Fri, April 30, 2021
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7:00pm [7:30pm] David Eisenbud, MSRI and University of California, Berkeley, CA, USA
Description:
Speaker:* David Eisenbud, MSRI and University of California, Berkeley, CA, USA* Date/Time: *30 April 2021, 7:30pm IST/ 2:00pm GMT / 10:00am EDT* (joining time 7:15pm IST). *(Please note the unusual time)* Google meet link: https://meet.google.com/qei-hcip-jng Title:* Layered resolutions and Cohen-Macaulay approximation* Abstract: The representation theory of finite-dimensional algebras has an important generalization to the study of maximal Cohen-Macaulay modules (MCMs) over local Cohen-Macaulay rings. In the case of a hypersurface ring, this is the study of the matrix factorizations of the equation of the hypersurface, and these come from minimal free resolutions of the MCMs. I will talk about the "next" case---MCMs and their minimal free resolutions over complete intersections. This is joint work with Irena Peeva. For more information and links to previous seminars, visit the website of VCAS: https://sites.google.com/view/virtual-comm-algebra-seminar