Positivity, Finiteness, and Flatness
Interested in meeting your fellow graduate students and learning about their research? Join us at the informal colloquium for graduate HDR students to hear about interesting topics they’ve come across during their studies.
Date & time
Date/time
28 Aug 2026 3:00pm - 28 Aug 2026 4:00pm
Speaker
Speakers
Snehinh Sen (ANU)
Event series
Event series
Contact
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Description
Abstract: Semirings are, essentially, rings without subtraction. While their definition is fairly naive, their theory becomes much more complicated and richer in some ways than usual ring theory. They are also way more abundant in other fields of mathematics. This talk would be a brief overview of the basic concepts underlying the theory. Time permitting, he would present a few accessible fascinating results, both new and old, from the world of semirings.
A basic familiarity with classical rings and elementary category theory would be beneficial, though not necessary.
Location
Rm 1.33 Hanna Neumann Bldg #145
-35.275439579761, 149.11939069862