Research output per year
Research output per year
- 1 - 50 out of 63 results
Search results
-
2024
Harmonic extension elements : Eigenproblems and error estimation
Hakula, H., 1 Jun 2024, In: Computers and Mathematics with Applications. 163, p. 27-41 15 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile25 Downloads (Pure) -
On high-order finite element solution of eigenvalue problems on isospectral surfaces
Hakula, H., 15 Aug 2024, In: Computers and Mathematics with Applications. 168, p. 22-32 11 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile18 Downloads (Pure) -
Uncertainty quantification for random domains using periodic random variables
Hakula, H., Harbrecht, H., Kaarnioja, V., Kuo, F. Y. & Sloan, I. H., Feb 2024, In: Numerische Mathematik. 156, 1, p. 273-317 45 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus)31 Downloads (Pure) -
2023
Assessing the Structural Performance of Biodegradable Capsules
Hakula, H., 14 Aug 2023, In: Applied Sciences (Switzerland). 13, 16, p. 1-17 17 p., 9232.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile29 Downloads (Pure) -
Conformal capacity and polycircular domains
Hakula, H., Nasser, M. M. S. & Vuorinen, M., 1 Mar 2023, In: Journal of Computational and Applied Mathematics. 420, p. 1-15 15 p., 114802.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus)91 Downloads (Pure) -
Effects of Internal Boundary Layers and Sensitivity on Frequency Response of Shells of Revolution
Hakula, H., Sept 2023, In: Vibration. 6, 3, p. 566-583 18 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile31 Downloads (Pure) -
Free vibration of perforated cylindrical shells of revolution: Asymptotics and effective material parameters
Giani, S. & Hakula, H., 1 Jan 2023, In: Computer Methods in Applied Mechanics and Engineering. 403, p. 1-22 22 p., 115700.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile5 Citations (Scopus)94 Downloads (Pure) -
On effects of concentrated loads on perforated sensitive shells of revolution
Giani, S. & Hakula, H., 15 Aug 2023, In: Journal of Computational and Applied Mathematics. 428, 115165.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)50 Downloads (Pure) -
On Long-Range Characteristic Length Scales of Shell Structures
Hakula, H., 6 Mar 2023, In: Eng. 4, 1, p. 884-902 19 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)42 Downloads (Pure) -
Stochastic collocation method for computing eigenspaces of parameter-dependent operators
Grubišić, L., Saarikangas, M. & Hakula, H., Jan 2023, In: Numerische Mathematik. 153, 1, p. 85-110 26 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile4 Citations (Scopus)70 Downloads (Pure) -
2022
High order approximations of the operator Lyapunov equation have low rank
Grubišić, L. & Hakula, H., Dec 2022, In: BIT Numerical Mathematics. 62, 4, p. 1433-1459 27 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile35 Downloads (Pure) -
Low-Rank Approximation of Frequency Response Analysis of Perforated Cylinders under Uncertainty
Hakula, H. & Laaksonen, M., 1 Apr 2022, In: Applied Sciences (Switzerland). 12, 7, p. 1-17 17 p., 3559.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)59 Downloads (Pure) -
On Computational Asymptotic Analysis of General Sensitive Shells of Revolution
Hakula, H., Sept 2022, In: Applied Mechanics. 3, 3, p. 1091-1106 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile5 Citations (Scopus)40 Downloads (Pure) -
Resolving Boundary Layers with Harmonic Extension Finite Elements
Hakula, H., Aug 2022, In: Mathematical and computational applications. 27, 4, p. 1-16 16 p., 57.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile49 Downloads (Pure) -
Stochastic Static Analysis of Planar Elastic Structures with Multiple Spatially Uncertain Material Parameters
Hakula, H., Sept 2022, In: Applied Mechanics. 3, 3, p. 974-994 21 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)63 Downloads (Pure) -
Subspace reduction for stochastic planar elasticity
Hakula, H. & Laaksonen, M., 2022, In: Applied Mechanics. 3, 1, p. 1-13Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile53 Downloads (Pure) -
2021
A Posteriori Error Estimates for Elliptic Eigenvalue Problems Using Auxiliary Subspace Techniques
Giani, S., Grubišić, L., Hakula, H. & Ovall, J. S., Sept 2021, In: JOURNAL OF SCIENTIFIC COMPUTING. 88, 3, 55.Research output: Contribution to journal › Article › Scientific › peer-review
7 Citations (Scopus) -
Conformal moduli of symmetric circular quadrilaterals with cusps
Hakula, H., Nasyrov, S. & Vuorinen, M., 2021, In: Electronic Transactions on Numerical Analysis. 54, p. 460-482 23 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile4 Citations (Scopus)86 Downloads (Pure) -
On effects of perforated domains on parameter-dependent free vibration
Giani, S. & Hakula, H., 1 Oct 2021, In: Journal of Computational and Applied Mathematics. 394, 14 p., 113526.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile6 Citations (Scopus)100 Downloads (Pure) -
2020
Adaptive reference elements via harmonic extensions and associated inner modes
Hakula, H., 1 Dec 2020, In: Computers and Mathematics with Applications. 80, 11, p. 2272-2288 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus)61 Downloads (Pure) -
On effective material parameters of thin perforated shells under static loading
Giani, S. & Hakula, H., 1 Aug 2020, In: Computer Methods in Applied Mechanics and Engineering. 367, 18 p., 113094.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access4 Citations (Scopus) -
What do we hear from a drum? A data-consistent approach to quantifying irreducible uncertainty on model inputs by extracting information from correlated model output data
Butler, T. & Hakula, H., 1 Oct 2020, In: Computer Methods in Applied Mechanics and Engineering. 370, 21 p., 113228.Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
2019
Asymptotic convergence of spectral inverse iterations for stochastic eigenvalue problems
Hakula, H. & Laaksonen, M., 1 Jan 2019, In: Numerische Mathematik. 142, 3, p. 577-609 33 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile9 Citations (Scopus)250 Downloads (Pure) -
Frequency response analysis of perforated shells with uncertain materials and damage
Hakula, H. & Laaksonen, M., 1 Dec 2019, In: Applied Sciences (Switzerland). 9, 24, p. 1-22 22 p., 5299.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile8 Citations (Scopus)87 Downloads (Pure) -
Multiparametric shell eigenvalue problems
Laaksonen, M. & Hakula, H., 1 Jan 2019, In: Computer Methods in Applied Mechanics and Engineering. 343, p. 721-745 25 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access7 Citations (Scopus) -
On capacity computation for symmetric polygonal condensers
Bezrodnykh, S., Bogatyrëv, A., Goreinov, S., Grigor'ev, O., Hakula, H. & Vuorinen, M., 1 Dec 2019, In: Journal of Computational and Applied Mathematics. 361, p. 271-282 12 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access12 Citations (Scopus) -
Pointwise error estimate of the Legendre expansion: The known and unknown features
Babuska, I. & Hakula, H., 1 Mar 2019, In: Computer Methods in Applied Mechanics and Engineering. 345, p. 748-773 26 p.Research output: Contribution to journal › Article › Scientific › peer-review
8 Citations (Scopus) -
The Conjugate Function Method and Conformal Mappings in Multiply Connected Domains
Hakula, H., Quach, T. & Rasila, A., 2019, In: SIAM Journal on Scientific Computing. 41, 3, p. A1753-A1776 24 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus)448 Downloads (Pure) -
2018
An a posteriori estimator of eigenvalue/eigenvector error for penalty-type discontinuous Galerkin methods
Giani, S., Grubisic, L., Hakula, H. & Ovall, J. S., Feb 2018, In: Applied Mathematics and Computation. 319, p. 562-574Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Conformal modulus and planar domains with strong singularities and cusps
Hakula, H., Rasila, A. & Vuorinen, M., 1 Jan 2018, In: Electronic Transactions on Numerical Analysis. 48, p. 462-478 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile8 Citations (Scopus)255 Downloads (Pure) -
Cylindrical Shell with Junctions: Uncertainty Quantification of Free Vibration and Frequency Response Analysis
Laaksonen, M., Hakula, H. & Kaarnioja, V., 2 Dec 2018, In: Shock and Vibration. 2018, 16 p., 5817940.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile4 Citations (Scopus)184 Downloads (Pure) -
Efficient finite element method to estimate eddy current loss due to random interlaminar contacts in electrical sheets
Shah, S. B., Rasilo, P., Hakula, H. & Arkkio, A., 2018, In: INTERNATIONAL JOURNAL OF NUMERICAL MODELLING: ELECTRONIC NETWORKS DEVICES AND FIELDS. 31, 4, 8 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)350 Downloads (Pure) -
Spatial Mappings for Planning and Optimization of Cellular Networks
G., D. G., Hakula, H., Rasila, A. & Hamalainen, J., 2018, In: IEEE-ACM Transactions on Networking . 26, 1, p. 175-188 14 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile16 Citations (Scopus)320 Downloads (Pure) -
2017
A Posteriori Estimates Using Auxiliary Subspace Techniques
Hakula, H., Neilan, M. & Ovall, J. S., 1 Jul 2017, In: JOURNAL OF SCIENTIFIC COMPUTING. 72, 1, p. 97-127 31 p.Research output: Contribution to journal › Article › Scientific › peer-review
16 Citations (Scopus) -
Stochastic Galerkin approximation of the Reynolds equation with irregular film thickness
Gustafsson, T., Hakula, H. & Leinonen, M., Oct 2017, In: Computers and Mathematics with Applications. 74, 7, p. 1590-1606Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile6 Citations (Scopus)91 Downloads (Pure) -
2015
A Maximum Cluster Algorithm for Checking the Feasibility of Dial-A-Ride Instances
Hame, L. & Hakula, H., 2015, In: TRANSPORTATION SCIENCE. 49, 2, p. 295-310Research output: Contribution to journal › Article › Scientific › peer-review
19 Citations (Scopus) -
Approximate methods for stochastic eigenvalue problems
Hakula, H., Kaarnioja, V. & Laaksonen, M., 2015, In: Applied Mathematics and Computation. 267, p. 664-681Research output: Contribution to journal › Article › Scientific › peer-review
21 Citations (Scopus) -
Hybrid Stochastic Finite Element Method for Mechanical Vibration Problems
Hakula, H. & Laaksonen, M., 2015, In: Shock and Vibration. 2015, p. 812069Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)130 Downloads (Pure) -
2014
Application of stochastic Galerkin FEM to the complete electrode model of electrical impedance tomography
Leinonen, M., Hakula, H. & Hyvonen, N., 2014, In: Journal of Computational Physics. 269, 1, p. 181-200Research output: Contribution to journal › Article › Scientific › peer-review
14 Citations (Scopus) -
hp-boundary layer mesh sequences with applications to shell problems
Hakula, H., 2014, In: Computers and Mathematics with Applications. 67, 4, p. 899-917Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
On hp-adaptive solution of thin shells of revolution
Hakula, H. & Tuominen, T., 2014, In: IOP Conference Series: Materials Science and Engineering. 10, 1, 10 p., 012163.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile158 Downloads (Pure) -
Reconstruction algorithm based on stochastic Galerkin finite element method for electrical impedance tomography
Hakula, H., Hyvönen, N. & Leinonen, M., 2014, In: Inverse Problems. 30, 6, p. 065006Research output: Contribution to journal › Article › Scientific › peer-review
12 Citations (Scopus) -
2013
Computation of exterior moduli of quadrilaterals
Hakula, H., Rasila, A. & Vuorinen, M., 2013, In: Electronic Transactions on Numerical Analysis. 40, p. 436-451Research output: Contribution to journal › Article › Scientific › peer-review
13 Citations (Scopus) -
Dynamic journeying in scheduled networks
Hame, L. & Hakula, H., 2013, In: IEEE Transactions on Intelligent Transportation Systems. 14, 1, p. 360-369 10 p., 6293897.Research output: Contribution to journal › Article › Scientific › peer-review
11 Citations (Scopus) -
Dynamic journeying under uncertainty
Häme, L. & Hakula, H., 16 Mar 2013, In: European Journal of Operational Research. 225, 3, p. 455-471 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
17 Citations (Scopus) -
Mathematica implementation of the high order finite element method applied to eigenproblems
Hakula, H. & Tuominen, T., May 2013, In: Computing: Archives for Scientific Computing. 95, SUPPL.1Research output: Contribution to journal › Article › Scientific › peer-review
18 Citations (Scopus) -
Routing by ranking: A link analysis method for the constrained dial-A-ride problem
Häme, L. & Hakula, H., 2013, In: Operations Research Letters. 41, 6, p. 664-669 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
2012
Conjugate function method for numerical conformal mappings
Hakula, H., Quach, T. & Rasila, A., 2012, In: Journal of Computational and Applied Mathematics. 237, p. 340-353Research output: Contribution to journal › Article › Scientific › peer-review
17 Citations (Scopus) -
Fine-tuning electrode information in electrical impedance tomography
Darde, J., Hakula, H., Hyvönen, N. & Staboulis, S., 2012, In: Inverse Problems and Imaging. 6, 6, p. 399-421Research output: Contribution to journal › Article › Scientific › peer-review
33 Citations (Scopus) -
On the hp-adaptive solution of complete electrode model forward problems of electrical impedance tomography
Hakula, H., Hyvönen, N. & Tuominen, T., 2012, In: Journal of Computational and Applied Mathematics. 236, 236, p. 4645-4659Research output: Contribution to journal › Article › Scientific › peer-review
12 Citations (Scopus)