Professor

Department of Mathematical Sciences
University of Delaware
505 Ewing Hall
Newark, DE 19716
E-mail: fjsayas (at) udel.edu

Education and employment

  • 1991. BS in Applied Mathematics, Universidad de Zaragoza, Spain
  • 1994. PhD in Applied Mathematics, Universidad de Zaragoza, Spain, under the supervision of Michel Crouzeix, Universite de Rennes, France
  • 1994-97. Instructor (profesor asociado), Department of Applied Mathematics, Universidad de Zaragoza, Spain.
  • 1997-2010. Associate professor (profesor titular), Department of Applied Mathematics, Universidad de Zaragoza, Spain. (On academic leave 2008-2010)
  • 2007-2010. Visiting Associate Professor, School of Mathematics, University of Minnesota
  • 2010-2013. Associate Professor, Department of Mathematical Sciences, University of Delaware
  • Since 2013. Full Professor, Department of Mathematical Sciences, University of Delaware
  • From August 2014 to August 2017. Director of Graduate Studies, Department of Mathematical Sciences, University of Delaware 

Milestones

  • Fall 2016. Joined the editorial board of Applicable Analysis, published by Taylor & Francis
  • Spring 2016. The monograph Retarded Potentials and Time Domain Integral Equations, a road map, has been published by Springer Verlag as Volume 50 of their series in Computational Mathematics
  • Spring 2016. Joined the editorial board of SEMA Journal, published by Springer
  • Summer 2015. SEMA Award to best paper. For Variational views of Stokeslets and Stresslets, written in collaboration with Virginia Selgas.
  • 2013. SIAM Review republished the paper The validity of Johnson-Nedelec's BEM-FEM coupling on polygonal interfaces in their SIGEST section.
  • Spring 2013. Joined the editorial board of the Journal of Integral Equations and Applications, published by the Rocky Mountain Mathematics Consortium.
  • Summer 2001. Spanish Society of Applied Mathematics (SEMA) Best Young Researcher Award.

PhD students (math genealogy link)

  • 1997. Ricardo Celorrio. (Coadvised with Francisco Lisbona. Associate professor at the University of Zaragoza.)
  • 2001. Victor Dominguez. (Associate professor at the Public University of Navarra.)
  • 2004. Maria Luisa Rapun. (Associate professor at the Polytechnic University of Madrid.)
  • 2010. Ricardo Oyarzua. (Coadvised with Gabriel Gatica. Associate professor at the Universidad del Bio-Bio.)
  • 2011. Antonio Laliena. (Instructor at the University of Zaragoza.)
  • 2013. Sijiang Lu. (Working in finance in Shanghai.)
  • 2013. Zhixing Fu. (Working in finance in Shanghai.)
  • 2016. Tianyu Qiu. (Postdoc at Rice University.)
  • 2016. Matthew Hassell. (Working in industry in Pennsylvania.)
  • 2016. Tonatiuh Sanchez-Vizuet. (Postdoc at New York University.)
  • Allan Hungria (in progress)
  • Thomas Brown (in progress)
  • Shukai Du (in progress)
  • Hasan Eruslu (in progress)
In Spain

With Antonio, Maria Luisa, and Victor.

Recent activity

  • I'm on sabbatical during the 2017-18 academic year. I'll be visiting the Graz University of Technology in October 2017, for the whole month.