Sökning: "derivations"

Visar resultat 1 - 5 av 69 avhandlingar innehållade ordet derivations.

  1. 1. Optimal Detectors for Transient Signal Families and Nonlinear Sensors : Derivations and Applications

    Författare :Daniel Asraf; Mats Gustafsson; Anders Grennberg; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; optimal detection; transient signals; noncoherent detection; unknown arrival time; ultrasonic nondestructive testing; nonlinear sensor; stochastic resonance; Signalbehandling; Signal processing; Signalbehandling; Signal Processing; signalbehandling;

    Sammanfattning : This thesis is concerned with detection of transient signal families and detectors in nonlinear static sensor systems. The detection problems are treated within the framework of likelihood ratio based binary hypothesis testing. LÄS MER

  2. 2. Tangential Derivations, Hilbert Series and Modules over Lie Algebroids

    Författare :Yohannes Tadesse; Rolf Källström; Michael Granger; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Tangential Derivations; Monomials; Multiplier Ideals; Lie Algebroids; Hilbert series; Mathematics; matematik;

    Sammanfattning : Let A/k be a local commutative algebra over a field k of characteristic 0, and T_{A/k} be the module of k-linear derivations on A. We study, in two papers, the set of k-linear derivations on A which are tangential to an ideal I of A (preserves I), defining an A-submodule T_{A/k}(I) of T_{A/k}, which moreover is a k-Lie subalgebra. LÄS MER

  3. 3. La formation agentive en français : les composés [VN/A/Adv/P]N/A et les dérivés V-ant, V-eur et V-oir(e)

    Författare :Maria Rosenberg; Olof Eriksson; Mats Forsgren; Georgette Dal; Bernard Fradin; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; agentive formations; agent nouns; compounds; contrastive; derivations; diachrony; French; instrument; lexeme; morphology; polysemy of agent; productivity; semantic patterns; semantics; Swedish; synchrony; VN compounds; verb stem; word formation; French language; Franska språket; French; franska;

    Sammanfattning : This study addresses the French morphological construction [VN/A/Adv/P]N/A. The main objectives are to posit a single rule for its formation and to question the implications of the agent polysemy. The theoretical framework is lexeme-based morphology, which adheres to weak lexicalism. LÄS MER

  4. 4. Noncommutative Riemannian Geometry of Twisted Derivations

    Författare :Kwalombota Ilwale; Joakim Arnlind; Sergei Silvestrov; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : A twisted derivation is a generalized derivative satisfying a twisted version of the ordinary Leibniz rule for products. In particular, a (σ, τ )-derivation on an algebra A, is a derivation where Leibniz rule is twisted by two endomorphisms σ and τ on A. LÄS MER

  5. 5. The module of derivations preserving a monomial ideal

    Författare :Yohannes Tadesse; Rolf Källström; Rikard Bøgvad; Demissu Gemeda; Elizabeth Wulcan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER