Results 11 to 20 of about 558,571 (289)
Data‐driven performance metrics for neural network learning
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri +2 more
wiley +1 more source
Unparticle physics with broken scale invariance
Physics Letters B, 2008 19 pages, 8 figures, 2 ...
V. Nefer Şenoğuz +4 more
openaire +2 more sources
SHAPE-INVARIANCE AND MANY-BODY PHYSICS [PDF]
Symmetries in Nuclear Structure, 2004 To appear in the proceedings of "Symmetries in Nuclear Structure, Ettore Majorana Centre, Erice - Sicily, Italy, March 23-29, 2003"; 10 pages of Latex ...
openaire +3 more sources
Simultaneity as an Invariant Equivalence Relation [PDF]
, 2012 This paper deals with the concept of simultaneity in classical and relativistic physics as construed in terms of group-invariant equivalence relations.
A. Einstein +13 more
core +1 more source
Automorphisms of Real 4 Dimensional Lie Algebras and the Invariant Characterization of Homogeneous 4-Spaces [PDF]
, 2002 The automorphisms of all 4-dimensional, real Lie Algebras are presented in a comprehensive way. Their action on the space of $4\times 4$, real, symmetric and positive definite, matrices, defines equivalence classes which are used for the invariant ...
A Dimakis +17 more
core +1 more source
Invariances in physics and group theory [PDF]
, 2015 Talk given at the Conference "Lie and Klein; the Erlangen program and its impact on mathematics and physics", Strasbourg, Sept ...
openaire +4 more sources
Rephasing invariance and permutation symmetry in flavor physics [PDF]
The European Physical Journal C, 2020 AbstractWith some modifications, the arguments for rephasing invariance can be used to establish permutation symmetry for the standard model. The laws of evolution of physical variables, which transform as tensors under permutation, are found to obey the symmetry, explicitly.
Kuo, T., Chiu, S.
openaire +5 more sources
A topological invariant of RG flows in 2D integrable quantum field theories [PDF]
, 1999 We construct a topological invariant of the renormalization group trajectories of a large class of 2D quantum integrable models, described by the thermodynamic Bethe ansatz approach.
Caracciolo, R., Gliozzi, F., Tateo, R.
core +2 more sources
Symmetry as a source of hidden coherent structures in quantum physics: general outlook and examples
, 1998 A general algebraic approach, incorporating both invariance groups and dynamic symmetry algebras, is developed to reveal hidden coherent structures (closed complexes and configurations) in quantum many-body physics models due to symmetries of their ...
A. B. Govorkov +33 more
core +1 more source
Testing Lorentz invariance violations in the tritium beta-decay anomaly [PDF]
, 2000 We consider a Lorentz non-invariant dispersion relation for the neutrino, which would produce unexpected effects with neutrinos of few eV, exactly where the tritium beta-decay anomaly is found.
Alfaro +15 more
core +3 more sources