Fall 2024 Analysis Seminar: Difference between revisions

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|Lars Niedorf
|Lars Niedorf
|UW Madison  
|UW Madison  
|Spectral multipliers on two step structures
|Restriction type estimates and spectral multipliers on Métivier groups
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Link to Abstract: [https://people.math.wisc.edu/~seeger/gevorg-Abstract.pdf]
Link to Abstract: [https://people.math.wisc.edu/~seeger/gevorg-Abstract.pdf]
===[[Lars Niedorf]]===
Title: Restriction type estimates and spectral multipliers on Métivier groups
Abstract: We present a restriction type estimate for sub-Laplacians on arbitrary two-step stratified Lie groups. Although weaker than previously known estimates for the subclass of Heisenberg type groups, these estimates turn out to be sufficient to prove an Lp-spectral multiplier theorem with sharp regularity condition s > d|1/p-1/2| for sub-Laplacians on Métivier groups.

Revision as of 23:35, 27 August 2024

Organizers: Shengwen Gan, Terry Harris and Andreas Seeger

Emails:

  • Shengwen Gan: sgan7 at math dot wisc dot edu
  • Terry Harris: tlharris4 at math dot wisc dot edu
  • Andreas Seeger: seeger at math dot wisc dot edu

Time and Room: Wed 3:30--4:30 Van Vleck B119.

In some cases the seminar may be scheduled at different time to accommodate speakers.

If you would like to subscribe to the Analysis seminar list, send a blank email to analysis+subscribe (at) g-groups (dot) wisc (dot) edu

Links to previous seminars

Link to Spring 2025 Analysis Seminar


Date Speaker Institution Title Host(s) Notes (e.g. unusual room/day/time)
We, 9-11 Gevorg Mnatsakanyan UW Madison Almost everywhere convergence of the Malmquist Takenaka series
We, 9-18 Lars Niedorf UW Madison Restriction type estimates and spectral multipliers on Métivier groups
Th, 9-26, 2:25-3:25, VV B139 Niclas Technau Max Planck Institute (Bonn) Andreas Note changes of time/date/room, joint with Number Theory Seminar
We, 10-2
We, 10-9
We, 10-16
We, 10-23
We, 10-30 Burak Hatinoglu Michigan State University Alexei
We, 11-6 Bingyuan Liu University of Texas Rio Grande Valley Xianghong
We, 11-13 Maxim Yattselev Indiana University (Indianapolis) Sergey
We, 11-20 Li Ji Macquarie University Brian
We, 11-27 No seminar
We, 12-4
We, 12-11


Abstracts

Gevorg Mnatsakanyan

Title:

Abstract


Link to Abstract: [1]

Lars Niedorf

Title: Restriction type estimates and spectral multipliers on Métivier groups

Abstract: We present a restriction type estimate for sub-Laplacians on arbitrary two-step stratified Lie groups. Although weaker than previously known estimates for the subclass of Heisenberg type groups, these estimates turn out to be sufficient to prove an Lp-spectral multiplier theorem with sharp regularity condition s > d|1/p-1/2| for sub-Laplacians on Métivier groups.