Now showing items 1-20 of 262

• #### A class of adaptive multiresolution ultra-weak discontinuous Galerkin methods for some nonlinear dispersive wave equations ﻿

(Society for Industrial and Applied Mathematics Publications, 2022-03-29)
In this paper, we propose a class of adaptive multiresolution (also called the adaptive sparse grid) ultra-weak discontinuous Galerkin (UWDG) methods for solving some nonlinear dispersive wave equations including the ...
• #### A class of stationary random fields with a simple correlation structure ﻿

A stationary random field is often more complicated than a univariate stationary time series, since dependence for a random field extends in all directions, while there is only the natural distinction of past and future ...
• #### A novel Bayesian method for variable selection and estimation in binary quantile regression ﻿

(John Wiley & Sons, Ltd, 2022-07-03)
In this paper, we develop a Bayesian hierarchical model and associated computation strategy for simultaneously conducting parameter estimation and variable selection in binary quantile regression. We specify customary ...
• #### A strong law of large numbers for nonparametric regression ﻿

Suppose (i1,n, ..., in,n) is permutation of (1, ..., n) for each positive integer n such that the order of the indices {1, h., n - 1} in the permutation corresponding to n - 1 is preserved. If {Zn} is a sequence of mean-zero ...
• #### Accessibility and selective stabilization of the principal spin states of iron by pyridyl versus phenolic ketimines: modulation of the (6)a(1) <-> t-2(2) ground-state transformation of the [fen4o2](+) chromophore ﻿

(AMER CHEMICAL SOC, 2012-08-06)
Several potentially tridentate pyridyl and phenolic Schiff bases (apRen and HhapRen, respectively) were derived from the condensation reactions of 2-acetylpyridine (ap) and 2'-hydroxyacetophenone (Hhap), respectively, with ...
• #### Accessing gluon polarization with high-${P}_{T}$ hadrons in SIDIS ﻿

(American Physical Society, 2023-02-27)
A recent global QCD analysis of jet production and other polarized scattering data has found the presence of negative solutions for the gluon helicity distribution in the proton, Δg, along with the traditional Δg > 0 ...
• #### An adaptive multiresolution interior penalty discontinuous Galerkin Method for wave equations in second order form ﻿

(Springer, 2020-10-04)
In this paper, we propose a class of adaptive multiresolution (also called adaptive sparse grid) discontinuous Galerkin (DG) methods for simulating scalar wave equations in second order form in space. The two key ingredients ...
• #### Adjusting neutrino interaction models and evaluating uncertainties using NOvA near detector data ﻿

(EDP Sciences, 2020-12-04)
The two-detector design of the NOvA neutrino oscillation experiment, in which two functionally identical detectors are exposed to an intense neutrino beam, aids in canceling leading order effects of cross-section uncertainties. ...
• #### Ages of 70 dwarfs of three populations in the solar neighborhood: considering O and C abundances in stellar models ﻿

(IOP Publishing Ltd, 2016-12-15)
Oxygen and carbon are important elements in stellar populations. Their behavior refers to the formation history of the stellar populations. C and O abundances would also obviously influence stellar opacities and the overall ...
• #### Ages of dwarfs in the solar neighborhood: considering C and O enhancements ﻿

(Institute of Physics Publishing, 2020-02-04)
Precise stellar ages of stars are necessary to study the evolution of the Milky Way. The age determination is significantly affected by C and O abundances of stars due to their contribution to the overall metallicity and ...
• #### Ages of main-sequence turnoff stars from the GALAH survey ﻿

(American Astronomical Society, 2022-04-01)
Main-sequence turnoff (MSTO) stars are good tracers of Galactic populations since their ages can be reliably estimated from atmospheric parameters. Based on the GALAH survey, we use the Yale rotation evolution code to ...
• #### Algorithm for determining the volatility function in the Black–Scholes model ﻿

Abstract: An algorithm for reconstructing the volatility function in the modified Black–Scholes model is developed. Results of numerical computations are presented. It is shown that adding information about the prices of ...
• #### Almost non-negatively curved 4-manifolds with torus symmetry ﻿

(American Mathematical Society, 2020-08-14)
We prove that if a closed, smooth, simply-connected 4-manifold with a circle action admits an almost non-negatively curved sequence of invariant Riemannian metrics, then it also admits a non-negatively curved Riemannian ...
• #### An adaptive multiresolution ultra-weak discontinuous Galerkin method for nonlinear Schrödinger equations ﻿

This paper develops a high-order adaptive scheme for solving nonlinear Schrödinger equations. The solutions to such equations often exhibit solitary wave and local structures, which make adaptivity essential in improving ...
• #### Annular capillary surfaces ﻿

(Birkhäuser-Verlag, Basel, 2004-05-01)
The meniscus in a symmetric annular capillary tube is investigated. The contact angles on the inner and outer tube surface need not be the same. Existence and qualitative properties of solutions are obtained using an ...
• #### Application of the limit of truncated isotonic regression in optimization subject to isotonic and bounding constraints ﻿

An isotonic regression truncated by confining its domain to a union of its level sets is the isotonic regression in the reduced function space. When some of the weights with which the inner product system is defined go to ...
• #### The BAyesian STellar algorithm (BASTA): a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology ﻿

(Oxford University Press, 2021-09-29)
We introduce the public version of the BAyesian STellar Algorithm (BASTA), an open-source code written in PYTHON to determine stellar properties based on a set of astrophysical observables. BASTA has been specifically ...
• #### Bayesian variable selection and estimation in quantile regression using a quantile-specific prior ﻿

(Springer Science and Business Media Deutschland GmbH, 2022-01-19)
Asymmetric Laplace (AL) specification has become one of the ideal statistical models for Bayesian quantile regression. In addition to fast convergence of Markov Chain Monte Carlo, AL specification guarantees posterior ...
• #### Behavior of some CMC capillary surfaces at convex corners ﻿

(Pacific Journal of Mathematics at the University of California, 2006-04)
We construct examples of nonparametric surfaces z = h(x, y) of zero mean curvature which satisfy contact angle boundary conditions in a cylinder in R3 over a convex domain with corners. When the contact angles for ...
• #### Binomial-chi(2) vector random fields ﻿

(SIAM Publ., 2017)
We introduce a new class of non-Gaussian vector random fields in space and/or time, which are termed binomial-chi(2) vector random fields and include chi(2) vector random fields as special cases. We define a binomial-chi(2) ...