Now showing items 338-357 of 370

    • Testing holomorphy on curves 

      Fridman, Buma L.; Ma, Daowei (Springer, 2012-11)
      For a domain D aS, a"e (n) we construct a continuous foliation of D into one-real-dimensional curves such that any function f a C (1)(D) which can be extended holomorphically into some neighborhood of each curve in the ...
    • Testing homogeneity of a parameter matrix some of the rows of which are under synchronized order restrictions 

      Banerjee, Arijit (Wichita State University, 2011-12)
      This research considers a multiple multivariate linear regression model with a parameter matrix some of the rows of which are constrained by synchronized order restrictions. The test on the homogeneity of the parameter ...
    • Testing homogeneity of a parameter matrix with some rows constrained by synchronized order restrictions 

      Banerjee, Arijit (Wichita State University. Graduate School, 2010-04-23)
      A multivariate linear regression model Y~N (βM',Σ) is considered where some of the rows in the coefficient matrix β are constrained by synchronized order restrictions. A test scheme is derived for the homogeneity of the ...
    • The effect of small time delays on large-scale systems 

      Almutairi, Shahah (Wichita State University, 2018-12)
      In this research, model reduction techniques are used to design optimal control strategies with low sensitivity in order to model uncertainty. The source of uncertainty encountered is the time delay, and the reduced-order ...
    • The Hopf Conjecture with abelian symmetries 

      Chan, Jacqueline (Wichita State University, 2021-05)
      The Hopf Conjecture states that for closed, orietable, even-dimensional manifolds, the Euler characteristic is strictly positive. Results due independently to P uttmann and Searle [13] and Rong [14], and due to Rong and ...
    • The NOvA far detector data acquisition system 

      Biery, Kurt; Guglielmo, Gerald; Habig, Alec; Illingworth, Robert; Kasahara, Susan; Meyer, Holger; Kwarciany, Rick; Lu, Qiming; Lukhanin, Gennadiy; Magill, Stephen; Mathis, Mark; Moren, Adam; Mualem, Leon; Muether, Mathew; Norman, Andrew; Paley, Jonathan; Perevalov, Denis; Piccoli, Luciano; Rechenmacher, Ronald; Shanahan, Peter; Suter, Louise; Waldron, Abigail; Zalesak, Jaroslav (2014)
      Biery, Kurt, et al. "The NOvA Far Detector Data Acquisition System." Journal of Physics: Conference Series 513 no 1. doi:10.1088/1742-6596/513/1/012041.
    • Theoretical results in inverse problems for size, solvability, and uniqueness in the p-n junction and doping profile of semiconductors 

      Myers, Joseph Kenneth (2006-05)
      We present an overview of mathematical models for electrons and holes in semiconductors. We use these to pose some inverse problems for determining the doping profile of a semiconductor. We establish the solvability of ...
    • A three-dimensional inverse gravimetry problem for ice with snow caps 

      Isakov, Victor, 1947-; Leung, Shingyu; Qian, Jianliang (American Institute of Mathematical Sciences, 2013-05)
      We propose a model for the gravitational field of a floating iceberg D with snow on its top. The inverse problem of interest in geophysics is to find D and snow thickness g on its known (visible) top from remote measurements ...
    • Time varying isotropic vector random fields on sphere 

      Ma, Chunsheng (Springer, 2017-12)
      For a vector random field that is isotropic and mean square continuous on a sphere and stationary on a temporal domain, this paper derives a general form of its covariance matrix function and provides a series representation ...
    • Time-varying isotropic vector random fields on compact two-point homogeneous spaces 

      Ma, Chunsheng; Malyarenko, Anatoliy A. (Springer, 2018)
      A general form of the covariance matrix function is derived in this paper for a vector random field that is isotropic and mean square continuous on a compact connected two-point homogeneous space and stationary on a temporal ...
    • Torus actions on simply connected 4-manifolds 

      Harper, Mia B. (Wichita State University, 2017-05)
      In this paper, we study smooth effective actions of the 2-dimensional torus group T 2 ~= SO(2)xSO(2) on simply connected, closed 4-dimensional manifolds. Using the conical orbit space of the quotient, a cross-sectioning ...
    • Torus actions, maximality, and non-negative curvature 

      Escher, Christine; Searle, Catherine (De Gruyter, 2021-09-03)
      Let $ℳ_0^n$ be the class of closed, simply connected, non-negatively curved Riemannian n-manifolds admitting an isometric, effective, isotropy-maximal torus action. We prove that if $M \in ℳ_0^n$ then M is equivariantly ...
    • Translating vortex pairs with prescribed profiles 

      Albrecht, Trenton R. (Wichita State University. Graduate School, 2010-04-23)
      We generate translating vortex pairs with smooth or more arbitrary profiles that reflect modern vortex pairs being generated using prescribed domains of vorticity. Instead of prescribing the domain, we fix the area of the ...
    • Two contributions to order restricted inferences 

      Echart, Alexandra K. (Wichita State University, 2018-12)
      We are proposing two separate problems from order restricted inferences. The rst is a one-sided test for stochastic ordering of two distribution functions that protects against false positive conclusions because of model ...
    • Typical points, invariant measures, and dimension for rational maps on the Riemann sphere 

      Kaufmann, Jacie L. (2006-05)
      We present three original results for the dynamics of rational maps on the Riemann sphere. Using methods from dimension and ergodic theory, we discuss generalized physical measures and prove their existence for hyperbolic ...
    • Unbiasedness of homogeneity test of normal mean vectors under multivariate order restrictions 

      Hamdan, Mustafa (Wichita State University, 2017-05)
      This dissertation considers homogeneity test for comparing multivariate normal populations with generalized order restricted alternative hypothesis. The framework in this dissertation presents a generalized multivariate ...
    • Unbiasedness of LRT on the homogeneity of means in MANOVA under general order restrictions 

      Hamdan, Mustafa; Hu, Xiaomi (Elsevier, 2019-05)
      In this paper a likelihood ratio test is developed through matrix projections for the hypothesis on the homogeneity of mean vectors in MANOVA. It is assumed that the mean vectors are under a general multivariate order ...
    • Understanding the impact of improved hadron production measurements on accelerator neutrino particle beam flux uncertainties 

      Reed, Tim (Wichita State University, 2019-12)
      One of the greatest challenges for neutrino experimentation is understanding the potential uncertainties in the collected data and models that are used for the Monte Carlo simulations. The neutrino-nucleus hadronic cross ...
    • Unexpected radial limit 

      Entekhabi, Mozhgan (Nora) (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. ...
    • Uniqueness and stability in the Cauchy Problem 

      Isakov, Victor, 1947- (Springer, 2017)
      In this chapter we formulate and in many cases prove results on the uniqueness and stability of solutions of the Cauchy problem for general partial differential equations. One of the basic tools is Carleman-type estimates. ...