Ulrich Hetmaniuk
Ulrich Hetmaniuk
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Year
A discontinuous Galerkin method with Lagrange multipliers for the solution of Helmholtz problems in the mid-frequency regime
C Farhat, I Harari, U Hetmaniuk
Computer methods in applied mechanics and engineering 192 (11-12), 1389-1419, 2003
2982003
A comparison of eigensolvers for large‐scale 3D modal analysis using AMG‐preconditioned iterative methods
P Arbenz, UL Hetmaniuk, RB Lehoucq, RS Tuminaro
International Journal for Numerical Methods in Engineering 64 (2), 204-236, 2005
1312005
Anasazi software for the numerical solution of large-scale eigenvalue problems
CG Baker, UL Hetmaniuk, RB Lehoucq, HK Thornquist
ACM Transactions on Mathematical Software (TOMS) 36 (3), 1-23, 2009
1262009
The discontinuous enrichment method for multiscale analysis
C Farhat, I Harari, U Hetmaniuk
Computer Methods in Applied Mechanics and Engineering 192 (28-30), 3195-3209, 2003
992003
Stability estimates for a class of Helmholtz problems
U Hetmaniuk
Communications in Mathematical Sciences 5 (3), 665-678, 2007
982007
A linearized method for the frequency analysis of three-dimensional fluid/structure interaction problems in all flow regimes
M Lesoinne, M Sarkis, U Hetmaniuk, C Farhat
Computer Methods in Applied Mechanics and Engineering 190 (24-25), 3121-3146, 2001
802001
Review and assessment of interpolatory model order reduction methods for frequency response structural dynamics and acoustics problems
U Hetmaniuk, R Tezaur, C Farhat
International Journal for Numerical Methods in Engineering 90 (13), 1636-1662, 2012
752012
Basis selection in LOBPCG
U Hetmaniuk, R Lehoucq
Journal of Computational Physics 218 (1), 324-332, 2006
552006
A special finite element method based on component mode synthesis
UL Hetmaniuk, RB Lehoucq
ESAIM: Mathematical Modelling and Numerical Analysis 44 (3), 401-420, 2010
492010
Negative differential resistance in boron nitride graphene heterostructures: physical mechanisms and size scaling analysis
Y Zhao, Z Wan, X Xu, SR Patil, U Hetmaniuk, MP Anantram
Scientific reports 5 (1), 1-10, 2015
392015
Local absorbing boundary conditions for elliptical shaped boundaries
M Medvinsky, E Turkel, U Hetmaniuk
Journal of Computational Physics 227 (18), 8254-8267, 2008
392008
An adaptive scheme for a class of interpolatory model reduction methods for frequency response problems
U Hetmaniuk, R Tezaur, C Farhat
International Journal for Numerical Methods in Engineering 93 (10), 1109-1124, 2013
372013
On a parallel multilevel preconditioned Maxwell eigensolver
P Arbenz, M Bečka, R Geus, U Hetmaniuk, T Mengotti
parallel Computing 32 (2), 157-165, 2006
342006
A fictitious domain decomposition method for the solution of partially axisymmetric acoustic scattering problems. Part I: Dirichlet boundary conditions
C Farhat, U Hetmaniuk
International Journal for Numerical Methods in Engineering 54 (9), 1309-1332, 2002
312002
Improved accuracy for the Helmholtz equation in unbounded domains
E Turkel, C Farhat, U Hetmaniuk
International journal for numerical methods in engineering 59 (15), 1963-1988, 2004
262004
Explicit a posteriori error estimates for eigenvalue analysis of heterogeneous elastic structures
TF Walsh, GM Reese, UL Hetmaniuk
Computer methods in applied mechanics and engineering 196 (37-40), 3614-3623, 2007
242007
A nested dissection approach to modeling transport in nanodevices: Algorithms and applications
U Hetmaniuk, Y Zhao, MP Anantram
International journal for numerical methods in engineering 95 (7), 587-607, 2013
192013
The approximate component mode synthesis special finite element method in two dimensions: parallel implementation and numerical results
A Heinlein, U Hetmaniuk, A Klawonn, O Rheinbach
Journal of Computational and Applied Mathematics 289, 116-133, 2015
182015
Error estimates for Galerkin reduced-order models of the semi-discrete wave equation
D Amsallem, U Hetmaniuk
ESAIM: Mathematical Modelling and Numerical Analysis 48 (1), 135-163, 2014
182014
A fictitious domain decomposition method for the solution of partially axisymmetric acoustic scattering problems. Part 2: Neumann boundary conditions
U Hetmaniuk, C Farhat
International Journal for Numerical Methods in Engineering 58 (1), 63-81, 2003
182003
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Articles 1–20