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DTSTAMP:20250127T090800
DTSTART;TZID=America/Detroit:20250404T150000
DTEND;TZID=America/Detroit:20250404T160000
SUMMARY:Meeting:DocDi
DESCRIPTION:The DocDi Group is a collaborative forum\, open to both students and faculty\, who share an interest in the areas of Field Linguistics\, Fieldwork Methods\, Language Documentation\, and Language Description. Serving as an invaluable platform for friendly intellectual exchange\, DocDi promotes an interactive environment where members have the opportunity to present their respective research\, share their experiences\, and discuss innovative ideas and tools aimed at augmenting the effectiveness of fieldwork and documentary/descriptive projects.
UID:131900-21869389@events.umich.edu
URL:https://events.umich.edu/event/131900
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Discussion Group,Language Documentation
LOCATION:Off Campus Location
CONTACT:
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DTSTAMP:20250323T143157
DTSTART;TZID=America/Detroit:20250404T150000
DTEND;TZID=America/Detroit:20250404T160000
SUMMARY:Lecture / Discussion:HET Seminar | Lifting Swing Surfaces to AdS
DESCRIPTION:The entanglement entropy for regions in a BMS field theory living at null infinity has been proposed to be holographically dual to certain ‘swing surfaces’ in flat space. We lift this construction to AdS/CFT and revisit both bulk and boundary aspects of this proposal.
UID:130843-21867131@events.umich.edu
URL:https://events.umich.edu/event/130843
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:High Energy Theory Seminar,Physics
LOCATION:Randall Laboratory - 3481
CONTACT:
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DTSTAMP:20250212T125455
DTSTART;TZID=America/Detroit:20250404T150000
DTEND;TZID=America/Detroit:20250404T160000
SUMMARY:Workshop / Seminar:Higher-Categorical Associahedra (Combinatorics Seminar)
DESCRIPTION:In 2017\, Bottman introduced a family of posets called 2-associahedra as a tool for investigating functoriality properties of Fukaya categories\, and he conjectured that they could be realized as face posets of convex polytopes. We introduce a family of posets called categorical n-associahedra\, which naturally extend Bottman's 2-associahedra and the classical associahedra. Categorical n-associahedra give a combinatorial model for the poset of strata of a compactified real moduli space of a tree arrangement of affine coordinate subspaces. We construct a family of complete polyhedral fans\, called velocity fans\, whose coordinates encode the relative velocities of pairs of colliding coordinate subspaces\, and whose face posets are the categorical n-associahedra. In particular\, this gives the first fan realization of 2-associahedra. In the case of the classical associahedron\, the velocity fan specializes to the normal fan of Loday's realization of the associahedron.  Time permitting\, we will discuss current investigations of projectivity of velocity fans.  This is joint work with Nathaniel Bottman and Daria Poliakova.
UID:129315-21862441@events.umich.edu
URL:https://events.umich.edu/event/129315
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
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