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Sigurdur F. Hafstein
Person information
- affiliation: University of Iceland, Reykjavik, Iceland
- affiliation (PhD 2002): University of Duisburg-Essen, Germany
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2020 – today
- 2024
- [j21]Peter Giesl
, Sigurdur F. Hafstein
Construction of a Contraction Metric for Time-Periodic Systems Using Meshless Collocation. IEEE Control. Syst. Lett. 8: 772-777 (2024) - [c38]Sigurdur Freyr Hafstein:
Efficient C++ Implementations of Generalized Interpolation in Reproducing Kernel Hilbert Spaces to Compute Lyapunov Functions. ECC 2024: 1071-1076 - [i3]Gerardo Barrera, Eyleifur Bjarkason, Sigurdur F. Hafstein:
The stability of the multivariate geometric Brownian motion as a bilinear matrix inequality problem. CoRR abs/2403.16765 (2024) - 2023
- [j20]Stefania Andersen
Common Lyapunov Functions for Switched Linear Systems: Linear Programming-Based Approach. IEEE Control. Syst. Lett. 7: 901-906 (2023) - [j19]Jacopo Piccini
Sufficient Stability Conditions for a Class of Switched Systems With Multiple Steady States. IEEE Control. Syst. Lett. 7: 2653-2658 (2023) - [j18]Sigurdur F. Hafstein
Lyapunov Functions for Switched Linear Systems: Proof of Convergence for an LP Computational Approach. IEEE Control. Syst. Lett. 7: 3283-3288 (2023) - [j17]Sigurdur F. Hafstein, Aneel Tanwani
Linear programming based lower bounds on average dwell-time via multiple Lyapunov functions. Eur. J. Control 74: 100838 (2023) - [j16]Peter Giesl, Sigurdur F. Hafstein
Triangulations and Error Estimates for Interpolating Lyapunov Functions. SN Comput. Sci. 4(4): 364 (2023) - [c37]Peter Giesl, Sigurdur F. Hafstein, Iman Mehrabinezhad
Positively Invariant Sets for ODEs and Numerical Integration. ICINCO (1) 2023: 44-53 - [c36]Peter Giesl, Sigurdur F. Hafstein, Iman Mehrabinezhad
Contraction Metrics by Numerical Integration and Quadrature: Uniform Error Estimate. ICINCO (1) 2023: 196-205 - [c35]Stefania Andersen, Elias August, Sigurdur F. Hafstein, Jacopo Piccini
Lyapunov Function Computation for Linear Switched Systems: Comparison of SDP and LP Approaches. SIMULTECH 2023: 61-70 - [i2]Sigurdur F. Hafstein, Aneel Tanwani:
Linear Programming based Lower Bounds on Average Dwell-Time via Multiple Lyapunov Functions. CoRR abs/2303.17858 (2023) - 2022
- [j15]Carlos Argáez
Eigenpairs for the Analysis of Complete Lyapunov Functions. Complex. 2022: 3160052:1-3160052:17 (2022) - [j14]Mauricio S. Louzeiro, Christoph Kawan
A Projected Subgradient Method for the Computation of Adapted Metrics for Dynamical Systems. SIAM J. Appl. Dyn. Syst. 21(4): 2610-2641 (2022) - [j13]Peter Giesl, Sigurdur F. Hafstein, Iman Mehrabinezhad
Robustness of Numerically Computed Contraction Metrics. SN Comput. Sci. 3(3): 257 (2022) - [c34]Sigurdur Freyr Hafstein:
Efficient Verification of CPA Lyapunov Functions. ICINCO 2022: 120-129 - 2021
- [j12]Peter Giesl
Computation and verification of contraction metrics for exponentially stable equilibria. J. Comput. Appl. Math. 390: 113332 (2021) - [j11]Peter Giesl
Minimization with differential inequality constraints applied to complete Lyapunov functions. Math. Comput. 90(331): 2137-2160 (2021) - [j10]Christoph Kawan
A Subgradient Algorithm for Data-Rate Optimization in the Remote State Estimation Problem. SIAM J. Appl. Dyn. Syst. 20(4): 2142-2173 (2021) - [j9]Christoph Kawan
ResEntSG: Restoration entropy estimation for dynamical systems via Riemannian metric optimization. SoftwareX 15: 100743 (2021) - [c33]Peter Giesl
Uniformly Regular Triangulations for Parameterizing Lyapunov Functions. ICINCO 2021: 549-557 - [c32]Peter Giesl
Robustness of Contraction Metrics Computed by Radial Basis Functions. ICINCO 2021: 592-599 - [c31]Carlos Argáez
Comparison of Different Radial Basis Functions in Dynamical Systems. SIMULTECH 2021: 394-405 - 2020
- [j8]Sigurdur Albertsson, Sigurdur F. Hafstein
Simplicial complex with approximate rotational symmetry: A general class of simplicial complexes. J. Comput. Appl. Math. 363: 413-425 (2020) - [j7]Peter Giesl
Automatic Determination of Connected Sublevel Sets of CPA Lyapunov Functions. SIAM J. Appl. Dyn. Syst. 19(2): 1029-1056 (2020) - [j6]Carlos Argáez
Update (2.0) to LyapXool: Eigenpairs and new classification methods. SoftwareX 12: 100616 (2020) - [c30]Sigurdur F. Hafstein
Sliding Modes and Lyapunov Functions for Differential Inclusions by Linear Programming. ICINCO (Selected Papers) 2020: 584-606 - [c29]Carlos Argáez
Evaluation of Lyapunov Function Candidates through Averaging Iterations. ICINCO 2020: 734-744 - [c28]Sigurdur F. Hafstein:
CPA Lyapunov Functions: Switched Systems vs. Differential Inclusions. ICINCO 2020: 745-753
2010 – 2019
- 2019
- [j5]Carlos Argáez
LyapXool - a program to compute complete Lyapunov functions. SoftwareX 10: 100325 (2019) - [c27]Sigurdur Freyr Hafstein:
Numerical ODE solvers and integration methods in the computation of CPA Lyapunov functions. ECC 2019: 1136-1141 - [c26]Carlos Argáez
Improved estimation of the chain-recurrent set. ECC 2019: 1622-1627 - [c25]Sigurdur F. Hafstein
Numerical Analysis Project in ODEs for Undergraduate Students. ICCS (5) 2019: 421-434 - [c24]Carlos Argáez
Clustering Algorithm for Generalized Recurrences using Complete Lyapunov Functions. ICINCO (1) 2019: 138-146 - [c23]Sigurdur F. Hafstein:
Lyapunov Functions for Linear Stochastic Differential Equations: BMI Formulation of the Conditions. ICINCO (1) 2019: 147-155 - [c22]Hjörtur Björnsson, Sigurdur F. Hafstein:
Algorithm and Software to Generate Code for Wendland Functions in Factorized Form. ICINCO (1) 2019: 156-162 - [c21]Carlos Argáez
Middle Point Reduction of the Chain-recurrent Set. SIMULTECH 2019: 141-152 - [i1]Peter Giesl, Sigurdur F. Hafstein, Iman Mehrabinezhad:
Computation and verification of contraction metrics for exponentially stable equilibria. CoRR abs/1909.10334 (2019) - 2018
- [j4]Skuli Gudmundsson, Sigurdur F. Hafstein
Probabilistic Basin of Attraction and Its Estimation Using Two Lyapunov Functions. Complex. 2018: 2895658:1-2895658:9 (2018) - [c20]Sigurdur Freyr Hafstein:
Common Lyapunov function computation for discrete-time systems. CDC 2018: 3211-3216 - [c19]Carlos Argáez
Computation of Complete Lyapunov Functions for Three-Dimensional Systems. CDC 2018: 4059-4064 - [c18]Peter Giesl, Carlos Argáez, Sigurdur F. Hafstein, Holger Wendland:
Construction of a Complete Lyapunov Function using Quadratic Programming. ICINCO (1) 2018: 570-578 - [c17]Hjörtur Björnsson, Peter Giesl, Skuli Gudmundsson, Sigurdur F. Hafstein:
Local Lyapunov Functions for Nonlinear Stochastic Differential Equations by Linearization. ICINCO (1) 2018: 589-596 - [c16]Hjörtur Björnsson, Sigurdur F. Hafstein:
Verification of a Numerical Solution to a Collocation Problem. ICINCO (1) 2018: 597-604 - [c15]Carlos Argáez
Iterative Construction of Complete Lyapunov Functions. SIMULTECH 2018: 211-222 - 2017
- [c14]Jòhann Björnsson, Sigurdur F. Hafstein
Efficient Lyapunov Function computation for systems with multiple exponentially stable equilibria. ICCS 2017: 655-664 - [c13]Carlos Argáez
Analysing Dynamical Systems - Towards Computing Complete Lyapunov Functions. SIMULTECH 2017: 134-144 - [c12]Carlos Argáez
Complete Lyapunov Functions: Computation and Applications. SIMULTECH (Selected Papers) 2017: 200-221 - [c11]Sigurdur F. Hafstein
Fast Algorithms for Computing Continuous Piecewise Affine Lyapunov Functions. SIMULTECH (Selected Papers) 2017: 274-299 - [c10]Carlos Argáez
Wendland Functions - A C++ Code to Compute Them. SIMULTECH 2017: 323-330 - [c9]Sigurdur F. Hafstein:
Efficient Algorithms for Simplicial Complexes Used in the Computation of Lyapunov Functions for Nonlinear Systems. SIMULTECH 2017: 398-409 - 2015
- [j3]Peter Giesl
Computation and Verification of Lyapunov Functions. SIAM J. Appl. Dyn. Syst. 14(4): 1663-1698 (2015) - 2014
- [c8]Sigurdur F. Hafstein
Continuous and piecewise affine Lyapunov functions using the Yoshizawa construction. ACC 2014: 548-553 - [c7]Peter Giesl
Implementation of a fan-like triangulation for the CPA method to compute Lyapunov functions. ACC 2014: 2989-2994 - [c6]Johann Bjornsson, Peter Giesl
Computation of continuous and piecewise affine Lyapunov functions by numerical approximations of the Massera construction. CDC 2014: 5506-5511 - [c5]Huijuan Li, Sigurdur F. Hafstein
Computation of Lyapunov functions for discrete-time systems using the Yoshizawa construction. CDC 2014: 5512-5517 - 2013
- [c4]Sigurdur F. Hafstein:
Implementation of Simplicial Complexes for CPA Functions in C++11 using the Armadillo Linear Algebra Library. SIMULTECH 2013: 49-57 - 2011
- [j2]Andreas Pedersen
Efficient Sampling of Saddle Points with the Minimum-Mode Following Method. SIAM J. Sci. Comput. 33(2): 633-652 (2011)
2000 – 2009
- 2004
- [j1]Roland Chrobok, Andreas Pottmeier, Sigurdur F. Hafstein
Traffic Forecast in Large Scale Freeway Networks. Int. J. Bifurc. Chaos 14(6): 1995-2004 (2004) - [c3]Andreas Pottmeier, Roland Chrobok, Sigurdur F. Hafstein, Florian Mazur, Michael Schreckenberg:
OLSIM: Up-to-date traffic information on the web. Communications, Internet, and Information Technology 2004: 572-577 - [c2]Florian Mazur, Roland Chrobok, Sigurdur F. Hafstein, Andreas Pottmeier, Michael Schreckenberg:
Future of Traffic Information: Online-Simulation of a Large Scale Freeway Network. ICWI 2004: 665-672 - [c1]Daniel Weber, Roland Chrobok, Sigurdur F. Hafstein, Florian Mazur, Andreas Pottmeier, Michael Schreckenberg:
OLSIM: Inter-urban Traffic Information. IICS 2004: 296-306
Coauthor Index
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