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  • 2/27/2019 Colloquium

    Sentiment and Speculation in a Market with Heterogeneous Beliefs

    CMSA 20 Garden Street, Cambridge, MA, United States

    Speaker: Ian Martin (LSE) Title: Sentiment and Speculation in a Market with Heterogeneous Beliefs Abstract: We present a dynamic model featuring risk-averse investors with heterogeneous beliefs. Individual investors have stable beliefs and risk aversion, but agents who were correct in hindsight become relatively wealthy; their beliefs are overrepresented in market sentiment, so “the market” is bullish following good news and […]

  • 3/6/2019 Colloquium

    A sharp transition for Gibbs measures associated to the nonlinear Schrödinger equation

    CMSA 20 Garden Street, Cambridge, MA, United States

    Speaker: Philippe Sosoe (Cornell) Title: A sharp transition for Gibbs measures associated to the nonlinear Schrödinger equation Abstract: In 1987, Lebowitz, Rose and Speer (LRS) showed how to construct formally invariant measures for the nonlinear Schrödinger equation on the torus. This seminal contribution spurred a large amount of activity in the area of partial differential equations […]

  • 2/13/2019 Colloquium

    On the geometry and topology of initial data sets in General Relativity

    CMSA 20 Garden Street, Cambridge, MA, United States

    Speaker: Greg Galloway (University of Miami) Title: On the geometry and topology of initial data sets in General Relativity Abstract: A theme of long standing interest (to the speaker!) concerns the relationship between the topology of spacetime and the occurrence of singularities (causal geodesic incompleteness). Many results concerning this center around the notion of topological censorship, which […]