[Binghamton Geometry Topology Seminar] GT Seminar: Thomas Brazelton speaks on Thursday

[Cary Malkiewich]

Hi all,

One more thing, we're going to dinner with the speaker around 6:30pm, let
me know if you'd like to join (text me at 7742395319) and I'll send you the
info on where we're going.

Best,
Cary

On Thu, Nov 3, 2022 at 8:27 AM Cary Malkiewich <
malkiewich at math.binghamton.edu> wrote:

> Hi everyone,
>
> A quick reminder that Thomas Brazelton's talk is today, and the colloquium
> is after that!
>
> Both the speaker and I will not be able to come to lunch today, so there
> won't be an official lunch, but feel free to gather with other topologists
> at the usual time.
>
> See you at the talk!
>
> Cary
>
> On Mon, Oct 31, 2022 at 12:13 PM Cary Malkiewich <
> malkiewich at math.binghamton.edu> wrote:
>
>> Hi everyone,
>>
>> This week we are pleased to have Thomas Braelton (Penn) speaking about
>> enumerative geometry in the presence of a group action. This will be an *in
>> person talk*, on Thursday at 2:50pm in WH 100E.
>>
>> We will meet at noon outside WH100E to take the speaker to lunch. See you
>> there!
>>
>> Remember we will also have a colloquium by Avy Soffer, after Thomas's
>> talk (and cookies!) are over.
>>
>> Best,
>> Cary and Roman
>>
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%
>> Title: Equivariant enumerative geometry
>> Abstract: Classical enumerative geometry asks geometric questions of the
>> form "how many?" and expects an integral answer. For example, how many
>> circles can we draw tangent to a given three? How many lines lie on a cubic
>> surface? The fact that these answers are well-defined integers, independent
>> upon the initial parameters of the problem, is Schubert’s principle of
>> conservation of number. In this talk we will outline a program of
>> "equivariant enumerative geometry", which wields equivariant homotopy
>> theory to explore enumerative questions in the presence of symmetry. Our
>> main result is equivariant conservation of number, which states roughly
>> that the sum of regular representations of the orbits of solutions to an
>> equivariant enumerative problem are conserved.
>>
>
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