About deltaBEM

The package deltaBEM is a collection of open source MATLAB files requiring no compilation. A front end is not provided. The user is expected to peruse the documented examples provided and modify them to write scripts that meet their needs. Potential users are welcome to download and use the code freely. We just request that any results obtained with the aid of deltaBEM acknowledge its use and cite the relevant papers. At present we only offer the functions needed for steady state and time-harmonic problems. However, the time-harmonic case has been programmed in a way that makes it easy to connect with Convolution Quadrature (CQ) routines for time domain simulations. Low order CQ routines will be added shortly to this site.

About Us

The deltaBEM suite has developed over the years thanks to the joint efforts of a number of people -ranging from faculty to undergraduate students- that have contributed with theoretical developments, computational implementation and lots of field/crash-testing. Here are the main contributors.

francisco-javier sayas

victor dominguez

tianyu qiu

Francisco-Javier Sayas University of Delaware Coordinator

Victor Domínguez
Universidad Pública de Navarra (Spain)




Tianyu Qiu
Graduate Student,
University of Delaware








tonatiuh sanchez-vizuet

matthew hassell








Tonatiuh Sánchez-Vizuet
Graduate Student,
University of Delaware



Matthew Hassell
Graduate Student,
University of Delaware
























Former team members

sijang lu

Sijiang Lu
PhD U.D. in 2013(Contributed 2011-2013)










Early ideas leading to the current configuration of deltaBEM appear in papers in collaboration with María-Luisa Rapún. Further development was done during summer research internships with freshmen graduate students Michael DePersio (2012, University of Delaware) and Douglas Freeman (2013, University of Delaware). Andrea Carosso, then a senior udergraduate student at the University of Delaware (currently a graduate student at UC-Boulder), participated during a summer program and an independent study course throughout the 2013 academic year.

The research leading to the deltaBEM suite has been partially funded by the National Science Foundation through the grant NSF-DMS 1216356. Numerical simulation and analysis of transient waves in unbounded domains.