BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Drupal iCal API//EN X-WR-CALNAME:Events items teaser X-WR-TIMEZONE:America/Toronto BEGIN:VTIMEZONE TZID:America/Toronto X-LIC-LOCATION:America/Toronto BEGIN:DAYLIGHT TZNAME:EDT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 DTSTART:20250309T070000 END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:20241103T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:6870ebaea8735 DTSTART;TZID=America/Toronto:20250605T130000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20250605T143000 URL:/combinatorics-and-optimization/events/co-reading-g roup-arkaprava-choudhury SUMMARY:C&O Reading Group -Arkaprava Choudhury CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: Refuting semirandom CSPs via spectral graph theory techniques\n\nSPEAKER:\n Arkaprava Choudhury\n\nAFFILIATION:\n Uni versity of À¶Ý®ÊÓÆµ\n\nLOCATION:\n MC 6029\n\nABSTRACT:\n\n: In this talk\ , we will consider recent spectral techniques\, developed\nby [HKM23] and [GKM22]\, for combinatorial and algorithmic problems. We\nshall focus\, in particular\, on designing algorithms for refuting\nsemirandom instances o f constraint satisfaction problems. The main\ncomponent of the talk is a r eduction to studying spectral properties\nof so-called \"Kikuchi graphs\" corresponding to a system of homogeneous\ndegree-q multilinear polynomials .\n\nNo prerequisites in spectral graph theory beyond basic linear algebra \nare assumed.\n\n[HKM23]: A simple and sharper proof of the hypergraph M oore bound\n\n[GKM22]: Algorithms and Certificates for Boolean CSP Refutat ion:\n\"Smoothed is no harder than Random\"\n DTSTAMP:20250711T104710Z END:VEVENT END:VCALENDAR