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        "event_title":"The Twist for Positroids",
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        "combined_title":"The Twist for Positroids: Yucong Lei",
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        "description":"Grassmann necklaces describe combinatorially the stratification of the Grassmannian into positroid varieties. Plabic Graphs are finer combinatorial objects than Grassmann necklaces that not only index positroids but also parametrize points in positroids, through the boundary measurement map. Given a reduced plabic graph, we can assign target face labels to each face, and the boundary face labels give us the corresponding Grassmann necklace, which tells us the non-vanishing pluckers in the positroid. It is known that the face label pluckers give a cluster in the cluster structure on the Grassmannian.  A natural question is, what can the internal face labels tell us geometrically? It is not generally true that these are the non-vanishing pluckers in the image of the boundary measurement map for positroids over the complex numbers. In this talk, we introduce the twist map, constructed by Muller-Speyer, which are automorphisms of the positroid variety, taking the image of the boundary measurement map to a torus defined by the non-vanishing of face label pluckers.",
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        "event_title":"Totally real points in the Mandelbrot set",
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        "combined_title":"Totally real points in the Mandelbrot set: Sarah Koch, U(M)",
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        "event_title":"Knight-Hennessy Scholars Info Session: Graduate Scholarships at Stanford",
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        "description":"Join ONSF and Assistant Director of Admissions at the Knight-Hennessy Scholars Program, Christian Tanja, for an information session. Knight-Hennessy is a leadership program at Stanford University. Each year, a group of 100 students with demonstrated leadership and civic commitment, from a wide array of backgrounds, receive full funding for up to three years of graduate education at Stanford and will participate in programming to develop their future leadership skills.\u200b\u00a0Learn more about applying for Knight-Hennessy Scholars at this event!You MUST register outside of Sessions @ Michigan to attend, using this link.There are limited spaces for this event. If you find that you cannot make it, please email osnf.info@umich.edu and inform us so we can update your registration and someone else may take your place.\n",
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