Mathematics, Statistics, and Physics
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Vector stochastic processes with Polya-Type correlation structure
(Wiley, 2017-08)This paper introduces a simple method to construct a stationary process on the real line with a Polya-type covariance function and with any infinitely divisible marginal distribution, by randomising the timescale of the ... -
Orientation and symmetries of Alexandrov spaces with applications in positive curvature
(Springer, 2017-04)We develop two new tools for use in Alexandrov geometry: a theory of ramified orientable double covers and a particularly useful version of the Slice Theorem for actions of compact Lie groups. These tools are applied to ... -
Learning quantum annealing
(Rinton Press, Inc., 2017-05-01)We propose and develop a new procedure, whereby a quantum system can learn to anneal to a desired ground state. We demonstrate successful learning to produce an entangled state for a two-qubit system, then demonstrate ... -
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) -> nu(e) transitions by the NOvA experiment. Using an exposure equivalent to 6.05 x 10(20) protons on target, 33 nu(e) candidates are observed with a background ... -
Prediction of land market value based on the real estate market in USA
(Wichita State University, 2017-04-28)The Land Market Value, defined as the total value of land and quantity data are derived from data on housing values, is an important factor in the estimation of structure costs using price indexes for housing and construction ... -
Unexpected radial limit
(Wichita State University, 2017-04-28)Consider a bounded solution ƒ of the prescribed mean curvature equation over a bounded domain Ω ⊂ R² which has a corner at which has a corner at (0, 0) of size 2α and assume the mean curvature of the graph of ƒ is bounded. ... -
Measurement of the neutrino mixing angle theta(23) in NOvA
(American Physical Society, 2017-04-10)This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05 x 10(20) protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The ... -
Radial limits of capillary surfaces at corners
(Pacific Journal of Mathematics, 2017-05)Consider a solution f is an element of C-2(Omega) of a prescribed mean curvature equation div del f/root 1+vertical bar del f vertical bar(2) = 2H (x, f) in Omega subset of R-2, where Omega is a domain whose boundary ... -
On cusp solutions to a prescribed mean curvature equation
(Pacific Journal of Mathematics, 2017-05)The nonexistence of "cusp solutions" of prescribed mean curvature boundary value problems in Omega x R when Omega is a domain in R-2 is proven in certain cases and an application to radial limits at a corner is mentioned. -
Hydrogenation of carbon dioxide over K-Promoted FeCo bimetallic catalysts prepared from mixed metal oxalates
(John Wiley & Sons, Inc., 2017-04-07)The hydrogenation of carbon dioxide over K-promoted FeCo bimetallic catalysts prepared by sequential oxalate decomposition and carburization of FeCo with CO was studied in a fixed-bed reactor at 240 degrees C and 1.2MPa. ... -
Estimation of a star-shaped distribution function
(Taylor & Francis LTD, 2017)A life distribution function (DF) F is said to be star-shaped if F(x)/x is nondecreasing on its support. This generalises the model of a convex DF, even allowing for jumps. The nonparametric maximum likelihood estimation ... -
A comparison of some numerical conformal mapping methods for simply and multiply connected domains
(Wichita State University, 2016-05)This dissertation compares several methods for computing conformal maps from sim-ply and multiply connected domains bounded by circles to target domains bounded by smooth curves and curves with corners. We discuss the use ... -
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 ... -
Recovery of time-dependent volatility in option pricing model
(IOP Publishing Ltd, 2016-09-29)In this paper we investigate an inverse problem of determining the time-dependent volatility from observed market prices of options with different strikes. Due to the non linearity and sparsity of observations, an analytical ... -
Isotonic regression through the Merge and Chop Algorithm for application in statistical inference
(Wichita State University, 2016-05)In this paper, the theory for the application of the Merge and Chop Algorithm are defined and proven. The algorithm is used to find isotonic regressions in more situations than comparable methods. A program is included ... -
Computation of Stokes waves using conformal mapping
(Wichita State University, 2016-05)In this paper we study the time dependent water wave problem for Stokes waves on water of infinite and finite depth using numerical conformal mapping techniques. We begin by briefly reviewing Fornberg's numerical conformal ... -
The effects of individual metal contents on isochrones for C, N, O, Na, Mg, Al, Si, and Fe
(IOP Publishing, 2016-07-28)The individual characteristics of C, N, O, Na, Mg, Al, Si, and Fe on isochrones have been investigated in this study. Stellar models have been constructed for various mixtures in which the content of each element is changed ... -
Fischer-Tropsch synthesis: effect of Cu, Mn and Zn addition on activity and product selectivity of cobalt ferrite
(Royal Society of Chemistry, 2016)The effect of Cu, Mn and Zn addition on cobalt ferrite was investigated for Fischer-Tropsch synthesis (FTS). Oxalate co-precipitation followed by decomposition under inert conditions was used to obtain various metal ... -
Radial limits of bounded nonparametric prescribed mean curvature surfaces
(Pacific Journal of Mathematics, 2016-06-22)Consider a solution f is an element of C-2 (Omega)of a prescribed mean curvature equation div del f/root 1+vertical bar del f vertical bar(2) = 2H(x, f) in Omega, where Omega subset of R-2 is a domain whose boundary ... -
Linear stability of Hill's vortex to axisymmetric perturbations
(Cambridge University Press, 2016-07)We consider the linear stability of Hill's vortex with respect to axisymmetric perturbations. Given that Hill's vortex is a solution of a free-boundary problem, this stability analysis is performed by applying methods of ...
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