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DTSTART:20070311T020000
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BEGIN:VEVENT
DTSTAMP:20260324T104716
DTSTART;TZID=America/Detroit:20260410T143000
DTEND;TZID=America/Detroit:20260410T163000
SUMMARY:Social / Informal Gathering:Stat Check: Talk\, Test & Trivia
DESCRIPTION:Join Spectrum Center in honoring National Youth HIV & AIDS Awareness Day at Stat Check: Talk\, Test\, & Trivia from 2:30 to 4:30 pm on Friday\, April 10th. Enjoy a meal\, take a spin at our trivia wheel for prizes\, play board & video games with pals\, & make buttons! This is a chance to be in community\, reduce HIV stigma\, and learn about different sexual health resources on and off campus. \n\nThis event is open to the U-M community.\n\nTESTING\nStudents will be able to receive a take-home HIV test. Our usual on-site testing will not be available on April 10.\n\nMORE PRIDE MONTH EVENTS\nhttps://spectrumcenter.umich.edu/pride-month\n\nMORE SPECTRUM CENTER EVENTS\nhttps://spectrumcenter.umich.edu/events
UID:146642-21899390@events.umich.edu
URL:https://events.umich.edu/event/146642
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:LGBT,LGBTQ Graduate Student,Pride Month,Queer Trans Indigenous People of Color-QTIPOC,Well-being
LOCATION:Michigan Union - Spectrum Center (3020)
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260406T120838
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Long-time behavior of optimal mixing in an advection--diffusion shell model*
DESCRIPTION:Abstract:  What is the long-time optimal mixing rate achievable under enstrophy-constrained flows when both advection and diffusion are active? To address this question\, we investigate the long-time behavior of optimal mixing in an advection--diffusion equation using a shell model framework\, a reduced model that captures the essential kinematics of advection and diffusion. Our focus is on quantifying the decay of scalar variance\, measured by the shell-model analogue of the $H^{-1}$ mix-norm\, under enstrophy-constrained stirring. We perform long-time computations using both local-in-time (maximizing the instantaneous mixing rate) and global-in-time (maximizing mixedness at a prescribed final time) optimization strategies. For mixing with diffusion ($\kappa>0$)\, the numerical results for both strategies show that the scalar length scale is eventually limited by a generalized Batchelor scale\, in close agreement with theoretical predictions. In this regime\, the shell-model analogue of the $H^{-1}$ mix-norm decays exponentially in time at a rate independent of the diffusivity $\kappa$. Compared with the purely advective case ($\kappa=0$)\, diffusion significantly enhances the long-time mixing rate\; moreover\, increasing diffusivity further improves mixing efficiency by reducing the prefactor. Guided by these numerical observations\, we derive new conditional lower bounds on the decay rate of the $H^{-1}$ norm that are strictly independent of the diffusivity parameter $\kappa$ when $\kappa>0$. The computed decay rates are consistent with our theoretical bounds.\n\nThis is joint work with Baole Wen\, Christian Seis\, and Charles R. Doering.\n\nContact:  Silas Alben
UID:141683-21889181@events.umich.edu
URL:https://events.umich.edu/event/141683
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260306T133125
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T173000
SUMMARY:Workshop / Seminar:Bike Repair Hours
DESCRIPTION:Does your bike need a tune-up? Need help fixing a flat or getting your gears to shift smoothly? \nSign up for a 30-minute slot and your bike for peer-to-peer bike repair and maintenance. Our volunteers can help you diagnose bike problems\, guide you through repairs\, and provide the tools & materials needed to get you back to riding.\n\nEvery Wednesday from 4-6pm and Friday from 3-5:30pm in the Duderstadt Fabrication Underground (B430-Lower Level) SIGN UP HERE: https://tr.ee/Lp9kLnnfP9\n \nThe Duderstadt Fabrication Underground's Bike Repair rack is available for use during all operation hours (M-F 12-6p). WoW Volunteers will only be there at our dedicated support hours with additional materials (tire patches\, grease\, etc). \n\nThis is NOT a drop-off service: ALL participants are expected to stay and participate in repairs to learn basic bike maintenance with the support of our volunteers. Expect to get your hands dirty and leave feeling more confident in your skills!\n\nIf you are interested in becoming a volunteer at any skill level for our new program\, please email wolverinesonwheels-admin@umich.edu or sign up here: https://docs.google.com/spreadsheets/d/1QVMuOatF-toPc_ky9QIAeeD0ob-ndBGA4uUFm9EAZ0g/edit?usp=sharing
UID:146268-21898811@events.umich.edu
URL:https://events.umich.edu/event/146268
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Activism,Biking,Climate Change,Community Service,Cycling,Education,Environment,Free,Graduate and Professional Students,planet blue,Social Impact,Student Org,Sustainability,Undergraduate Students
LOCATION:Duderstadt Center - Fabrication Underground  (B430-Lower Level)
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260410T141210
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T160000
SUMMARY:Workshop / Seminar:de Rham stacks
DESCRIPTION:In this talk\, we will reconstruct de Rham cohomology by introducing a so-called de Rham space over the stack ([ \mathbb{A}^1 / \mathbb{G}_m ])\, whose cohomology encodes the Hodge filtration. Its restriction to the closed point (B\mathbb{G}_m) recovers the Hodge decomposition\, while its restriction to the open substack (\mathbb{G}_m / \mathbb{G}_m) recovers the full de Rham cohomology.
UID:147634-21901413@events.umich.edu
URL:https://events.umich.edu/event/147634
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2866
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260331T114354
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T160000
SUMMARY:Lecture / Discussion:HET Seminar | Continuing past the inner horizon using WKB
DESCRIPTION:Features of the black hole interior can be extracted from the analytic structure of boundary correlation functions. Working in the geodesic approximation\, we find analytic continuations that probe the interior of rotating and charged black holes. These generate contributions from timelike geodesics that thread the interior and emerge in a future universe. We implement these continuations on the momentum space two-point function and exemplify this in several black hole backgrounds. We also identify position space analytic continuations achieving the same task that incorporate different continued momentum space correlators. These correspond to non-perturbative corrections to the WKB approximation. We demonstrate this explicitly in the rotating BTZ black hole by showing that the interior geodesics contribute to the continued position space correlator and motivate a picture for how these contributions arise in higher dimensions. For AdS Schwarzschild\, we identify the analytically continued solution that captures the bouncing geodesic. We discuss the possibility of using these continuations to probe the instability of inner horizons from the boundary.
UID:145576-21897544@events.umich.edu
URL:https://events.umich.edu/event/145576
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:High Energy Theory Seminar,Physics,Science,Seminar,Talk
LOCATION:West Hall - 340
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260518T092015
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T154500
SUMMARY:Exhibition:Sky Tonight
DESCRIPTION:A live presentation on what to find in the sky tonight and for the coming few weeks. This presentation includes how to find the cardinal directions with the North Star\, current and upcoming constellations\, visible planets\, a few deep sky objects depending on the season\, and other interesting astronomical visualizations. If you want to be able to look up from your own backyard and know what to look for\, this is the show for you.
UID:141325-21899015@events.umich.edu
URL:https://events.umich.edu/event/141325
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Astronomy,Children,Family,Film,Museum,museums,natural history museum,Natural Sciences,Planetarium,Prospective Undergraduate Students,Science,Space,Undergraduate
LOCATION:Museum of Natural History
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260105T110419
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T160000
SUMMARY:Social / Informal Gathering:Sustainability Coffee Chats: Free coffee and good conversation!
DESCRIPTION:The Student Sustainability Coalition will be hosting our coffee chats throughout the semester and we want you to join us!  Passionate about sustainability?--water conservation\, AI\, carbon neutrality\, transportation\, ANYTHING!--come chat with us\, share your passion(s) and interests\, all while helping contribute to a more sustainable University of Michigan! Not to mention: WE WILL BUY YOUR DRINK!\n\nFind us at: \nMaizes Cafe every Friday from 3-4p and Rooting for Change Cafe (3rd Floor Palmer Commons) every other Wednesday from 5-6p
UID:138091-21891115@events.umich.edu
URL:https://events.umich.edu/event/138091
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Activism,Climate Change,Discussion,Food,food and the environment,Free,Free Food,Graduate and Professional Students,In Person,Social,Social Impact,Student Org,Sustainability,Talk,Undergraduate Students
LOCATION:Michigan League - Maizie's Cafe
CONTACT:
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