This is an annual meeting on research in computational mathematics in Maryland, DC, Delaware, Virginia and vicinity organized by

The purpose of Sayas Numerics Day is

Sayas Numerics Day is named in honor of Francisco Javier Sayas (1968-2019). In addition to his many other achievements, he played a key role in establishing and running DelMar Numerics Day, and was dedicated to its mission of giving especially younger mathematicians an opportunity to share their work.

Presentation honoring Francisco Javier Sayas, given by R. Nochetto at DelMar Numerics Day 2019.



The PARKING MAP shows that ample parking is available a very short distance from the ITE building (at G4 on the map) in zones marked A (red) and D (purple-ish). People can also park in the Commons Garage (E), or the visitor parking on top of the Commons Garage (where normally visitors pay). Parking is free on Saturday!


We have reserved rooms at a rate of $125. This offer may no longer be available after September 2.
You should use the link below to make the reservation.


Abstracts of all contributed talks

 9:00 BREAKFAST (will be provided)
 9:30 Randy Price (George Mason University):
NINNs: Nudging Induced Neural Networks
 9:50 Abhishek Balakrishna (University of Maryland, Baltimore County):
Data Assimilation and Determining Functionals for Three-Dimensional Fluids
10:10 Lu Zhang (Columbia University):
Data-Driven Joint Inversions for PDE Models
10:30 BREAK
11:00 Lucas Bouck (University of Maryland, College Park):
Finite Element Approximation of a Membrane Model for Liquid Crystal Polymeric Networks
11:20 Yukun Yue (Carnegie Mellon University):
Convergence Analysis For A Semi-discrete Energy Stable Scheme For Hydrodynamic Q-tensor Model
11:40 Farjana Siddiqua (University of Pittsburgh):
A second-order symplectic method for an advection-diffusion-reaction problem in Bioseparation
12:00 Madhu Gupta (George Mason University):
Sparsity-based nonlinear reconstruction of optical parameters in two-photon photoacoustic computed tomography
12:20 LUNCH (will be provided)
 1:30 Karen Willcox (University of Texas at Austin):             KEYNOTE SPEAKER
Beyond forward simulations: From reduced-order models to digital twins with computational science
 2:30 BREAK
 3:00 Daniel Hayes (University of Delaware):
Saddle Point Least Squares for Convection-Reaction-Diffusion
 3:20 Zhaopeng Hao (Purdue University):
Pseudo-spectral methods for the integral fractional Laplacian
 3:40 Fruzsina Agocs (Center for Computational Mathematics, Flatiron Institute):
A fast and accurate solver for highly oscillatory ODEs
 4:00 Joseph Nakao (University of Delaware):
A structure preserving, conservative, low-rank tensor scheme for solving the 1D2V Vlasov-Fokker-Planck equation
 4:20 BREAK
 4:50 Amir Sagiv (Columbia University):
Density Estimation in Uncertainty Propagation - Approximating Pushforward Measures
 5:10 Jiaxing Liang (University of Maryland, College Park):
Surrogate approximation of the Grad-Shafranov free boundary problem via stochastic collocation on sparse grids
 5:30 Mingkai Yu (University of Maryland, Baltimore County):
State and parameter estimation from partial state observations in stochastic reaction networks
 5:50 END


SAYAS Numerics Days 2020 and 2021 were cancelled because of Covid-19.
As a replacement we started SAYAS NUMERICS SEMINAR, an online seminar. Note that video recordings of most talks are available.
Delmar Numerics Day 2019 at University of Maryland, College Park
Delmar Numerics Day 2018 at University of Delaware
Delmar Numerics Day 2016 at George Mason University (Fairfax, VA).
Delmar Numerics Day 2015 at U.S. Naval Academy (Annapolis)
Delmar Numerics Day 2014 at University of Maryland, Baltimore County
Delmar Numerics Day 2013 at University of Maryland, College Park
Delmar Numerics Day 2012 at University of Delaware


Harbir Antil (George Mason University)
Andrei Draganescu (U of Maryland, Baltimore County)
Ricardo H. Nochetto (U of Maryland, College Park)
Petr Plechac (U of Delaware)
Tobias von Petersdorff (U of Maryland, College Park)