Seminars & Colloquia Calendar

Download as iCal file


Non-simply connected 4-manifolds

Daniel Ruberman (Brandeis)

Location:  Hill 705
Date & time: Friday, 28 September 2018 at 4:00PM - 5:00PM

Abstract:  A venerable technique to study manifolds of dimension n is to consider invariants of submanifolds of dimension n-1, dual to a 1-dimensional cohomology class. A classic instance of this technique in dimension 4 arises from Rochlin’s theorem about smooth spin 4-manifolds. I will describe what 4-dimensional gauge theory (Seiberg-Witten theory and Yang-Mills theory) tells us about such invariants, and give some applications of this new point of view.

Special Note to All Travelers

Directions: map and driving directions. If you need information on public transportation, you may want to check the New Jersey Transit page.

Unfortunately, cancellations do occur from time to time. Feel free to call our department: 848-445-6969 before embarking on your journey. Thank you.