Unknown input observer design for a class of coupled wave PDE systems.

Birgit Jacob https://orcid.org/0000-0002-8775-4424

Najmeh Ghaderi Birgit Jacob Unknown input observer design for a class of coupled wave PDE systems. 2026 June 1769-1779 99 Int. J. Control 6 https://doi.org/10.1080/00207179.2025.2612055 db/journals/ijcon/ijcon99.html#GhaderiJ26 streams/journals/ijcon

Anthony Hastir Birgit Jacob Hans Zwart H∞-control for a class of boundary controlled hyperbolic PDEs. 2025 42 IMA J. Math. Control. Inf. 3 https://doi.org/10.1093/imamci/dnaf023 db/journals/imamci/imamci42.html#HastirJZ25 streams/journals/imamci

Birgit Jacob Lukas A. Vorberg Christian Wyss Computing the quadratic numerical range. 116049 2025 453 J. Comput. Appl. Math. https://doi.org/10.1016/j.cam.2024.116049 db/journals/jcam/jcam453.html#JacobVW25 streams/journals/jcam

Anthony Hastir Birgit Jacob Hans Zwart Riccati equations and LQ-optimal control for a class of hyperbolic PDEs. 106244 2025 205 Syst. Control. Lett. https://doi.org/10.1016/j.sysconle.2025.106244 db/journals/scl/scl205.html#HastirJZ25 streams/journals/scl

Anthony Hastir Birgit Jacob LQ optimal control for infinite-dimensional passive systems. 106279 2025 206 Syst. Control. Lett. https://doi.org/10.1016/j.sysconle.2025.106279 db/journals/scl/scl206.html#HastirJ25 streams/journals/scl

Anthony Hastir Birgit Jacob Hans Zwart Linear-Quadratic Optimal Control for Boundary Controlled Networks of Waves. 1878-1901 2025 63 SIAM J. Control. Optim. 3 https://doi.org/10.1137/24m1640768 db/journals/siamco/siamco63.html#HastirJZ25 streams/journals/siamco

Anthony Hastir Birgit Jacob Hans Zwart Spectral Analysis of a Class of Linear Hyperbolic Partial Differential Equations. 766-771 2024 8 IEEE Control. Syst. Lett. https://doi.org/10.1109/LCSYS.2024.3403472 db/journals/csysl/csysl8.html#HastirJZ24

Michael Günther 0005 Birgit Jacob Claudia Totzeck Data-driven adjoint-based calibration of port-Hamiltonian systems in time domain. 957-977 2024 December 36 Math. Control. Signals Syst. 4 https://doi.org/10.1007/s00498-024-00389-2 db/journals/mcss/mcss36.html#GuntherJT24 streams/journals/mcss

Birgit Jacob Claudia Totzeck Port-Hamiltonian Structure of Interacting Particle Systems and Its Mean-Field Limit. 1247-1266 2024 22 Multiscale Model. Simul. 4 https://doi.org/10.1137/23m1547731 db/journals/mmas/mmas22.html#JacobT24 streams/journals/mmas

René Hosfeld Birgit Jacob Felix L. Schwenninger Marius Tucsnak Input-to-State Stability for Bilinear Feedback Systems. 1369-1389 2024 62 SIAM J. Control. Optim. 3 https://doi.org/10.1137/23m155788x db/journals/siamco/siamco62.html#HosfeldJST24

Andreas Bartel Michael Günther 0005 Birgit Jacob Timo Reis Operator splitting based dynamic iteration for linear differential-algebraic port-Hamiltonian systems. 1-34 2023 October 155 Numerische Mathematik 1-2 https://doi.org/10.1007/s00211-023-01369-5 db/journals/nm/nm155.html#BartelGJR23

Birgit Jacob Andrii Mironchenko Jonathan R. Partington Fabian R. Wirth Corrigendum: Noncoercive Lyapunov Functions for Input-to-State Stability of Infinite-Dimensional Systems. 1910-1911 2023 June 61 SIAM J. Control. Optim. 3 https://doi.org/10.1137/22m1534559 db/journals/siamco/siamco61.html#JacobMPW23

Michael Günther 0005 Birgit Jacob Claudia Totzeck Structure-preserving identification of port-Hamiltonian systems - a sensitivity-based approach. 2023 abs/2301.02019 CoRR https://doi.org/10.48550/arXiv.2301.02019 db/journals/corr/corr2301.html#abs-2301-02019

Andreas Bartel Markus Clemens Michael Günther 0005 Birgit Jacob Timo Reis Port-Hamiltonian Systems Modelling in Electrical Engineering. 2023 abs/2301.02024 CoRR https://doi.org/10.48550/arXiv.2301.02024 db/journals/corr/corr2301.html#abs-2301-02024

Michael Günther 0005 Birgit Jacob Claudia Totzeck Data-driven adjoint-based calibration of port-Hamiltonian systems in time domain. 2023 abs/2301.03924 CoRR https://doi.org/10.48550/arXiv.2301.03924 db/journals/corr/corr2301.html#abs-2301-03924

Bálint Farkas Birgit Jacob Timo Reis Merlin Schmitz Operator splitting based dynamic iteration for linear infinite-dimensional port-Hamiltonian systems. 2023 abs/2302.01195 CoRR https://doi.org/10.48550/arXiv.2302.01195 db/journals/corr/corr2302.html#abs-2302-01195

Birgit Jacob Lukas A. Vorberg Christian Wyss Computing the Quadratic Numerical Range. 2023 abs/2305.16079 CoRR https://doi.org/10.48550/arXiv.2305.16079 db/journals/corr/corr2305.html#abs-2305-16079

Birgit Jacob Kirsten Morris 0001 On Solvability of Dissipative Partial Differential-Algebraic Equations. 3188-3193 2022 6 IEEE Control. Syst. Lett. https://doi.org/10.1109/LCSYS.2022.3183479 https://www.wikidata.org/entity/Q114085860 db/journals/csysl/csysl6.html#JacobM22

Birgit Jacob Andrii Mironchenko Felix L. Schwenninger Input-to-state stability for infinite-dimensional systems. 215-216 2022 34 Math. Control. Signals Syst. 1 https://doi.org/10.1007/s00498-021-00302-1 db/journals/mcss/mcss34.html#JacobMS22

René Hosfeld Birgit Jacob Felix L. Schwenninger Integral input-to-state stability of unbounded bilinear control systems. 273-295 2022 34 Math. Control. Signals Syst. 2 https://doi.org/10.1007/s00498-021-00308-9 db/journals/mcss/mcss34.html#HosfeldJS22

Andreas Bartel Michael Günther 0005 Birgit Jacob Timo Reis Operator Splitting Based Dynamic Iteration for Linear Port-Hamiltonian Systems. 2022 abs/2208.03574 CoRR https://doi.org/10.48550/arXiv.2208.03574 db/journals/corr/corr2208.html#abs-2208-03574

Michael Günther 0005 Andreas Bartel Birgit Jacob Timo Reis Dynamic iteration schemes and port-Hamiltonian formulation in coupled differential-algebraic equation circuit simulation. 430-452 2021 49 Int. J. Circuit Theory Appl. 2 https://doi.org/10.1002/cta.2870 https://www.wikidata.org/entity/Q115406180 db/journals/ijcta/ijcta49.html#GuntherBJR21

Birgit Jacob Felix L. Schwenninger Lukas A. Vorberg Correction to: Remarks on input-to-state stability of collocated systems with saturated feedback. 195 2021 33 Math. Control. Signals Syst. 1 https://doi.org/10.1007/s00498-021-00278-y db/journals/mcss/mcss33.html#JacobSV21

Birgit Jacob Julia T. Kaiser Hans Zwart Riesz Bases of Port-Hamiltonian Systems. 4646-4665 2021 59 SIAM J. Control. Optim. 6 https://doi.org/10.1137/20M1366216 db/journals/siamco/siamco59.html#JacobKZ21

Birgit Jacob Nathanael Skrepek Stability of the multidimensional wave equation in port-Hamiltonian modelling. 6188-6193 2021 CDC https://doi.org/10.1109/CDC45484.2021.9683501 conf/cdc/2021 db/conf/cdc/cdc2021.html#JacobS21 Birgit Jacob Hans Zwart Observability for port-Hamiltonian systems. 2052-2057 2021 ECC https://doi.org/10.23919/ECC54610.2021.9654840 conf/eucc/2021 db/conf/eucc/eucc2021.html#JacobZ21

Birgit Jacob Felix L. Schwenninger Lukas A. Vorberg Remarks on input-to-state stability of collocated systems with saturated feedback. 293-307 2020 32 Math. Control. Signals Syst. 3 https://doi.org/10.1007/s00498-020-00264-w db/journals/mcss/mcss32.html#JacobSV20

Birgit Jacob Sebastian Möller 0003 Christian Wyss Stability radius for infinite-dimensional interconnected systems. 104662 2020 138 Syst. Control. Lett. https://doi.org/10.1016/j.sysconle.2020.104662 db/journals/scl/scl138.html#JacobMW20

Birgit Jacob Andrii Mironchenko Jonathan R. Partington Fabian Wirth Noncoercive Lyapunov Functions for Input-to-State Stability of Infinite-Dimensional Systems. 2952-2978 2020 58 SIAM J. Control. Optim. 5 https://doi.org/10.1137/19M1297506 db/journals/siamco/siamco58.html#JacobMPW20

Michael Günther 0005 Andreas Bartel Birgit Jacob Timo Reis Dynamic iteration schemes and port-Hamiltonian formulation in coupled DAE circuit simulation. 2020 abs/2004.12951 CoRR https://arxiv.org/abs/2004.12951 db/journals/corr/corr2004.html#abs-2004-12951

Birgit Jacob Kirsten A. Morris Hans Zwart Zero dynamics for networks of waves. 310-321 2019 103 Autom. https://doi.org/10.1016/j.automatica.2019.02.010 db/journals/automatica/automatica103.html#JacobMZ19

Birgit Jacob Julia T. Kaiser On Exact Controllability of Infinite-Dimensional Linear Port-Hamiltonian Systems. 661-666 2019 3 IEEE Control. Syst. Lett. 3 https://doi.org/10.1109/LCSYS.2019.2916814 db/journals/csysl/csysl3.html#JacobK19

Andreas Frommer Birgit Jacob Karsten Kahl Christian Wyss Ian Zwaan Krylov type methods exploiting the quadratic numerical range. 2019 abs/1912.10765 CoRR http://arxiv.org/abs/1912.10765 db/journals/corr/corr1912.html#abs-1912-10765

Birgit Jacob Robert Nabiullin Jonathan R. Partington Felix L. Schwenninger Infinite-Dimensional Input-to-State Stability and Orlicz Spaces. 868-889 2018 56 SIAM J. Control. Optim. 2 https://doi.org/10.1137/16M1099467 https://www.wikidata.org/entity/Q59884601 db/journals/siamco/siamco56.html#JacobNPS18

Birgit Jacob Andrii Mironchenko Jonathan R. Partington Fabian Wirth Remarks on Input-to-State Stability and Non-Coercive Lyapunov Functions. 4803-4808 2018 CDC https://doi.org/10.1109/CDC.2018.8618712 conf/cdc/2018 db/conf/cdc/cdc2018.html#JacobMPW18

Xueran Wu Birgit Jacob Hendrik Elbern Optimal Control and Observation Locations for Time-Varying Systems on a Finite-Time Horizon. 291-316 2016 54 SIAM J. Control. Optim. 1 https://doi.org/10.1137/15M1014759 db/journals/siamco/siamco54.html#WuJE16

Birgit Jacob Kirsten Morris 0001 Root Locii for Systems Defined on Hilbert Spaces. 116-128 2016 61 IEEE Trans. Autom. Control. 1 https://doi.org/10.1109/TAC.2015.2433991 db/journals/tac/tac61.html#JacobM16

Birgit Jacob Robert Nabiullin Jonathan R. Partington Felix L. Schwenninger On input-to-state-stability and integral input-to-state-stability for parabolic boundary control systems. 2265-2269 2016 CDC https://doi.org/10.1109/CDC.2016.7798600 https://www.wikidata.org/entity/Q61308222 conf/cdc/2016 db/conf/cdc/cdc2016.html#JacobNPS16

Birgit Jacob Jonathan R. Partington Sandra Pott Applications of Laplace-Carleson Embeddings to Admissibility and Controllability. 1299-1313 2014 52 SIAM J. Control. Optim. 2 https://doi.org/10.1137/120894750 https://www.wikidata.org/entity/Q56319148 db/journals/siamco/siamco52.html#JacobPP14

Mahmoud Baroun Birgit Jacob Lahcen Maniar Roland Schnaubelt Semilinear observation systems. 924-929 2013 62 Syst. Control. Lett. 10 https://doi.org/10.1016/j.sysconle.2013.06.014 db/journals/scl/scl62.html#BarounJMS13

Christian Wyss Birgit Jacob Hans Zwart Hamiltonians and Riccati Equations for Linear Systems with Unbounded Control and Observation Operators. 1518-1547 2012 50 SIAM J. Control. Optim. 3 https://doi.org/10.1137/110839199 db/journals/siamco/siamco50.html#WyssJZ12

Birgit Jacob Kirsten Morris 0001 Second-Order Systems With Acceleration Measurements. 690-700 2012 57 IEEE Trans. Autom. Control. 3 https://doi.org/10.1109/TAC.2011.2173421 db/journals/tac/tac57.html#JacobM12

Birgit Jacob Kirsten Morris 0001 Root locus for SISO infinite-dimensional systems. 1999-2003 2011 CDC/ECC https://doi.org/10.1109/CDC.2011.6160707 conf/cdc/2011 db/conf/cdc/cdc2011.html#JacobM11 Birgit Jacob Kirsten Morris 0001 Acceleration measured by micro-electrical mechanical systems. 1713-1718 2010 CDC https://doi.org/10.1109/CDC.2010.5717718 conf/cdc/2010 db/conf/cdc/cdc2010.html#JacobM10

Ruth F. Curtain Birgit Jacob Spectral properties of pseudo-resolvents under structured perturbations. 21-50 2009 21 Math. Control. Signals Syst. 1 https://doi.org/10.1007/s00498-008-0035-y db/journals/mcss/mcss21.html#CurtainJ09

Birgit Jacob Jonathan R. Partington Sandra Pott Zero-class admissibility of observation operators. 406-412 2009 58 Syst. Control. Lett. 6 https://doi.org/10.1016/j.sysconle.2009.01.009 https://www.wikidata.org/entity/Q56319265 db/journals/scl/scl58.html#JacobPP09

Birgit Jacob Hans Zwart On the Hautus Test for Exponentially Stable C0-Groups. 1275-1288 2009 48 SIAM J. Control. Optim. 3 https://doi.org/10.1137/080724733 db/journals/siamco/siamco48.html#JacobZ09

Birgit Jacob Roland Schnaubelt Observability of polynomially stable systems. 277-284 2007 56 Syst. Control. Lett. 4 https://doi.org/10.1016/j.sysconle.2006.10.006 db/journals/scl/scl56.html#JacobS07

Birgit Jacob Kirsten Morris 0001 Carsten Trunk Minimum-Phase Infinite-Dimensional Second-Order Systems. 1654-1665 2007 52 IEEE Trans. Autom. Control. 9 https://doi.org/10.1109/TAC.2007.904471 db/journals/tac/tac52.html#JacobMT07

Birgit Jacob Jonathan R. Partington On controllability of diagonal systems with one-dimensional input space. 321-328 2006 55 Syst. Control. Lett. 4 https://doi.org/10.1016/j.sysconle.2005.08.008 https://www.wikidata.org/entity/Q56319323 db/journals/scl/scl55.html#JacobP06

Birgit Jacob Kirsten Morris 0001 Minimum-Phase Infinite-Dimensional SISO Second-Order Systems. 410-415 2005 CDC/ECC https://doi.org/10.1109/CDC.2005.1582190 conf/cdc/2005 db/conf/cdc/cdc2005.html#JacobM05

Birgit Jacob Hans Zwart Counterexamples Concerning Observation Operators for C0-Semigroups. 137-153 2004 43 SIAM J. Control. Optim. 1 https://doi.org/10.1137/S0363012903423235 https://www.wikidata.org/entity/Q124899266 db/journals/siamco/siamco43.html#JacobZ04

Joseph J. Winkin Frank M. Callier Birgit Jacob Jonathan R. Partington Spectral Factorization by Symmetric Extraction for Distributed Parameter Systems. 1435-1466 2004 43 SIAM J. Control. Optim. 4 https://doi.org/10.1137/S0363012902416456 https://www.wikidata.org/entity/Q56319648 db/journals/siamco/siamco43.html#WinkinCJP04

Birgit Jacob What Is the Better Signal Space for Discrete-Time Systems: ℓ2(ℤ) or ℓ2(ℕ0)? 1521-1534 2004 43 SIAM J. Control. Optim. 4 https://doi.org/10.1137/S0363012902412471 db/journals/siamco/siamco43.html#Jacob04

Hans Zwart Birgit Jacob Olof J. Staffans Weak admissibility does not imply admissibility for analytic semigroups. 341-350 2003 48 Syst. Control. Lett. 3-4 https://doi.org/10.1016/S0167-6911(02)00277-3 db/journals/scl/scl48.html#ZwartJS03

Birgit Jacob Hans Zwart Properties of the Realization of Inner Functions. 356-379 2002 15 Math. Control. Signals Syst. 4 https://doi.org/10.1007/s004980200015 db/journals/mcss/mcss15.html#JacobZ02

Birgit Jacob Hans Zwart Exact observability of diagonal systems with a finite-dimensional output operator. 101-109 2001 43 Syst. Control. Lett. 2 https://doi.org/10.1016/S0167-6911(00)00117-1 https://www.wikidata.org/entity/Q127011549 db/journals/scl/scl43.html#JacobZ01

Birgit Jacob Jonathan R. Partington On the Boundedness and Continuity of the Spectral Factorization Mapping. 88-106 2001 40 SIAM J. Control. Optim. 1 https://doi.org/10.1137/S036301299935184X https://www.wikidata.org/entity/Q56319419 db/journals/siamco/siamco40.html#JacobP01

Birgit Jacob Linear Quadratic Optimal Control of Time-Varying Systems with Indefinite Costs on Hilbert Spaces. 196-218 1999 12 Math. Control. Signals Syst. 2 https://doi.org/10.1007/PL00009850 db/journals/mcss/mcss12.html#Jacob99

Birgit Jacob Hans Zwart Properties of therealization of inner functions. 3411-3414 1999 ECC https://doi.org/10.23919/ECC.1999.7099855 conf/eucc/1999 db/conf/eucc/eucc1999.html#JacobZ99 Mahmoud Baroun Andreas Bartel Frank M. Callier Markus Clemens Ruth F. Curtain Hendrik Elbern Bálint Farkas Andreas Frommer Najmeh Ghaderi Michael Günther 0005 Anthony Hastir René Hosfeld Karsten Kahl Julia T. Kaiser Lahcen Maniar Andrii Mironchenko Sebastian Möller 0003 Kirsten Morris 0001Kirsten A. Morris Robert Nabiullin Jonathan R. Partington Sandra Pott Timo Reis Merlin Schmitz Roland Schnaubelt Felix L. Schwenninger Nathanael Skrepek Olof J. Staffans Claudia Totzeck Carsten Trunk Marius Tucsnak Lukas A. Vorberg Joseph J. Winkin Fabian R. WirthFabian Wirth Xueran Wu Christian Wyss Ian Zwaan Hans Zwart