SAYAS NUMERICS DAY 5/03/2025 (formerly Delmar Numerics Day) - Annual Workshop on Computational Mathematics

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

University of Maryland, College Park
University of Maryland, Baltimore County
George Mason University
University of Delaware

The purpose of Sayas Numerics Day is

to connect researchers of computational mathematics in VA, MD, DC, DE and adjacent areas
to provide opportunities to students, postdocs and other early career researchers

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.

SAYAS NUMERICS DAY 2025 will take place as an IN-PERSON ONLY MEETING

on Saturday, May 3, 2025, 9:30am-5:50pm
Location: University of Delaware, 115 Purnell Hall (campus map)
Keynote talk: Ilse Ipsen (NC State), An Introduction to Randomized Matrix Computations
We particularly encourage graduate students and early career researchers to attend.

REGISTRATION REGISTER NOW!

REGISTRATION FORM

Registration is required (it is free)
The deadline for submitting a talk was March 28, 2025.

HOW TO GET THERE

Parking: Parking garages 14C or 17C, see parking map (meeting is in "Purnell").
It is "Pay by Plate", all day parking is $12.
- make a note of your license plate number (all letters and numbers) when you leave your vehicle
- for payment: go to "Pay to Park Kiosk" of the garage, enter your license plate number and pay with credit card.
If you come from the South: from I-95 you get to South Main St which takes you to parking garage 14C.
If you come from the North: you will arrive on Main St (Rt 273) which takes you to parking garage 17C.
by train: Take Amtrak to Wilmington and then an Uber.
(There is an Amtrak stop close to campus, but only two trains per day stop there.)

ACCOMMODATION

the campus hotel is Courtyard by Marriott
hotels close by and on the route of campus shuttle are Spring Hill Suites by Marriott Newark, Embassy Suites
more hotel information
there will be several events on campus that weekend so we recommend to book early.

SCHEDULE

Abstracts of all contributed talks

9:00 BREAKFAST (will be provided)

9:30 Lucas Bouck (Carnegie Mellon University):
Discontinuous Galerkin Method for Advection Diffusion with Nonsmooth Velocity

9:50 Sarswati Shah (George Mason University):
Weakly compressible two-layer shallow-water flows with friction along channels

10:10 Mansur Shakipov (University of Maryland, College Park):
Inf-Sup Stability of Evolving Surface Parametric FEM

10:30 BREAK

11:00 Keegan Kirk (George Mason University):
How to Insulate Optimally

11:20 Xuenan Li (Columbia University):
A Constrained Optimization Approach for Constructing Rigid Bar Frameworks with Higher-order Rigidity

11:40 Rohit Khandelwal (George Mason University):
Variational Problems with Gradient Constraints: A priori and A posteriori error identities

12:00 Gonzalo Benavides (University of Maryland, College Park):
Liquid Crystal Networks bending energy and its approximation via a Local Discontinuous Galerkin method

12:20 LUNCH (will be provided)

1:30 Ilse Ipsen (NC State): KEYNOTE SPEAKER
An Introduction to Randomized Matrix Computations

2:30 BREAK

3:00 Talhah Ansari (Technical University of Munich):
Adjoint-Based Material Parameters and Constitutive Model Identification From Deformation Measurements

3:20 Pierre Amenoagbadji (Columbia University):
Time-harmonic wave propagation in junctions of two periodic half-spaces

3:40 Tongtong Li (University of Maryland, Baltimore County):
A structurally informed data assimilation approach for discontinuous state variables

4:00 Mohammadhossein Mohammadisiahroudi (Lehigh University):
Quantum Computing-based Sensitivity Analysis for PDE-constrained Optimization

4:20 BREAK

4:50 William Sands (University of Delaware):
Adaptive-Rank Methods for Multi-Scale BGK Equations via Greedy Sampling

5:10 Nanyi Zheng (University of Delaware):
Sampling-Based Adaptive Rank Integrators for Multi-scale Kinetic Models

5:30 Sanghoon Na (University of Maryland, College Park):
Curse of Dimensionality in Neural Network Optimization

5:50 END

9:00	BREAKFAST (will be provided)
9:30	Lucas Bouck (Carnegie Mellon University): Discontinuous Galerkin Method for Advection Diffusion with Nonsmooth Velocity
9:50	Sarswati Shah (George Mason University): Weakly compressible two-layer shallow-water flows with friction along channels
10:10	Mansur Shakipov (University of Maryland, College Park): Inf-Sup Stability of Evolving Surface Parametric FEM
10:30	BREAK
11:00	Keegan Kirk (George Mason University): How to Insulate Optimally
11:20	Xuenan Li (Columbia University): A Constrained Optimization Approach for Constructing Rigid Bar Frameworks with Higher-order Rigidity
11:40	Rohit Khandelwal (George Mason University): Variational Problems with Gradient Constraints: A priori and A posteriori error identities
12:00	Gonzalo Benavides (University of Maryland, College Park): Liquid Crystal Networks bending energy and its approximation via a Local Discontinuous Galerkin method
12:20	LUNCH (will be provided)
1:30	Ilse Ipsen (NC State): KEYNOTE SPEAKER An Introduction to Randomized Matrix Computations
2:30	BREAK
3:00	Talhah Ansari (Technical University of Munich): Adjoint-Based Material Parameters and Constitutive Model Identification From Deformation Measurements
3:20	Pierre Amenoagbadji (Columbia University): Time-harmonic wave propagation in junctions of two periodic half-spaces
3:40	Tongtong Li (University of Maryland, Baltimore County): A structurally informed data assimilation approach for discontinuous state variables
4:00	Mohammadhossein Mohammadisiahroudi (Lehigh University): Quantum Computing-based Sensitivity Analysis for PDE-constrained Optimization
4:20	BREAK
4:50	William Sands (University of Delaware): Adaptive-Rank Methods for Multi-Scale BGK Equations via Greedy Sampling
5:10	Nanyi Zheng (University of Delaware): Sampling-Based Adaptive Rank Integrators for Multi-scale Kinetic Models
5:30	Sanghoon Na (University of Maryland, College Park): Curse of Dimensionality in Neural Network Optimization
5:50	END

PREVIOUS MEETINGS

Sayas Numerics Day 2024 at George Mason University, Arlington Campus
Sayas Numerics Day 2022 at University of Maryland, Baltimore County
Sayas Numerics Days 2020 and 2021 were cancelled because of Covid-19.
As a replacement we started SAYAS NUMERICS SEMINAR, an online seminar (video recordings of most talks 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

SCIENTIFIC COMMITTEE

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)

Department of Mathematics University of Maryland, College Park	Department of Mathematical Sciences University of Delaware
Department of Mathematics and Statistics University of Maryland, Baltimore County	Department of Mathematical Sciences George Mason University

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)