V.N.S.R. Dwarka – Research output — TU Delft Research Portal

6 Article
2 Report
2 Conference contribution
1 Dissertation (TU Delft)

11 results

2024
A matrix-free parallel solution method for the three-dimensional heterogeneous Helmholtz equation
Chen, J., Dwarka, V. & Vuik, C., 2024, In: Electronic Transactions on Numerical Analysis. 59, p. 270 - 294 25 p.
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
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7 Downloads (Pure)
A matrix-free parallel two-level deflation preconditioner for two-dimensional heterogeneous Helmholtz problems
Chen, J., Dwarka, V. & Vuik, C., 2024, In: Journal of Computational Physics. 514, 113264.
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
File
11 Downloads (Pure)
Matrix-Free Parallel Preconditioned Iterative Solvers for the 2D Helmholtz Equation Discretized with Finite Differences
Chen, J., Dwarka, V. & Vuik, C., 2024, Mathematics in Industry: SCEE 2022, Amsterdam, The Netherlands, July 2022. van Beurden, M., Budko, N. V., Ciuprina, G., Schilders, W., Bansal, H. & Barbulescu, R. (eds.). 1 ed. Springer, Vol. 43. p. 61-68 8 p. (Mathematics in Industry; vol. 43).
Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Open Access
File
1 Downloads (Pure)
2022
Inexact Subdomain Solves Using Deflated GMRES for Helmholtz Problems
Bootland, N., Dwarka, V., Jolivet, P., Dolean, V. & Vuik, C., 2022, Domain Decomposition Methods in Science and Engineering XXVI. Brenner, S. C., Klawonn, A., Xu, J., Chung, E., Zou, J. & Kwok, F. (eds.). Springer, p. 127-135 9 p. (Lecture Notes in Computational Science and Engineering; vol. 145).
Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Open Access
File
33 Downloads (Pure)
Iterative methods for time-harmonic waves: Towards accuracy and scalability
Dwarka, V. N. S. R., 2022, 211 p.
Research output: Thesis › Dissertation (TU Delft)

Open Access
File
146 Downloads (Pure)
Scalable multi-level deflation preconditioning for highly indefinite time-harmonic waves
Dwarka, V. & Vuik, C., 2022, In: Journal of Computational Physics. 469, p. 1-28 28 p., 111327.
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
File
58 Downloads (Pure)
2021
Pollution and accuracy of solutions of the Helmholtz equation: A novel perspective from the eigenvalues
Dwarka, V. & Vuik, C., 2021, In: Journal of Computational and Applied Mathematics. 395, 21 p., 113549.
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
File
4 Citations (Scopus)

74 Downloads (Pure)
Towards accuracy and scalability: Combining Isogeometric Analysis with deflation to obtain scalable convergence for the Helmholtz equation
Dwarka, V., Tielen, R., Möller, M. & Vuik, C., 2021, In: Computer Methods in Applied Mechanics and Engineering. 377, 23 p., 113694.
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
File
6 Citations (Scopus)

65 Downloads (Pure)
2020
Scalable Convergence Using Two-Level Deflation Preconditioning for the Helmholtz Equation
Dwarka, V. & Vuik, C., 2020, In: SIAM Journal on Scientific Computing. 42, 2, p. A901-A928
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
File
10 Citations (Scopus)

61 Downloads (Pure)
Scalable multi-level deflation preconditioning for the highly indefinite Helmholtz equation
Dwarka, V. & Vuik, C., 2020, Delft: Delft University of Technology. 31 p. (Reports of the Delft Institute of Applied Mathematics; vol. 20-04)
Research output: Book/Report › Report › Professional

Open Access
File
37 Downloads (Pure)
2018

Scalable Convergence Using Two-level Deflation Preconditioning for the Helmholtz Equation
Dwarka, V. & Vuik, C., 2018, Delft: Delft University of Technology. 35 p. (Reports of the Delft Institute of Applied Mathematics; vol. 18-03)
Research output: Book/Report › Report › Professional