Is gauge fixing of constrained systems necessary?

1998-03-01
Muslih, SI
Guler, Y
Singular systems are investigated by the canonical method and it is shown that gauge fixing, which is an essential procedure to study singular systems by Dirac's method, is not necessary. Two examples are studied.
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS

Suggestions

The Feynman path integral quantization of constrained systems
Muslih, S; Guler, Y (1997-01-01)
The Feynman path integral for constrained systems is constructed using the canonical formalism introduced by Guler. This approach is applied to a free relativistic particle and Christ-Lee model.
A study on symbol synchronization and channel estimation for m-ary orthogonal transmission
Karagözlü, Eren; Tanık, Yalçın; Department of Electrical and Electronics Engineering (2011)
In this thesis, two key issues regarding M-ary orthogonal signaling systems, namely channel estimation and symbol timing recovery are investigated. Kasami codes, which are also called quasi orthogonal codes, are used for transmission of the information in place of orthogonal waveforms. In order to achieve symbol synchronization, a timing recovery scheme based on the Maximum Likelihood (ML) estimation of timing offset is proposed and the effects of proposed structure over the receiver performance are examine...
A Control System Architecture for Control of Non-Affine in Control, Open-Loop Unstable Underactuated Systems
Marangoz, Alp; Kutay, Ali Türker (2017-07-25)
In this paper, a control system architecture for control of non-affine in control, open-loop unstable underactuated system is discussed. Passivization of the unactuated (internal) system dynamics achieved through perturbation of trajectories of the actuated states, which are calculated through adaptive dynamic inversion technique, based on Tikhonov's theorem. Performance of the controller is shown through simulation of two open-loop unstable and locally uncontrollable example problems.
A temporal neuro-fuzzy approach for time-series analysis
Şişman Yılmaz, Arzu; Alpaslan, Ferda Nur (null; 2003-09-08)
In this paper, a temporal neuro-fuzzy system is presented which provides an environment that keeps temporal rela tionships between input and output variables. The sys tem is used to forecast the future behavior of time series data. It is based on ANFIS neuro-fuzzy system and named ANFIS unfolded in time. The rule base contains tempo ral TSK(Takagi-Sugeno-Kang) fuzzy rules. In the training phase, a modified back-propagation learning algorithm is used. The model is tested on Gas-furnace data which is a benchm...
Invalid joint arrangements and actuator related singular configurations of a system of two cooperating SCARA manipulators
Ozkan, B; Özgören, Mustafa Kemal (2001-06-01)
In this study, the actuator related singular configurations (ASCs) of a system of two cooperating SCARA manipulators, are investigated. The ASC concept was First developed for planar pairs of cooperating manipulators, and it was shown that these ill-conditions could be different from the kinematic: singularities. (Ozkan B, Ozgoren MK. Torque related singular configurations of a planar system of two coodinated manipulators. In: Proceedings of International Machine Design and Production Conference, Sept. 9-11...
Citation Formats
S. Muslih and Y. Guler, “Is gauge fixing of constrained systems necessary?,” NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, pp. 277–289, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64667.