Now showing items 165-184 of 404

    • Inverse doping profile analysis for semiconductor quality control 

      Myers, Joseph Kenneth (Wichita State University, 2009-12)
      Inverse doping pro le problems are linked to inverse conductivity problems under the assumptions of zero space charge and low injection. Unipolar inverse conductivity problems are analyzed theoretically via three uniqueness ...
    • Inverse doping profile analysis for semiconductor quality control 

      Myers, Joseph Kenneth (Wichita State University. Graduate School, 2010-04-23)
      Inverse doping profile problems are linked to inverse conductivity problems under the assumptions of zero space charge and low injection. Unipolar inverse conductivity problems are analyzed theoretically via three uniqueness ...
    • Inverse parabolic problems 

      Isakov, Victor (Springer, 2017)
      In this chapter, we consider the second-order parabolic equation (9.0.1) a0∂tu − div(a∇u) + b · ∇u + cu = f in Q = Ω × (0, T), where Ω is a bounded domain the space Rn with the C2-smooth boundary ∂Ω. In Section 9.6, we ...
    • An inverse problem for a dynamical Lamé system with residual stress 

      Isakov, Victor; Wang, Jenn-Nan; Yamamoto, Masahiro (Society for Industrial and Applied Mathematics, 2007-12-19)
      In this paper we prove a Hölder and Lipschitz stability estimates of determining all coefficients of a dynamical Lamé system with residual stress, including the density, Lam´e parameters, and the residual stress, by three ...
    • Inverse problem for one-dimensional wave equation with matrix potential 

      Khanfer, Ammar; Bukhgeim, Alexander L. (De Gruyter, 2019-01-20)
      We prove a global uniqueness theorem of reconstruction of a matrix-potential a (x, t) {a(x,t)} of one-dimensional wave equation □ u + a u = 0 {\square u+au=0}, x > 0, t > 0 {x>0,t>0}, □ = t 2 - x 2 {\square=\partial-{t}^ ...
    • Inverse problems 

      Isakov, Victor (Springer, 2017)
      In this chapter, we formulate basic inverse problems and indicate their applications. The choice of these problems is not random. We think that it represents their interconnections and some hierarchy.
    • Inverse source problems without (pseudo) convexity assumptions 

      Isakov, Victor; Lu, Shuai (American Institute of Mathematical Sciences, 2018-08)
      We study the inverse source problem for the Helmholtz equation from boundary Cauchy data with multiple wave numbers. The main goal of this paper is to study the uniqueness and increasing stability when the (pseudo)convexity ...
    • An investigation of capillary surfaces at non-convex corners 

      Mitchell, Colm Patric (Wichita State University, 2009-12)
      In this thesis we take a close look at the paper CMC Capillary Surfaces at Reentrant Corners [33] a central feature of which is the question of when does the "central fan" of radial limits exist for a capillary graph in a ...
    • Investigations in single layer gravitational potential 

      Stewart, Darrell Anne (Wichita State University, 2010-05)
    • Isochrones for old (> 5 GYR) stars and stellar populations. I. models for-2.4 <= [Fe/H] <=+0.6, 0.25 <= Y <= 0.33, and-0.4 <= [alpha/Fe] <=+0.4 

      VandenBerg, Don A.; Bergbusch, Peter A.; Ferguson, Jason W.; Edvardsson, Bengt (IOP Publishing, 2014-10-10)
      Canonical grids of stellar evolutionary sequences have been computed for the helium mass-fraction abundances Y = 0.25, 0.29, and 0.33, and for iron abundances that vary from 2.4 to +0.4 (in 0.2 dex increments) when [alpha/Fe] ...
    • Isolated fixed point sets for holomorphic maps 

      Fridman, Buma L.; Ma, Daowei; Vigué, Jean-Pierre (Elsevier SAS, 2006-07)
      We study discrete fixed point sets of holomorphic self-maps of complex manifolds. The main attention is focused on the cardinality of this set and its configuration. As a consequence of one of our observations, a bounded ...
    • Isotonic regression through the Merge and Chop Algorithm for application in statistical inference 

      Skala, Jacob Thomas (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 ...
    • Isotropic covariance matrix functions on all spheres 

      Ma, Chunsheng (Springer International Publishing AG, 2015-08)
      This paper reviews and introduces characterizations of the covariance function on all spheres that is isotropic and continuous, and characterizations of the covariance matrix function on all spheres whose entries are ...
    • Isotropic covariance matrix functions on compact two-point homogeneous spaces 

      Lu, Tianshi; Ma, Chunsheng (Springer, 2019)
      The covariance matrix function is characterized in this paper for a Gaussian or elliptically contoured vector random field that is stationary, isotropic, and mean square continuous on the compact two-point homogeneous ...
    • Isotropic covariance matrix polynomials on spheres 

      Ma, Chunsheng (Taylor & Francis Group, 2016)
      This article characterizes the covariance matrix function of a Gaussian or elliptically contoured vector random field that is stationary, isotropic, and mean square continuous on the sphere. By applying the characterization ...
    • Isotropic positive definite functions on spheres generated from those in Euclidean spaces 

      Nie, Zhihui (Wichita State University, 2019-05)
      In this thesis, author have reviewed the classical characterizations of isotropic positive definite functions on Euclidean spaces and spheres, and had applied them to develop a construction of isotropic positive de nite ...
    • Isotropic random fields with infinitely divisible marginal distributions 

      Wang, Fangfang; Leonenko, Nikolai; Ma, Chunsheng (Taylor & Francis, 2018)
      A simple but efficient approach is proposed in this paper to construct the isotropic random field in (d 2), whose univariate marginal distributions may be taken as any infinitely divisible distribution with finite variance. ...
    • Isotropic two-dimensional pseudo-Riemannian metrics uniquely constructed by a given curvature 

      Bukhgeim, Alexander L.; Khanfer, Ammar (Elsevier, 2018-01)
      We prove a global uniqueness theorem of reconstruction of a two-dimensional pseudo metric by a given Gaussian curvature.
    • Isotropic variogram matrix functions on spheres 

      Du, Juan; Ma, Chunsheng; Li, Yang (SPRINGER, 2013-04)
      This paper is concerned with vector random fields on spheres with second-order increments, which are intrinsically stationary and mean square continuous and have isotropic variogram matrix functions. A characterization of ...
    • K-combined random fields: Basic properties and stochastic orderings 

      Chen, Boming; Wang, Fangfang; Ma, Chunsheng (Taylor and Francis, 2021-05-17)
      This paper introduces the K-combined vector random field, whose finite-dimensional characteristic functions are made up of certain power functions and whose finite-dimensional density functions are comprised of the modified ...