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Filtering by: Creator McDaniel, Mina R. Remove constraint Creator: McDaniel, Mina R. Academic Affiliation Mathematics Remove constraint Academic Affiliation: Mathematics Committee Member Ossiander, Mina Remove constraint Committee Member: Ossiander, Mina

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  • Two-grid a-priori and a-posteriori error analysis for coupled elliptic and parabolic systems with applications to flow and transport problems

    Creator:
    Klein, Viviane
    Abstract:
    We develop several a-priori and a-posteriori error estimates for two-grid finite element discretization of coupled elliptic and parabolic systems with a set of parameters P. We present numerical results that verify the convergence order of the numerical schemes predicted by the a-priori estimates. We present numerical results that verify the...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 5.3 Illustration of a uniform refinement in 1D with r = 2. Plotted are the basis functions ψ1(x

  • Revenue-based spectrum management via Markov decision process

    Creator:
    Zhu, Pingan
    Abstract:
    We consider the problem of wireless spectrum management in cognitive wireless networks that maximizes the revenue for a spectrum operator. Specifically, we study the problem on how a wireless spectrum operator can optimally allocate its limited spectrum to various classes users/devices who pay differently for their spectrum per unit time....
    Resource Type:
    Masters Thesis
    Full Text:
    Markov Decision Process Abstract approved: Thinh P. Nguyen Mina E. Ossiander We consider the

  • Renewal risk processes with stochastic returns on investments : a unified approach and analysis of the ruin probabilities

    Creator:
    Constantinescu, Corina D.
    Abstract:
    This thesis considers one of the classical problems in the actuarial mathematics literature, the decay of the probability of ruin in the collective risk model. The claim number process N(t) is assumed to be a renewal process, the resulting model being referred as the Sparre Andersen risk model. The inter-claim...
    Resource Type:
    Dissertation
    Full Text:
    patience and confidence in my abilities. Special thanks to professor Mina Ossiander and professor Ed

  • Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

    Creator:
    Costa, Timothy B.
    Abstract:
    In this work we consider two multiscale applications with tremendous computational complexity at the lower scale. First, we examine a model for charge transport in semicon- ductor structures with heterojunction interfaces. Due to the complex physical phenomena at the interface, the model at the design scale is unable to adequately...
    Resource Type:
    Dissertation
    Full Text:
    my committee members Dr. Ralph Showalter, Dr. Robert Higdon, Dr. Mina Ossiander and Dr. Dorthe

  • Computing entropy for Z²-actions

    Creator:
    Pierce, Larry A.
    Abstract:
    For a certain class of Z²-actions, we provide a proof of a conjecture that the ratio of the Perron eigenvalues of the transfer matrices of the free boundary restrictions converge to the entropy of that action. Also, a novel method for computing the entropy of Z²-actions is conjectured.
    Resource Type:
    Dissertation
    Full Text:
    , for r ≥ i and s ≥ j, we will define α (r,s) (i,j) to be the “rectangle” which consists of vertices

  • Middle school teachers’ use of a formative feedback guide in mathematics problem solving instruction

    Creator:
    Strowbridge, Jessica
    Abstract:
    The purpose of this study was to address the implementation fidelity of one part of a professional development model developed by the Northwest Regional Educational Laboratory (NWREL). Specifically, this research investigates middle school teachers’ use of a formative feedback guide developed by NWREL staff, examining the reliability with which teachers...
    Resource Type:
    Dissertation
    Full Text:
    . Mina Ossiander. I would like to thank the ten middle school teachers and their students who were