Scott W. Hansen

Vita

• 1983 B.S Mathematics and Comp. Sci.; Southwest Missouri State
• 1988 (December) Ph.D., University of Wisconsin-Madison
• 1989-90 Postdoc at Virginia Tech, Blacksburg, VA
• 1990-92 Visiting Assistant Prof, Iowa State Univ.
• 1992 - 93 Research Postdoc at Institute for Mathematics and its Applications, Univ. of Minnesota, Minneapolis, MN
• 1993 - 97 Assistant Professor, Iowa State University
• 1997 - present Associate Professor, Iowa State University

Research Interests

My main research area is control theory of partial differential equations. Other areas I work with include Mathematical Modeling, Material Science, Applied Functional Analysis, Nonharmonic Fourier Series

Research Publications

Papers on Exact Controllability

• Distributed controllability of a cochlea model
  (with Issac Chepkwony) Proc. MTNS (2008)
  
• Exact controllability of a beam in an inviscid fluid
  (with Andre Lyashenko), Discrete and Continuous Dynamical Systems , vol. 3 (1997), p. 59 -78
  
• Exact controllability of an elastic membrane coupled with a potential fluid
  Int. J. Appl. Math and Comp. Sci., Vol. 11 (2001) 1231-(1248)
  
• Exact controllability of thermoelastic beams
  (with B.-Y. Zhang) JMAA, vol. 210 (1997) p. 182-202
  (For Proceedings of ECC version see Exact controllability of thermoelastic systems
  

Papers on Layered Beams and Plates

• Simultaneous boundary control of a Rao-Nakra sandwich beam
  (with R. Rajaram):2005 CDC Proceedings
  
• Riesz basis property and related results for a Rao-Nakra sandwich beam
  (with R. Rajaram) Discrete and Continuous Dynamical Systems Supplement Vol., p.365--375
  
• Null-Controllability of a damped Mead-Markus sandwich beam
  (with R. Rajaram) Discrete and Continuous Dynamical Systems Suppl. Vol.pp. 746--755
  
• Exact boundary controllability of a Rao-Nakra sandwich beam
  (with R. Rajaram) Proc. SPIE , vol. 5757 (2005), p.97-107.
  
• Semigroup well-posedness of a multilayer Mead-Markus plate with shear damping
  Chapter XIX: Control and Boundary Analysis ,Marcell Dekker 2004
  
• Several related models for multilayer sandwich plates
  Mathematical Models and Methods in Applied Sciences, vol. 14 (2004), p. 1103-1131.
  
• Optimal damping in multilayer Mead-Markus sandwich beams
  Proc. SPIE , vol. 5049 (2003), 201--211.
  
• Analyticity, hyperbolicity and uniform stability of semigroups arising in models of composite beams
  (with Irena Lasiecka) Mathematical Models and Methods in Applied Sciences, vol. 10 (2000), p. 555-580.
  
• Modeling and analysis of damped three-layer beams
  (with Richard Fabiano) Discrete and Continuous Dynamical Systems, Proc. Third Int. Conf. on Dynamical Systems and Diff. Equations (May 18-21, 2000) (2001) p. 143-155
  
• A dynamical model for multilayered plates with independent shear deformations
  Quarterly of Applied Mathematics, vol. LV (1997), p. 601-621.
  
• Analyticity of semigroups associated with a laminated composite beam,
  (with Z. Liu) in Control of Distributed Parameter and Stochastic Systems (eds. S. Chen, X. Li, J. Yong, X.Y. Zhou) Kluwer Academic 1999.
  
• Analysis of a plate with a localized piezoelectric patch,
  Proc. 1998 Conference on Decision and Contol (1999)
  
• Structural damping in laminated beams due to interfacial slip,
  (with Ruben Spies) Journal of Sound and Vibration Vol. 204 (1997) p. 183-202.
  
• Modeling and analysis of multilayered plates,
  ESAIM Proc. Vol. 4 (1998) p. 117-135
  

Papers on Admissibility/Optimal Regularity

• New results on the operator Carleson measure criterion,
  (with George Weiss) J. Mathematical Control and Information vol. 14, (1997), p. 3-32. (Figures missing- see journal article)
  
• Optimal regularity results for boundary control of elastic systems with fractional order damping,
  ESAIM Proc. vol. 8, (2000), p. 53-64.