558 research outputs found

    Souvenirs et paysages d'Orient. Smyrne -Éphèse-Magnésie- Constantinople-Scio. Par Maxime du Paris chez. Arthus Bertrand, Libraire Editeur de la Société géographique 1848.

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    Preface: by the authorDedication: by the author to B.F., S. ad. 5Content description: Detailed contentsPagination: PP10+380PVolumes: 1Text Genre:Prose / Journa

    Equilibrium transition study for a hybrid MAV

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    Wind tunnel testing was performed on a VTOL aircraft in order to characterize longitudinal flight behavior during an equilibrium transition between vertical and horizontal flight modes. Trim values for airspeed, pitch, motor speed and elevator position were determined. Data was collected by independently varying the trim parameters, and stability and control derivatives were identified as functions of the trim pitch angle. A linear fractional representation model was then proposed, along with several methods to improve longitudinal control of the aircraft

    On the contraction properties of a pseudo-Hilbert projective metric

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    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space E and study the contraction properties of the projective maps associated with positive linear operators on E. More precisely, we prove that any positive linear operator acts projectively as a 1-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity

    On the contraction properties of a pseudo-Hilbert projective metric

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    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space EE and study the contraction properties of the projective maps associated with positive linear operators on EE. More precisely, we prove that any positive linear operator acts projectively as a 11-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity.Comment: 11 pages, Comments and remarks are welcome

    On the contraction properties of a pseudo-Hilbert projective metric

    No full text
    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space E and study the contraction properties of the projective maps associated with positive linear operators on E. More precisely, we prove that any positive linear operator acts projectively as a 1-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity

    On the contraction properties of a pseudo-Hilbert projective metric

    No full text
    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space E and study the contraction properties of the projective maps associated with positive linear operators on E. More precisely, we prove that any positive linear operator acts projectively as a 1-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity

    On the contraction properties of a pseudo-Hilbert projective metric

    No full text
    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space E and study the contraction properties of the projective maps associated with positive linear operators on E. More precisely, we prove that any positive linear operator acts projectively as a 1-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity

    On the contraction properties of a pseudo-Hilbert projective metric

    No full text
    In this note, we define a bounded variant on the Hilbert projective metric on an infinite dimensional space E and study the contraction properties of the projective maps associated with positive linear operators on E. More precisely, we prove that any positive linear operator acts projectively as a 1-Lipschitz map relatively to this distance. We also show that for a positive linear operator, strict projective contraction is equivalent to a property called uniform positivity

    Les procédés d'exposition et de développement collectif dans un forum pédagogique : le cas Maxime

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    @inproceedings{cn-Lucas-2005, author = {Lucas, Nadine}, title = {Les procédés d'exposition et de développement collectif dans un forum pédagogique : le cas Maxime}, booktitle = {Symfonic}, year = {2005}, editor = {Bruillard, Eric and Sidir, Mohamed}, address = {Amiens}, month = {janvier} }National audienc
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