Daniel Onofrei


Scott Assistant Professor  

Department of Mathematics                           Office: 328 JWB
155 South 1400 East                                        E-mail: onofrei@math.utah.edu
Office Phone: (801-585-5469)
University of Utah
Salt Lake City, UT 84112
USA                                                        

Resume (pdf)

Teaching:

Publications:

  • "Exterior cloaking with active sources in two dimensional acoustics", (pdf) (with Graeme Milton and Fernando Guevara Vasquez), invited to Wave Motion, 2010, online: arXiv:1009.2038
  • "Complete characterization and synthesis of the response function of elastodynamic networks", (pdf) (with Graeme Milton and Fernando Guevara Vasquez), accepted to Journal of Elasticity, 2010, online: arxiv:0911.1501
  • "Asymptotic analysis of boundary layer correctors and applications", (pdf)(with Bogdan Vernescu), submitted
  • "Broadband exterior cloaking", (pdf) (with Graeme Milton and Fernando Guevara Vasquez), Optics Express, Vol. 17, Issue 17 2009, 14800-14805
  • "Active exterior cloaking for the 2D Laplace and Helmholtz Equations",(pdf) (with Graeme Milton and Fernando Guevara Vasquez), Phys. Rev. Lett. 103,073901, 2009
  • "Cloaking via change of variables for Helmholtz equation in the case of fixed frequency",(pdf) (with R. Kohn, M. Vogelius and M. Weinstein), CPAM, vol. 63, Issue 8, 973 – 1016, 2010
  • " Mathematical analysis of waves propagation through a rectangular material structure in space - time ",(pdf) (with K. Lurie and S. Weekes) Jour. Math. Anal. Appl., 2009
  • "The Periodic Unfolding Method for perforated domains and Neumann sieve models",(pdf), (with D. Cioranescu, A. Damlamian and G.Griso) Jour. Math. Pures et Appl., 2008
  • "Error estimates for periodic homogenization with non-smooth coefficients", (pdf), (with B. Vernescu) Asymptotic Anal., 54 (2007), 103-123
  • "The Unfolding operator near a hyperplane and its application to the Neumann sieve model",(pdf) Adv. in Math. Sci. and Appl., vol 16, No. 1, 2006, pp. 239-258
  • "Gamma-convergence for a fault model with slip weakening friction law and periodic barriers",(pdf) (with B. Vernescu),Quarterly of Appl. Math., vol. LXII, 4, 747-778, 2005.
  • "Asymptotic analysis of a spectral problem associated with the Neumann sieve"(pdf) (with B. Vernescu),Journal of Anal. and Appl., vol. 1, 2005, pp. 69-87.
  • "G-convergence results for some spectral problems associated to the Neumann sieve and their applications" (with B. Vernescu),GAKUTO Int. Ser., Math. Sci. Appl., Vol. 24, 2005, pp. 249- 260.

    Works in preparation:

  • “The near cloak defeats the anti-cloak”, (with A. Thaler)
  • “Novel acoustic and electromagnetic field manipulations by using active devices. Analysis of minimal energy solutions and applications”,
  • “Mathematical analysis of the active exterior cloak for 2D quasistatic electromagnetics” (with F. Guevara-Vasquez, G.W. Milton)