Please join us for the following up-coming Virtual Combinatorics
Colloquium. Individuals and viewing party groups from anywhere in the
world can "attend" these online talks and interact with the speaker and
other attendees remotely via Zoom.
*Zoom link: https://smcvt.zoom.us/j/831984515
<https://smcvt.zoom.us/j/831984515> *
*Date: *Tuesday, 7 April 2020
*Time*: 2:00 p.m. (14:00) Eastern Daylight Time
*Speaker: *Maria Chudnovsky, Princeton University
*Title:* RECENT PROGRESS ON THE ERDOS-HAJNAL CONJECTURE
*Abstract: *What is the effect of excluding an induced subgraph on the
global
structure of a graph? While there do not seem to be general structural
consequences,
a conjecture of Erdos and Hajnal states that graphs with forbidden induced
subgraphs behave very differently from general graphs; more precisely they
contain much larger cliques or stable sets. This conjecture is still open.
In this talk we will discuss the history of this problem and some recent
theorems related to it.
Click on the given link to join. Depending on your set-up, there may be a
very brief download, but we are using the Zoom platform, so it should be
pretty minimal. Past VCC events have gone very smoothly.
Here are quick instructions for joining a Zoom meeting:
https://support.zoom.us/hc/en-us/articles/201362193-How-Do-I-Join-A-Meeting-
The talk will start at the given time, but the invitation will be open 30
minutes so that anyone who wants to can call in early and get a sense of
how the platform works (how to mute/unmute, share screens, shared
whiteboard, raise hand, chat, etc.). It is very similar in feel to many
other like products, but takes a bit to figure out where Zoom puts the
buttons.
*To avoid the possibility of distraction and feedback noise, please keep
your mic muted unless you or someone in your group has something particular
to say.*
The *Northeast Combinatorics Network* (NCN) is funded by the US National
Science Foundation.
Activities, including *Discrete Math Days in the Northeast* (DMD), *Summer
Combo in Vermont*, and the *Virtual Combinatorics Colloquium* (VCC), are
detailed on the NCN website:
Google Sites: Northeast Combinatorics Network
<https://sites.google.com/view/northeastcombinatoricsnetwork/home>
Email: northeastcombinatoricsnetwork@gmail.com
YouTube Channel: Northeast Combinatorics Network
<https://www.youtube.com/channel/UCQYSxI_EL0nhE9E6aZZra5Q>
Some VCC tips:
For reporting purposes, we appreciate knowing who is attending and the
institution/location of the attendees. Please provide this information in
the chat feature of Zoom when you sign in.
We hope you will be hosting a viewing party
<https://sites.google.com/view/northeastcombinatoricsnetwork/events/virtual-combinatorics-colloquium/vcc-viewing-parties>
for this event. We'd like to list the viewing parties on the NCN website
<https://sites.google.com/view/northeastcombinatoricsnetwork/home>, and
knowing the existence and size of your party helps with reporting to the
organizations that fund these events. Please provide the number of
participants in your group in the chat feature when you sign in.
Single callers may find it helpful to use headphones if possible, as this
reduces feedback issues.
Viewing groups should keep microphones muted unless someone wants to raise
a hand and ask a question. If feedback occurs, turn off your volume to ask
the question, then turn it back on to hear the answer.
The default will be for the audience to be muted (again to reduce feedback
issues), but participants can unmute themselves, or use the 'raise hand'
button, if they have questions.
*Jo*
Jo Ellis-Monaghan
Chair, Department of Mathematics and Statistics (on sabbatical 2019-2020)
Editor-in-Chief, PRIMUS
Saint Michael's College
One Winooski Park
Colchester, VT 05439
office: Jeanmarie 279
website: http://academics.smcvt.edu/jellis-monaghan/
phone: 802 654 2660
fax: 802 654 2960
e-mail: je <jellis-monaghan@smcvt.edu>llismonaghan@gmail.com
<llismonaghan@gmail.com>
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