**
36C.
S. R. Lau, "Sparse spectral-element methods for the
helically reduced Einstein equations,"
Spectral and High Order Methods for Partial
Differential Equations ICOSAHOM 2018, to appear in
***Lecture Notes in Computational Science and Engineering*.

**
35.
J. A. Ellison, K. Heinemann, and
S. R. Lau, "Distributional analysis of
radiation boundary conditions for the
3+1 wave equation,"
*** Rocky Mountain J. Math.*
Volume 49, Number 1, 1-27 (2019).

**
34.
S. R. Lau,
"Stellar surface as low-rank modification in
iterative methods for binary neutron stars,"
*** J. Comput. Phys. * __348__, 460-481 (2017).

**
33C.
S. R. Lau and R. H. Price, "Helically Reduced
Wave Equations and Binary Neutron Stars,"
in Spectral and
High Order Methods for Partial Differential Equations
ICOSAHOM 2018.
***Lecture Notes in Computational Science and Engineering*
__119__, 369-382 (2017).

**
32.
D. A. Bizzozero, J. A. Ellison, K. Heinemann, and
S. R. Lau, "Rapid evaluation of two-dimensional retarded
time integrals," ***J. Comp. App. Math.* __324__,
118-141 (2017). This extended version has an extra
appendix.

**
31C. S. R. Lau and R. H. Price, "Sparse Modal Tau-Method
for Helical Binary Neutron Stars," in Spectral and
High Order Methods for Partial Differential Equations
ICOSAHOM 2014.
***Lecture Notes in Computational Science and Engineering*
__106__, 315-323 (2015).

**
30.
S. E. Field and S. R. Lau,
"Fast evaluation of far-field signals for time-domain
wave propagation,"
***J. Sci. Comput.* __64__, 647-669 (2015).

**
29.
M. Beroiz, T. Hagstrom, S. R. Lau, and R. H. Price,
"Multidomain, sparse, spectral-tau method for helically
symmetric flow," ***Computers & Fluids* __102__, 250-265 (2014).

**
28C.
D. A. Bizzozero, J. A. Ellison, K. Heinemann, and
S. R. Lau, "Paraxial approximation in CSR modeling
using the discontinuous Galerkin method," 6 page
contribution to proceedings for 35th International
Free-Electron Laser Conference, 26-30 August, 2013.
**

**
27.
A. G. Benedict, S. E. Field, and S. R. Lau,
"Fast evaluation of asymptotic waveforms from gravitational
perturbations," ***Class. Quantum Grav. *
__30__, 055015, 35 pages (2013).

**
****
26C.
K. Heinemann, G. Bassi, D. Bizzozero, J. A. Ellison, and
S. R. Lau, "Rapid integration over history in self-consistent
2D CSR modeling," 4 page contribution to proceedings of
ICAP2012, Rostock-Warnemünde,
Germany, August 2012.
**

**
25.
S. R. Lau and R. H. Price,
"Sparse spectral-tau method for the three-dimensional
helically reduced wave equation on two-center domains,"
*** J. Comput. Phys. * __231__, issue 22, 7695-7714 (2012).

**
****
24.
S. R. Lau, G. Lovelace, H. P. Pfeiffer,
"Implicit-explicit evolution of single black holes,"
***Phys. Rev. *__D84__, 084023, 16 pages (2011).

**
23. S. E. Field, J. S. Hesthaven, S. R. Lau,
and A. H. Mroue, "Discontinuous Galerkin method for the spherically reduced BSSN
system with second-order operators,"
***Phys. Rev. *__D82__, 104051, 19 pages (2010).

**
22. S. E. Field, J. S. Hesthaven, and S. R. Lau,
"Persistent junk solutions in time-domain modeling of extreme mass ratio binaries,"
***Phys. Rev. *__D81__, 124030, 14 pages (2010).

**
21.
S. R. Lau, "On Partial Spherical Means Formulas and Radiation Boundary
Conditions for the 3+1 Wave Equation,"
***Quart. Appl. Math. * __68__, 179-212 (2010).

**
20. S. E. Field, J. S. Hesthaven, and S. R. Lau,
"Discontinuous Galerkin method for computing gravitational waveforms
from extreme mass ratio binaries," ***
Class. Quantum Grav. * __26__, 165010, 28 pages (2009).

**
19. S. R. Lau, H. P. Pfeiffer, and J. S. Hesthaven,
"IMEX evolution of scalar fields on curved backgrounds,"
***Commun. Comput. Phys. * __6__, 1063-1094 (2009).

**
18. S. R. Lau and R. H. Price,
"Multidomain Spectral Method for the Helically Reduced Wave Equation,"
*** J. Comput. Phys. * __227__, issue 2, 1126-1161 (2007).

**
17.
T. Hagstrom and S. Lau,
"Radiation Boundary Conditions for Maxwell's Equations: A Review of Accurate
Time-Domain Formulations," ***J. Comp. Math.* __25__, 305-336 (2007).

**
16. S. R. Lau,
"Analytic structure of radiation boundary kernels for blackhole perturbations,"
***J. Math. Phys.* __46__, 102503, 21 pages (2005).

**
15.
S. R. Lau, "Rapid evaluation of radiation boundary kernels for time-domain
wave propagation
on blackholes: implementation and numerical tests," second half of
gr-qc/0401001,
***Class. Quantum Grav. *__21__, 4147-4192 (2004).

**
14.
S. R. Lau,
"Rapid evaluation of radiation boundary kernels for time-domain wave propagation
on blackholes: theory and numerical methods," first half of
gr-qc/0401001,
*** J. Comput. Phys. * __199__, issue 1, 376-422 (2004).

**
13. D. Baskaran,
S. R. Lau, and A. N. Petrov, "Center of mass integral in canonical general
relativity,'' ***Ann. Phys. *__307__, 90-131 (2003).

**
12.
S. R. Lau,
"Outer Boundary as Arrested History in General Relativity,'' ***Class.
Quantum Grav.* __19__, 2853-2882 (2002); Corrigendum, *Class.
Quantum Grav.* __20__, 1415 (2003).

**
11. J. D. Brown,
S. R. Lau, and J. W. York, "Action and Energy of the Gravitational
Field,'' ***Ann. Phys.* __297__ , 175-218 (2002).

**10. S. R. Lau,
"Lightcone reference for total gravitational energy,'' ***Phys. Rev. *__D60__
, 104034, 4 pages (1999).

**
9. J. D. Brown,
S. R. Lau, and J. W. York, "Canonical quasilocal energy and small spheres,''
***Phys. Rev.* __D59__ , 064028, 13 pages (1999).

**
8. S. R. Lau,
"Differential forms and wave equations for general relativity,''***Int.
J. Mod. Phys. D,* vol. 7, no. 6, 857-885 (1998).

**
7. W. Kummer
and S. R. Lau, "Boundary conditions and quasilocal energy in the canonical
formulation of all 1+1 models of gravity,'' ***Ann. Phys. *__258__,
37-80 (1997).

**
6. J. D. Brown,
S. R. Lau, and J. W. York, Jr., "Energy of isolated systems at retarded
times as the null limit of quasilocal energy,''
***Phys. Rev.* __D55__, 1977-1984 (1997).

**
5. S. R. Lau,
"On the canonical reduction of spherically symmetric gravity,'' ***Class.
Quantum Grav.* __13__ , 1541-1570 (1996).

**
4. S. R. Lau,
"New variables, the gravitational action, and boosted quasilocal stress-energy-momentum,''
***Class. Quantum Grav.* __13__ , 1509-1540 (1996).

**
3. S. R. Lau,
"Spinors and the reference point of quasilocal energy,'' ***Class. Quantum
Grav.* __12__ , 1063-1079 (1995).

**
2. S. R. Lau,
"Canonical variables and quasilocal energy in general relativity,'' ***Class.
Quantum Grav.* __10__ , 2379-2399 (1993).

**1. L. Dolan and S. Lau, "Selection rules in low energy string
effective Lagrangians,'' ***Nucl. Phys.* __B369__ , 229-323
(1992).

**Math Ph. D. Dissertation:**

**"Rapid Evaluation of Radiation Boundary Kernels for Time-Domain Wave
Propagation on Blackholes,'' 140 pages, UNC-Chapel Hill, December
2003 (under the direction of Michael L. Minion.).
**

**Physics Ph. D. Dissertation:**

**"Canonical Variables and Quasilocal Energy in General Relativity,''
315 pages, UNC-Chapel Hill, June 1994 (under the direction of James W.
York, Jr.).
**