Constraints on the distance moduli, helium, and metal abundances, and ages of globular clusters from their RR Lyrae and non-variable horizontal branch stars. II. multiple stellar populations in 47 Tuc, M3, and M13 ﻿

(IOP Publishing, 2017-11-10)
We present a new set of horizontal branch (HB) models computed with the MESA stellar evolution code. The models adopt alpha-enhanced Asplund et al. metal mixtures and include the gravitational settling of He. They are used ...
• #### Construction and solution of an inverse problem posed by "Piekara’s Chair" ﻿

(Wichita State University, 2008-05)
The article "Piekara's Chair: Mechanical Model for Atomic Energy Levels" by Zofia Golab-Meyer presents a model of the real-world problem of determining classical energy states suitable for high school or undergraduate ...
• #### Construction industrial multivariate statistical analysis based on real estate market in USA ﻿

(Wichita State University, 2016-04-29)
This project mainly focus on how the land market value, in terms of GDP, CPI, construction cost index and unemployment rate, inflation rate, population and purchasing manage index, enables a relationship with the real ...
• #### Continuation of solutions of elliptic systems from discrete sets with application to geometry of surfaces ﻿

(Wichita State University, 2018-07)
We obtain new estimates of stability for continuation of solutions of elliptic inequali- ties | ∂u|2 < = a|u|2 from finite discrete sets. For this we use Hormander's type of Carleman estimates for ∂-bar with boundary ...
• #### A convergent algorithm for a generalized multivariate isotonic regression problem ﻿

(Springer, 2012-02)
Sasabuchi et al. (Biometrika 70(2):465-472, 1983) introduces a multivariate version of the well-known univariate isotonic regression which plays a key role in the field of statistical inference under order restrictions. ...
• #### Convex configurations for solutions to semilinear elliptic problems in convex rings ﻿

(Taylor & Francis Group, LLC, 2006-05)
For a given convex ring and an L 1 function f:Ω × → + we show, under suitable assumptions on f, that there exists a solution (in the weak sense) to with {x Ω: u(x) > s} Ω1 convex, for all s (0, M).
• #### Covariance matrices for second-order vector random fields in space and time ﻿

(IEEE, 2011-05-01)
This paper deals with vector (or multivariate) random fields in space and/or time with second-order moments, for which a framework is needed for specifying not only the properties of each component but also the possible ...
• #### Covariance matrix functions of isotropic vector random fields ﻿

(Taylor & Francis Group, 2014-05-15)
An isotropic scalar or vector random field is a second-order random field in (d > 2), whose covariance function or direct/cross covariance functions are isotropic. While isotropic scalar random fields have been well developed ...
• #### Covariance structures of Gaussian and log-Gaussian vector stochastic processes ﻿

(Wichita State University, 2012-12)
Although the covariance structures of univariate Gaussian and log Gaussian stochastic processes have been extensively studied in the past few decades, the development of covariance structures for Gaussian and log-Gaussian ...
• #### Coverage probability of tolerance levels ﻿

(Wichita State University, 2018-12)
In this thesis the ideas of the tolerance limit and coverage probabilities are explored in the context of the A-basis and B-basis for composite materials. The breaking strength of composite materials are random variables ...
• #### Crack detection in a three dimensional body ﻿

(2006-05)
We propose a method of analyzing a crack in a three dimensional body. We treat the problem as an inverse problem and apply Green’s Theorem, Trace Theorem, and the Fredholm Alternative. We model the problem using Helmholtz ...