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DESCRIPTION:Mathematics Ph.D. candidate Kevin Pomorski defends his disserta
tion on "On Braided Monoidal 2-Categories" on March 3 at 5 p.m. via Teams.\
n\n \n\nJoin on Teams. \n\nThe dissertation committee is Alexei Davydov\, M
arcel Bischoff\, Sergio Lopez-Permouth\, and Nancy Sandler.\n\n\n\nAbstract
: In Topological Field Theories (TFTs)\, there is a well documented correla
tion between 3-dimensional TFTs and braided monoidal categories. While brai
ded monoidal 2-categories have been expected to have applications to 4-dime
nsional TFTs\, there are very few known examples of braided monoidal 2-cate
gories. The major goal of this dissertation is to present a categorificatio
n of a result of Pareigis. Namely\, that modules over a commutative algebra
in a braided monoidal category form a braided monoidal category. The categ
orified statement is that pseudomodules over a braided pseudomonoid in a br
aided monoidal 2-category form a braided monoidal 2-category. This result w
ould be an example of constructing braided monoidal 2-categories from exist
ing braided monoidal 2-categories. We approach this by constructing a new l
anguage which simplifies some of the complexities coming from relative tens
or products of pseudomodules. The relationships between monoidal categories
and multicategories has been well documented e.g. by Leinster. We define t
he notion of a multi-2-category\, as well as the notion of a braided multi-
2-category. We then construct braided pseudomonoids in braided multi-2-cate
gories and examine pseudomodules over them. The main theorem of the dissert
ation is that local pseudomodules over a braided pseudomonoid in a braided
multi-2-category forms a braided multi-2-category. A second result is a rev
ision to the Joyal-Street definition of a balanced 2-category. We give a co
herence for balanced 2-categories which was omitted in the original definit
ion.
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SUMMARY:Mathematics Ph.D. candidate Kevin Pomorski defends his dissertation
\, March 3
UID:tag:localist.com\,2008:EventInstance_39297321114861
URL:https://calendar.ohio.edu/event/mathematics_phd_candidate_kevin_pomorsk
i_defends_his_dissertation_march_3
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