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New physics study results reported from A.E. Allahverdyan et al

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  • New physics study results reported from A.E. Allahverdyan et al

    News of Science
    March 29, 2009


    PHYSICS;
    New physics study results reported from A.E. Allahverdyan et al



    According to recent research from Yerevan, Armenia, "Selection in a
    time-periodic environment is modeled via the two-player replicator
    dynamics. For sufficiently fast environmental changes, this is reduced
    to a multiplayer replicator dynamics in a constant environment."

    "The two-player terms correspond to the time-averaged payoffs, while
    the three- and four-player terms arise from the adaptation of the
    morphs to their varying environment. Such multiplayer terms can induce
    a stable polymorphism," wrote A.E. Allahverdyan and colleagues.

    The researchers concluded: "The establishment of the polymorphism in
    partnership games [genetic selection] is accompanied by decreasing
    mean fitness of the population."

    Allahverdyan and colleagues published their study in Physical Review
    Letters (Replicators in a Fine-Grained Environment: Adaptation and
    Polymorphism. Physical Review Letters, 2009;102(5):8102).

    For additional information, contact A.E. Allahverdyan, Yerevan Physics
    Institute, Alikhanian Bros St. 2, Yerevan 375036, Armenia.

    Publisher contact information for the journal Physical Review Letters
    is: American Physical Society, One Physics Ellipse, College Pk, MD
    20740-3844, USA.
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