Tomomichi HAGIWARA, Dr. Eng.
Research Fields
Sampled-Data Control and Digital Control
- Multirate sampled-data systems
- Properties of discretized systems
- Operator-theoretic analysis and synthesis of
sampled-data systems in the frequency domain
- Analysis and synthesis of sampled-data systems
via noncausal LPTV (linear periodically time-varying)
scaling
Time-Delay Systems
- Operator Lyapunov inequalities and their exact discretization
- Discretization of monodromy operators
Two-Degree-of-Freedom Optimal Robust Servo Systems
- Two-degree-of-freedom design of robust servo systems
- Disturbance rejection and optimal observers
- Two-degree-of-freedom state-predictive control
Dynamical System Theory
- Structure of linear time-invariant systems
- Stability of nonlinear feedback systems
- Computational aspects in the control system analysis
and synthesis
[Partial/Selected] List of Recent Publications in Journals
Written Books (in Japanese)
Courses that I teach (in AY2026)
- Graduate
Design of Control Systems
Undergraduate
Digital Control
Theory of Complex Functions
More
- Co-author of DiaGraph (with Mr. Akito Toyoda)
DiaGraph is
a language/program for drawing control-system block diagrams;
it generates the files of block diagrams in the picture
environment format of LaTeX.
(Manual in PS,
Manual in PDF,
Source File,
(Slightly OLD) Binaries)
Email: 
Address: Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
last revised April, 2026
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