Nicholas Battista

Ph.D. Student in Computational Applied Mathematics
Department of Applied Math and Statistics
Stony Brook University

TA: AMS: 361 (Differential Equations)
Office Hours: Tues/Thurs 1pm-2pm
Office: Harriman Bldg. H016
Email: nickabattista@gmail.com


Disclaimer: This website is primarily used for showing solutions from AMS-528 homework. Sorry about its lack of luster and overall appeal.
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Weight-Training Links

My Personal Training Log I.P.A. Pennslyvania Meet Video Rules of the Weight-lifting Man


Research Projects of Past and Present

Master's Thesis: Spectrally Accurate Initial Data in Numerical Relativity
Time Evolution of Non-Singular Primordial Black Holes
A Non-Intimidating Introduction to Magnetohydrodynamics
Heroin Epidemic Modeling
Monotonic and Periodic Properties of Non-Autonomous Rational Difference Equations
Post-Newtonian N-Body Modeling


Numerical Solutions from Homework 1

Problem 2

Lax-Friedrich Lax-Wendroff Upwind MacCormack Leap-Frog




Numerical Solutions from Homework 2

Problem 4

N Central-Implicit (R=0.8) Crank-Nicholson (R=0.8) Central-Implicit (R=1.5) Crank-Nicholson (R=1.5)
200 CIM_R08_N200 CN_R08_N200 CIM_R15_N200 CN_R15_N200
400 CIM_R08_N400 CN_R08_N400 CIM_R15_N400 CN_R15_N400
800 CIM_R08_N800 CN_R08_N800 CIM_R15_N800 CN_R15_N800
1600 CIM_R08_N1600 CN_R08_N1600 CIM_R15_N1600 CN_R15_N1600

Problem 5

SYSTEM OF LINEAR HYPERBOLIC EQUATIONS MOVIE: UPWIND
SYSTEM OF LINEAR HYPERBOLIC EQUATIONS MOVIE: LAX-WENDROFF




Numerical Solutions from Homework 4

Problems 2 and 3

N Lax-Friedrich (CFL=0.4) Lax-Wendroff (CFL=0.25) Godunov (CFL=0.05) Roe Approximation (CFL=0.05) Van-Leer Approx. (CFL=0.05) Enquist-Osher (CFL=0.05)
200 LF_200 LW_200 GOD_200 ROE_200 VL_200 EO_200
400 LF_400 LW_400 GOD_400 ROE_400 VL_400 EO_400
800 LF_800 LW_800 GOD_800 ROE_800 VL_800 EO_800
1600 LF_1600 LW_1600 GOD_1600 ROE_1600 VL_1600 EO_1600

Problems 4 and 5

Limiter Scheme Problem 4: Sinusoidal Wave Problem 5: Square Wave
Super-Bee SB Prob4 SB Prob5
Van-Leer VL Prob4 VL Prob5
CO (with PSI=1.5) CO Prob4 CO Prob5
Beam-Warming BW Prob4 BW Prob5




External Links

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