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In this talk, I will discuss several projects with Thibaud van den Hove and Jakob Scholbach aimed at using geometry and motives to give a uniform categorification of Hecke algebras. Along the way, we will encounter the geometric Satake equivalence, Gaitsgory&#8217;s central functor, and Iwahori-Whittaker models.<\/span><\/p>","excerpt":"","slug":"antc-talk-robert-cass-cmc-2","image":false,"all_day":false,"start_date":"2026-03-10 12:30:00","start_date_details":{"year":"2026","month":"03","day":"10","hour":"12","minutes":"30","seconds":"00"},"end_date":"2026-03-10 13:10:00","end_date_details":{"year":"2026","month":"03","day":"10","hour":"13","minutes":"10","seconds":"00"},"utc_start_date":"2026-03-10 19:30:00","utc_start_date_details":{"year":"2026","month":"03","day":"10","hour":"19","minutes":"30","seconds":"00"},"utc_end_date":"2026-03-10 20:10:00","utc_end_date_details":{"year":"2026","month":"03","day":"10","hour":"20","minutes":"10","seconds":"00"},"timezone":"America\/Los_Angeles","timezone_abbr":"PDT","cost":"","cost_details":{"currency_symbol":"","currency_code":"","currency_position":"","values":[]},"website":"","show_map":true,"show_map_link":true,"hide_from_listings":false,"sticky":false,"featured":false,"categories":[{"name":"Algebra \/ Number Theory \/ Combinatorics Seminar","slug":"antc-seminar","term_group":0,"term_taxonomy_id":13,"taxonomy":"tribe_events_cat","description":"","parent":0,"count":170,"filter":"raw","term_order":"0","id":13,"urls":{"self":"https:\/\/colleges.claremont.edu\/ccms\/wp-json\/tribe\/events\/v1\/categories\/13","collection":"https:\/\/colleges.claremont.edu\/ccms\/wp-json\/tribe\/events\/v1\/categories"}}],"tags":[],"venue":{"id":3332,"author":"73","status":"publish","date":"2023-12-14 21:05:45","date_utc":"2023-12-15 05:05:45","modified":"2023-12-14 21:05:45","modified_utc":"2023-12-15 05:05:45","url":"https:\/\/colleges.claremont.edu\/ccms\/venue\/estella-2099\/","venue":"Estella 2099","slug":"estella-2099","json_ld":{"@type":"Place","name":"Estella 2099","description":"","url":"https:\/\/colleges.claremont.edu\/ccms\/venue\/estella-2099\/","address":{"@type":"PostalAddress"},"telephone":"","sameAs":""},"show_map":true,"show_map_link":true,"global_id":"colleges.claremont.edu\/ccms?id=3332","global_id_lineage":["colleges.claremont.edu\/ccms?id=3332"]},"organizer":[{"id":426,"author":"73","status":"publish","date":"2018-08-17 08:08:12","date_utc":"2018-08-17 15:08:12","modified":"2018-08-17 08:08:12","modified_utc":"2018-08-17 15:08:12","url":"https:\/\/colleges.claremont.edu\/ccms\/organizer\/lenny-fukshansky-4\/","organizer":"Lenny Fukshansky","slug":"lenny-fukshansky-4","json_ld":{"@type":"Person","name":"Lenny Fukshansky","description":"","url":"","telephone":"","email":"","sameAs":""},"global_id":"colleges.claremont.edu\/ccms?id=426","global_id_lineage":["colleges.claremont.edu\/ccms?id=426"]},{"id":433,"author":"73","status":"publish","date":"2018-08-08 15:52:55","date_utc":"2018-08-08 22:52:55","modified":"2018-08-08 15:52:55","modified_utc":"2018-08-08 22:52:55","url":"https:\/\/colleges.claremont.edu\/ccms\/organizer\/gizem-karaali-2\/","organizer":"Gizem Karaali","slug":"gizem-karaali-2","json_ld":{"@type":"Person","name":"Gizem Karaali","description":"","url":"","telephone":"","email":"","sameAs":""},"global_id":"colleges.claremont.edu\/ccms?id=433","global_id_lineage":["colleges.claremont.edu\/ccms?id=433"]}],"custom_fields":[],"json_ld":{"@context":"http:\/\/schema.org","@type":"Event","name":"Hecke algebras and motives (Robert Cass, CMC)","description":"&lt;p&gt;Hecke algebras play a central role in both number theory and representation theory. 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