Results 21 to 30 of about 36,246,621 (297)

How to overcome the limitations of p-q Theory: Geometric Algebra Power Theory to the rescue [PDF]

open access: yes2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2020
This paper investigates the recent advances in Geometric Algebra-based power theory (GAPoT) and how this tool provides new insights to solve the flaws of one of the most widespread theory in the time domain, the Instantaneous Reactive Power theory (IRP) and its further enhancements. GAPoT can be applied to single-phase and multi-phase systems to obtain
Francisco G. Montoya   +3 more
openaire   +4 more sources

Chern-Simons theory on L(p,q) lens spaces and Gopakumar-Vafa duality

open access: yes, 2008
17 pages, 6 figures; references ...
Brini, A.   +3 more
openaire   +5 more sources

Quantum theories of (p, q)-forms [PDF]

open access: yesJournal of High Energy Physics, 2012
We describe quantum theories for massless (p,q)-forms living on Kaehler spaces. In particular we consider four different types of quantum theories: two types involve gauge symmetries and two types are simpler theories without gauge invariances. The latter can be seen as building blocks of the former.
BASTIANELLI, FIORENZO   +2 more
openaire   +2 more sources

THE DEFINABLE (P, Q)-THEOREM FOR DISTAL THEORIES [PDF]

open access: yesThe Journal of Symbolic Logic, 2017
AbstractAnswering a special case of a question of Chernikov and Simon, we show that any non-dividing formula over a model M in a distal NIP theory is a member of a consistent definable family, definable over M.
Boxall, Gareth, Kestner, Charlotte
openaire   +4 more sources

Power Transformers Differential Protection Using the p-q Power Theory [PDF]

open access: yes, 2012
This paper describes the application of the p-q power theory to the differential protection of power transformers. The information provided by the harmonic content of the differential active and reactive power components is used to detect winding insulation failures and to distinguish them from magnetizing inrush current transients.
Oliveira, L. M. R.   +1 more
openaire   +4 more sources

The invariant rings of the Sylow groups of GU(3,q2), GU(4,q2), Sp(4,q) and O+(4,q) in the natural characteristic [PDF]

open access: yes, 2016
Let G be a Sylow p -subgroup of the unitary groups GU(3,q2)GU(3,q2), GU(4,q2)GU(4,q2), the symplectic group Sp(4,q)Sp(4,q) and, for q odd, the orthogonal group O+(4,q)O+(4,q).
Fleischmann, Peter   +2 more
core   +1 more source

Limit theory and robust evaluation methods for the extremal properties of GARCH(p, q) processes

open access: yesStatistics and Computing, 2022
AbstractGeneralized autoregressive conditionally heteroskedastic (GARCH) processes are widely used for modelling financial returns, with their extremal properties being of interest for market risk management. For GARCH($$p,q$$p,q) processes with$$\max (p,q) = 1$$max(p,q)=1all extremal features have been fully characterised, but when$$\max (p,q)\ge 2 ...
Fabrizio Laurini   +2 more
openaire   +3 more sources

Time-reversibility and integrability of p : -q resonant vector fields [PDF]

open access: yes, 2023
We study the local analytical integrability in a neighborhood of p: -q resonant singular point of a two-dimensional vector field and its connection to time-reversibility with respect to the non-smooth involution ϕ(x, y) = (yp/q, xq/p).
Giné, Jaume   +3 more
core   +1 more source

Boundedness of the Hilbert transform on Besov spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
The Hilbert transform along curves is of a great importance in harmonic analysis. It is known that its boundedness on $L^p(\mathbb{R}^n)$ has been extensively studied by various authors in different contexts and the authors gave positive results for some
A. Maatoug, S.E. Allaoui
doaj   +1 more source

Three positive solutions for a nonlinear partial discrete Dirichlet problem with ( p , q ) $(p,q)$ -Laplacian operator

open access: yesBoundary Value Problems, 2022
In this paper, we prove the existence of three solutions to a partial difference equation with ( p , q ) $(p,q)$ -Laplacian operator by using critical point theory. Furthermore, based on the strong maximum principle, we prove that the three solutions are
Feng Xiong, Zhan Zhou
doaj   +1 more source

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