Tomomichi Hagiwara

ORCID

Publication Activity (10 Years)

Years Active: 1995-2024
Publications (10 Years): 50

Top Venues

CDC

IEEE Trans. Autom. Control.

ECC

IEEE Control. Syst. Lett.

Publications

Ryosuke Shiga, Tomomichi Hagiwara, Yoshio Ebihara
Internal/External Positivity of Sampled-Data Systems: Definitions and the Necessary and Sufficient Conditions. IEEE Access 12 (2024)
Gyunghoon Park, Hyungbo Shim, Tomomichi Hagiwara
On Existence of Uniformly Marginally Stable Zeros of Linear Sampled-Data Systems and Its Application to Stable Inversion-Based Control. IEEE Access 12 (2024)
Yohei Hosoe, Yuki Michitani, Dimitri Peaucelle, Tomomichi Hagiwara
Stochastic Gain-Scheduled Control of Discrete-Time Systems Characterized by Random Polytopes. IEEE Control. Syst. Lett. 8 (2024)
Dohyeok Kwak, Jung Hoon Kim, Tomomichi Hagiwara
A New Quasi-Finite-Rank Approximation of Compression Operators with Application to the $\mathcal{L}_{1}$ Discretization for Sampled-Data Systems. CDC (2023)
Tomomichi Hagiwara, Hiroki Hara
Quasi $L_{2}/L_{2}$ Hankel Norms and $L_{2}/L_{2}$ Hankel Norm/Operator of Sampled-Data Systems. IEEE Trans. Autom. Control. 68 (7) (2023)
Dohyeok Kwak, Jung Hoon Kim, Tomomichi Hagiwara
Robust Stability Analysis of Sampled-Data Systems With Uncertainties Characterized by the ${\mathcal {L}}_\infty$-Induced Norm: Gridding Treatment With Convergence Rate Analysis. IEEE Trans. Autom. Control. 68 (12) (2023)
Tomomichi Hagiwara, Taichi Yuyama, Jung Hoon Kim
L∞/ L2 Hankel Norm Analysis and Characterization of Critical Instants for Continuous-Time Linear Periodically Time-Varying Systems. CDC (2023)
Tomoya Kitahiro, Yohei Hosoe, Tomomichi Hagiwara
Robust Control of Discrete-Time Systems With Coefficient Matrices Given by Polytopic Martingales. IEEE Control. Syst. Lett. 7 (2023)
Hiroshi Okajima, Yohei Hosoe, Tomomichi Hagiwara
-Induced Norm. IEEE Access 11 (2023)
Dohyeok Kwak, Jung-Hoon Kim, Tomomichi Hagiwara
Generalized framework for computing the L∞-induced norm of sampled-data systems. Appl. Math. Comput. 437 (2023)
Yohei Hosoe, Takashi Okamoto, Tomomichi Hagiwara
H₂ Performance Analysis and Synthesis for Discrete-Time Linear Systems With Dynamics Determined by an i.i.d. Process. IEEE Control. Syst. Lett. 7 (2023)
Yohei Hosoe, Tomomichi Hagiwara
On Second-Moment Stability of Discrete-Time Linear Systems With General Stochastic Dynamics. IEEE Trans. Autom. Control. 67 (2) (2022)
Yohei Hosoe, Takashi Okamoto, Tomomichi Hagiwara
H2 Performance Analysis and Synthesis for Discrete-Time Linear Systems with Dynamics Determined by an i.i.d. Process. CoRR (2022)
Jung-Hoon Kim, Tomomichi Hagiwara
The generalized H2 controller synthesis problem of sampled-data systems. Autom. 142 (2022)
Jung Hoon Kim, Yong Woo Choi, Tomomichi Hagiwara
Computing the L∞-Induced Norm of LTI Systems: Generalization of Piecewise Quadratic and Cubic Approximations. IEEE Access 8 (2020)
Yohei Hosoe, Dimitri Peaucelle, Tomomichi Hagiwara
Linearization of expectation-based inequality conditions in control for discrete-time linear systems represented with random polytopes. Autom. 122 (2020)
Teruki Kato, Yoshio Ebihara, Tomomichi Hagiwara
Analysis of Positive Systems Using Copositive Programming. IEEE Control. Syst. Lett. 4 (2) (2020)
Yohei Hosoe, Tomomichi Hagiwara
On Second-Moment Stability of Discrete-Time Linear Systems with General Stochastic Dynamics. CoRR (2019)
Yohei Hosoe, Tomomichi Hagiwara
Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems with Stochastic Dynamics Determined by an i.i.d. Process. CoRR (2019)
Yohei Hosoe, Tomomichi Hagiwara
Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d. Process. IEEE Trans. Autom. Control. 64 (11) (2019)
Jung Hoon Kim, Tomomichi Hagiwara
Generalized Framework for Gridding Approximation Approach to Yet Another H 2 Norm of Sampled-Data Systems. CDC (2019)
Jung Hoon Kim, Tomomichi Hagiwara
Generalization of Piecewise Constant Approximation in the L∞/L2 Optimal Control of Sampled-Data Systems. ECC (2019)
Hiroshi Okajima, Yohei Hosoe, Tomomichi Hagiwara, Yuki Minami
Basic Idea of Periodically Time-Varying Dynamic Quantizer in Networked Control Systems. SICE (2019)
Yuji Nagira, Yohei Hosoe, Tomomichi Hagiwara
Causality of general input-output systems and extended small-gain theorem for their feedback connection. Eur. J. Control 50 (2019)
Hiroki Hara, Tomomichi Hagiwara
Properties of the Quasi L2/L2 Hankel Norms and the L2/L2 Hankel Operator of Sampled-Data Systems. ECC (2019)
Jung Hoon Kim, Tomomichi Hagiwara
Norm of the Response to the Worst-Timing Impulse Disturbance in LTI Sampled-Data Systems. CDC (2018)
Yuji Nagira, Yohei Hosoe, Tomomichi Hagiwara
The lp Induced Norm and the Small-Gain Theorem for Discrete-time Stochastic Systems. ECC (2018)
Yuji Nagira, Yohei Hosoe, Tomomichi Hagiwara
On Stability Analysis Based on Stochastic D-Scaling. CDC (2018)
Yohei Hosoe, Tomomichi Hagiwara, Dimitri Peaucelle
Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes. IEEE Trans. Autom. Control. 63 (2) (2018)
Tomomichi Hagiwara, Akira Inai, Jung Hoon Kim
Hankel Operator/ Norm of Sampled-Data Systems. SIAM J. Control. Optim. 56 (5) (2018)
Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara
Modified state predictive control of continuous-time systems with input delay. ICIT (2017)
Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara
Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling. Int. J. Control 90 (7) (2017)
Jung Hoon Kim, Tomomichi Hagiwara
A discretization approach to the analysis of yet another H2 norm of LTI sampled-data systems. CDC (2017)
Jung Hoon Kim, Tomomichi Hagiwara
norms in sampled-data systems with convergence rate analysis and discretization viewpoint. Syst. Control. Lett. 107 (2017)
Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara
Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators. Int. J. Control 90 (7) (2017)
Jung Hoon Kim, Tomomichi Hagiwara
Extensive theoretical/numerical comparative studies on H2 and generalised H2 norms in sampled-data systems. Int. J. Control 90 (11) (2017)
Jung Hoon Kim, Tomomichi Hagiwara
analysis of sampled-data systems via kernel approximation approach. Int. J. Control 89 (8) (2016)
Jung Hoon Kim, Tomomichi Hagiwara
A study on discretization approach to the L∞/L2 optimal controller synthesis problem in sampled-data systems. CDC (2016)
Yoshio Ebihara, Shogo Shintani, Tomomichi Hagiwara
Dual LMI approach to H∞ performance limitations analysis of SISO systems with multiple unstable zeros and poles. ACC (2016)
Tomomichi Hagiwara, Akira Inai, Jung Hoon Kim
The L∞=L2 Hankel norm of sampled-data systems. CDC (2016)
Jung Hoon Kim, Tomomichi Hagiwara
Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation. IEEE Trans. Autom. Control. 61 (5) (2016)
Yohei Hosoe, Yuji Nagira, Tomomichi Hagiwara
Random polytope representation of discrete-time uncertain stochastic switched systems and robust stabilization. ECC (2016)
Jung Hoon Kim, Tomomichi Hagiwara
Computation of the induced norm from L2 to L∞ in SISO sampled-data systems: Discretization approach with convergence rate analysis. CDC (2015)
Jung Hoon Kim, Tomomichi Hagiwara
-induced norm analysis of sampled-data systems via piecewise constant and linear approximations. Autom. 51 (2015)
Jung Hoon Kim, Tomomichi Hagiwara, Kentaro Hirata
Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis. IEEE Trans. Autom. Control. 60 (12) (2015)
Yuji Nagira, Yohei Hosoe, Tomomichi Hagiwara
Gain-scheduled state feedback synthesis for systems characterized by random polytopes. CDC (2015)
Yong Woo Choi, Jung Hoon Kim, Tomomichi Hagiwara
L1 analysis of LTI systems via piecewise higher-order approximation. CCA (2015)
Jung Hoon Kim, Tomomichi Hagiwara
Kernel approximation approach to the L1 analysis of sampled-data systems. ECC (2015)
Yohei Hosoe, Tomomichi Hagiwara
Extension of the concept of random polytopes and robust stabilization synthesis. ECC (2015)
Jung Hoon Kim, Tomomichi Hagiwara
Induced norm from L2 to L∞ in SISO sampled-data systems. ACC (2015)
Jung Hoon Kim, Tomomichi Hagiwara
Computing the L∞-induced norm of LTI systems. CDC (2014)
Yohei Hosoe, Tomomichi Hagiwara
State feedback synthesis for robust stabilization of discrete-time linear systems characterized by stochastic polytopes. ECC (2014)
Yohei Hosoe, Tomomichi Hagiwara
Robust stability analysis of discrete-time linear systems characterized by stochastic polytopes. ACC (2014)
Jung Hoon Kim, Tomomichi Hagiwara
[0, h)-induced norm of a compression operator via fast-lifting. Syst. Control. Lett. 67 (2014)
Tatsuya Yamazaki, Tomomichi Hagiwara
Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays. Int. J. Syst. Sci. 45 (8) (2014)
Yohei Hosoe, Tomomichi Hagiwara
Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework. Autom. 49 (5) (2013)
Jung Hoon Kim, Tomomichi Hagiwara
L1 analysis of sampled-data systems via fast-lifting and piecewise linear approximation. CDC (2013)
Tatsuya Yamazaki, Tomomichi Hagiwara
A note on representation of nonlinear time-varying delay-differential equations as time-delay feedback systems. ASCC (2013)
Jung Hoon Kim, Tomomichi Hagiwara, Kentaro Hirata
A study on the spectrum of monodromy operator for a time-delay system. ASCC (2013)
Kei Katayama, Yohei Hosoe, Tomomichi Hagiwara
Demonstrating the Effectiveness of Noncausal LPTV Scaling through Control Experiments with Cart Inverted Pendulum. PSYCO (2013)
Yuki Saito, Tomomichi Hagiwara
Stability analysis of time-delay systems based on a power of the monodromy operator. ECC (2013)
Jung Hoon Kim, Tomomichi Hagiwara
Computing the L∞[0, h)-induced norm of a compression operator. ECC (2013)
Yohei Hosoe, Tomomichi Hagiwara
Robust stability analysis based on noncausal LPTV FIR scaling: Explicit procedure and relationship with causal LTI FIR scaling. CDC (2012)
Yohei Hosoe, Tomomichi Hagiwara
Robust stability analysis based on discrete-time FIR scaling. ACC (2012)
Tomomichi Hagiwara, Masahiro Kobayashi
Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems. Int. J. Control 84 (6) (2011)
Yoshio Ebihara, Jun Yamaguchi, Tomomichi Hagiwara
control of discrete-time systems and analysis of achievable performance. Syst. Control. Lett. 60 (9) (2011)
Tomomichi Hagiwara, Kentaro Hirata
Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems. Eur. J. Control 17 (2) (2011)
Yohei Hosoe, Tomomichi Hagiwara
Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing. Int. J. Control 84 (6) (2011)
Yohei Hosoe, Tomomichi Hagiwara
Infinite matrix representations of robust stability conditions for discrete-time systems. CDC/ECC (2011)
Tomomichi Hagiwara
A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems. AuCC (2011)
Tomomichi Hagiwara
Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting. Int. J. Syst. Sci. 42 (8) (2011)
Yohei Hosoe, Tomomichi Hagiwara
Synthesis of robust performance controllers based on discrete-time noncausal linear periodically time-varying scaling. PSYCO (2010)
Tomomichi Hagiwara, Kenichi Morioka, Koichiro Okada
Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems. Int. J. Control 83 (11) (2010)
Yoshio Ebihara, Yusuke Matsuda, Tomomichi Hagiwara
Asymptotic exactness of dual LMI approach for robust performance analysis of uncertain LTI systems. CDC (2010)
Tomomichi Hagiwara, Yasuhiro Ohara
Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators. Autom. 46 (1) (2010)
Yoshio Ebihara, Yuki Kuboyama, Tomomichi Hagiwara, Dimitri Peaucelle, Denis Arzelier
Further results on periodically time-varying memory state-feedback controller synthesis for discrete-time linear systems. CDC (2009)
Tomomichi Hagiwara, Koichiro Okada
-discretisation for general sampled-data systems by fast-lifting. Int. J. Control 82 (9) (2009)
Tomomichi Hagiwara
Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling. Autom. 45 (8) (2009)
Yusuke Matsuda, Yoshio Ebihara, Tomomichi Hagiwara
Constructing a sequence of relaxation problems for robustness analysis of uncertain LTI systems via dual LMIs. CDC (2009)
Tomomichi Hagiwara, Kentaro Hirata
Fast-lifting approach to the computation of the spectrum of retarded time-delay systems. ECC (2009)
Yoshio Ebihara, Yusuke Onishi, Tomomichi Hagiwara
Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness. IEEE Trans. Autom. Control. 54 (5) (2009)
Yoshio Ebihara, Katsutoshi Maeda, Tomomichi Hagiwara
-Procedure for Inequality Conditions on One-Vector-Lossless Sets and Linear System Analysis. SIAM J. Control. Optim. 47 (3) (2008)
Tomomichi Hagiwara
Fast-lifting approach to time-delay systems: Fundamental framework. CDC (2008)
Tomomichi Hagiwara, Ryouta Mori
Linear periodically time-varying scaling and its properties. Syst. Control. Lett. 57 (10) (2008)
Tomomichi Hagiwara, Hiroaki Umeda
Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis. Eur. J. Control 14 (4) (2008)
Tomomichi Hagiwara, Koichiro Okada
γ-Independent H∞-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting. ACC (2008)
Tomomichi Hagiwara, Kazuhiro Horiguchi
An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties. Int. J. Control 80 (9) (2007)
Yoshio Ebihara, Yusuke Onishi, Tomomichi Hagiwara
Robust performance analysis of uncertain LTI systems: Dual LMI approach and verifications for exactness. CDC (2007)
Tomomichi Hagiwara, Hiroaki Umeda
Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis. CDC (2007)
Tomomichi Hagiwara, Yasuhiro Ohara
Noncausal linear periodically time-varying scaling for discrete-time systems. PSYCO (2007)
Yoshio Ebihara, Tomomichi Hagiwara
Further Results on Computing the Distance to Uncontrollability via LMIs. ACC (2007)
Tomomichi Hagiwara
Discussion on: "Transfer Functions and Statistical Analysis of FDLCP Systems Described by Higher-order Differential Equations". Eur. J. Control 12 (5) (2006)
Yoshio Ebihara, Tomomichi Hagiwara
On the degree of polynomial parameter-dependent Lyapunov functions for robust stability of single parameter-dependent LTI systems: A counter-example to Barmish's conjecture. Autom. 42 (9) (2006)
Tomomichi Hagiwara, Ryouta Mori
Robust stability analysis of sampled-data systems via periodically time-varying scaling. ACC (2006)
Yoshio Ebihara, Yoshimichi Ito, Tomomichi Hagiwara
Exact Stability Analysis of 2-D Systems Using LMIs. IEEE Trans. Autom. Control. 51 (9) (2006)
Tomomichi Hagiwara, Hiroaki Umeda, Masashi Sawada
Discretization of Continuous-Time Controllers Based on the Hilbert-Schmidt Norm of the Sampled-Data Frequency Response. CDC (2006)
Yoshio Ebihara, Tomomichi Hagiwara
Computing the Distance to Uncontrollability via LMIs: Lower and Upper Bounds Computation and Exactness Verification. CDC (2006)
Jun Zhou, Tomomichi Hagiwara
2-Regularized Nyquist Criterion in Linear Continuous-Time Periodic Systems and Its Implementation. SIAM J. Control. Optim. 44 (2) (2005)
Yoshio Ebihara, Tomomichi Hagiwara, Dimitri Peaucelle, Denis Arzelier
Robust Performance Analysis of Linear Time-Invariant Uncertain Systems by Taking Higher-Order Time-Derivatives of the State. CDC/ECC (2005)
Tomomichi Hagiwara
A Study on the Spectrum of the Sampled-Data Transfer Operator with Application to Robust Exponential Stability Problems. SIAM J. Control. Optim. 44 (1) (2005)

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Publication Activity (10 Years)

Top Topics

Top Venues

Tomomichi Hagiwara