Hochschild Cohomology and Deformations of Clifford-Weyl Algebras

Autor: Ian M. Musson, Georges Pinczon, Rosane Ushirobira

Publikováno v: Symmetry, Integrability and Geometry: Methods and Applications, Vol 5, p 028 (2009)

We give a complete study of the Clifford-Weyl algebra C(n,2k) from Bose-Fermi statistics, including Hochschild cohomology (with coefficients in itself). We show that C(n,2k) is rigid when n is even or when k ≠ 1. We find all non-trivial deformation

Externí odkaz: https://doaj.org/article/5006b501c42d498c98ff97f2783edee1

On Computer Mouse Pointing Model Online Identification and Endpoint Prediction

Autor: Anatolii Khalin, Rosane Ushirobira, Denis Efimov, Gery Casiez

Publikováno v: IEEE Transactions on Human-Machine Systems
IEEE Transactions on Human-Machine Systems, IEEE, 2021
IEEE Transactions on Human-Machine Systems, 2022, 52 (5)

International audience; This paper proposes a new simplified pointing model as a feedback-based dynamical system, including both human and computer sides of the process. It takes into account the commutation between the correction and ballistic phase

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68e258037c0985b8e7e64775d8952fd0
https://doi.org/10.1109/thms.2021.3131660

Control Lyapunov function method for robust stabilization of multistable affine nonlinear systems

Autor: Nelson F. Barroso, Rosane Ushirobira, Denis Efimov

Publikováno v: International Journal of Robust and Nonlinear Control
International Journal of Robust and Nonlinear Control, 2023

International audience; In this paper, we study the problem of robust stabilization of affine nonlinear multistable systems in the presence of exogenous disturbances. The results are based on the theory of input-to-state stability (ISS) and integral

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6669b61f2b39973e83846907468d5180
https://doi.org/10.1002/rnc.6700

Synchronization of oscillators by nonlinear measurements with application to VLC

Autor: Rosane Ushirobira, Denis Efimov, Antonio Costanzo, Valeria Loscri

Publikováno v: Proc. 61th IEEE Conference on Decision and Control (CDC)
CDC 2022-61th IEEE Conference on Decision and Control
CDC 2022-61th IEEE Conference on Decision and Control, IEEE, Dec 2022, Cancun, Mexico
CDC 2022-IEEE Conference on Decision and Control
CDC 2022-IEEE Conference on Decision and Control, 2022, Cancun, Mexico

International audience; This note studies the problem of masterslave phase synchronization between two oscillators described by Andronov-Hopf equations, where pulselike signals, which disturbances can be heavily corrupt, are used for communication. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0217302d49eac566fdf5ef004301f41
https://inria.hal.science/hal-03902230/document

Applying Two Equidistant Samples-based-PLL on Unbalanced Three-Phase Signals with DC Offsets

Autor: Denis Efimov, Rosane Ushirobira, Hafiz Ahmed

Delayed signal cancellation (DSC) is a popular method to separate the fundamental frequency positive- and negative-sequence components from unbalanced three-phase signals. Conventional DSC can separate the sequence components using a quarter-cycle de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dd2c97060ec7d6cd3269e544685dd46
https://doi.org/10.36227/techrxiv.19582807.v1