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Browsing by Subject "Stærðfræðigreining"

Browsing by Subject "Stærðfræðigreining"

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    Expedited Design Closure of Antenna Input Characteristics by Trust Region Gradient Search and Principal Component Analysis 
    Tomasson, Jon Atli; Koziel, Slawomir; Pietrenko-Dabrowska, Anna (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Optimization-based parameter tuning has become an inherent part of contemporary antenna design process. For the sake of reliability, it is typically conducted at the level of full-wave electromagnetic (EM) simulation models. This may incur considerable ...
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    Polynomial Approximation and Pluripotential Theory 
    Sigurðardóttir, Álfheiður Edda (University of Iceland, School of engineering and natural sciences, Faculty of physical sciences, 2024-09)
    We study the rings of polynomials in several complex variables whose exponents are restricted to the dilates of a compact convex set that contains the origin. We study the properties of weighted extremal functions associated to these polynomial rings, ...
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    Restricted and weighted polynomial approximations 
    Snorrason, Bergur (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2024-10)
    The thesis contains material from papers studying polynomial approximations of holomorphic functions in several variables. These approximations are weighted, in the sense that the norm used to assess the approximation is weighted, and polynomials used ...
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    Rule Formats for Nominal Process Calculi 
    Aceto, Luca; Fabregas, Ignacio; Garcia-Perez, Alvaro; Ingolfsdottir, Anna; Ortega-Mallen, Yolanda (2019-10-14)
    The nominal transition systems (NTSs) of Parrow et al. describe the operational semantics of nominal process calculi. We study NTSs in terms of the nominal residual transition systems (NRTSs) that we introduce. We provide rule formats for the specifications ...