BEGIN:VCALENDAR PRODID:-//Grails iCalendar plugin//NONSGML Grails iCalendar plugin//EN VERSION:2.0 CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT DTSTAMP:20260629T062512Z DTSTART;TZID=Australia/Melbourne:20240919T161500 DTEND;TZID=Australia/Melbourne:20240919T181500 SUMMARY:Connecting mathematical representation to physical interpretation UID:20260703T134353Z-iCalPlugin-Grails@philevents-web-bd7db559-gt5qm TZID:Australia/Melbourne LOCATION:Arts West 556\, Melbourne\, Australia DESCRIPTION:

When we use words and symbols to represent the world\, we understand that some features of those representations&mdash\; such as which font write in or the choice of metres vs. inches&mdash\;are merely arbitrary or conventional necessities of expression. But how can we tell which aspects of a representation are supposed to have real\, physical meaning? While we can often trust our intuitions\, many genuine scientific questions revolve around the subtleties of this boundary. In this talk\, I introduce concept of a &ldquo\;semantic \;diagram" as a way to scaffold narrative accounts of how mathematical gadgets represent target systems. Using category theory\, the mathematical theory of structure\, I demonstrate how semantic diagrams can help us speak more precisely about the core physical content of abstract mathematical descriptions. \;

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