Dynamical Systems Seminars

Spring 2025

The Dynamical Systems seminar is held on Monday afternoons at 4:00 PM in CCDS 548 . There will be a brief tea in CCDS 548 at 3:45PM.

• January 27th Björn de Rijk (KIT)
  Title: Orbital stability of spatially periodic waves in the Klein-Gordon equation against localized perturbations Abstract: Nonlinear stability for spatially periodic waves in dispersive systems has so far been obtained against co-periodic or subharmonic perturbations by leveraging the Hamiltonian structure or other conserved quantities. However, nonlinear stability against localized perturbations remains largely unexplored. Since the perturbed wave is neither periodic nor localized in this case, the usual conservation laws are unavailable, thus obstructing a standard nonlinear stability argument. In this talk, I present a nonlinear orbital stability result for spatially periodic waves in the Klein-Gordon equation against $L^2$-localized perturbations. This is joint work with Emile Bukieda and Louis Garénaux.
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• February 3rd Mara Freilich (Brown)
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• February 10th TBD (TBD)
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• February 17th No Seminar - President's Day (TBD)
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• February 24th Michelle Bartolo (Harvard)
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• March 3rd Rebecca Winarski (College of the Holy Cross)
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• March 10th No Seminar - Spring Break (TBD)
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• March 17th TBD (TBD)
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• March 24th TBD (TBD)
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• March 31st TBD (TBD)
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• April 7th TBD (TBD)
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• April 14th TBD (TBD)
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• April 14th TBD (TBD)
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• April 28thth TBD (TBD)
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  Directions to BU Math Dept.

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  Speakers from previous years

  

  BU Dynamical Systems Home Page
  

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  BU Mathematics Department Home Page