Results 31 to 40 of about 153,226 (252)

Bases for diagonally alternating harmonic polynomials of low degree

Journal of Combinatorial Theory, Series A, 2011
Given a list of $n$ cells $L=[(p_1,q_1),...,(p_n, q_n)]$ where $p_i, q_i\in \textbf{Z}_{\ge 0}$, we let $Δ_L=\det |{(p_j!)^{-1}(q_j!)^{-1} x^{p_j}_iy^{q_j}_i} |$. The space of diagonally alternating polynomials is spanned by $\{Δ_L\}$ where $L$ varies among all lists with $n$ cells.
Nantel Bergeron, Zhi Chen
openaire   +3 more sources

A Circular Polarized Rectenna with Out-of-Band Suppression for Microwave Power Transmission

International Journal of Antennas and Propagation, 2016
A novel circular polarized rectenna with out-of-band suppression is proposed in this paper. The circular polarization is realized by corner perturbation on a rectangular radiation patch and enhanced by a diagonal slim slot etched at the center of the ...
Weijun Hong, Yanjie Cao, Li Deng, Shufang Li, Mengmeng Li, Hongjie Liu   +5 more
doaj   +1 more source

Diagonal Temperley-Lieb Invariants and Harmonics

, 2004
In the context of the ring Q[x,y], of polynomials in 2n variables x=x1,...,x_n and y=y1,...,yn, we introduce the notion of diagonally quasi-symmetric polynomials. These, also called "diagonal Temperley-Lieb invariants", make possible the further introduction of the space of "diagonal Temperley-Lieb harmonics" and "diagonal Temperley-Lieb coinvariant ...
Aval, Jean-Christophe, Bergeron, F., Bergeron, N.   +2 more
openaire   +4 more sources

Triangular Diagonal Harmonics Conjectures

, 2023
The purpose of this paper is mostly to present conjectures that extend, to the ``triangular partition'' context (partitions ``under any line'' in the terminology of Blaziak-Haiman-Morse-Pun-Seelinger), properties of Frobenius of multivariate diagonal ...
Bergeron, François
core  

A conjecture of a basis for the diagonal harmonic alternants

Discrete Mathematics, 1998
AbstractLet Q[X, Y] denote the ring of polynomials with rational coefficients in the variables X = {x1, x2,…, xn} and Y = {y1, y2,…, yn}. Garsia and Haiman in A remarkable q, tCatalan and q-Lagrange inversion (see [4]) define the diagonal harmonics as the solution space DHn = {P(X,Y) ∈ Q[X,Y] : ∑i=1n ∂xih∂yikP = 0 , they define the diagonal harmonic ...
openaire   +1 more source

Vers un outil unique de connaissance

, 2022
L’Observatoire national de l’artificialisation travaille avec quelques départements pilotes sur un outil de mesure (OCS GE) qui permettra de connaître avec finesse les évolutions à l’œuvre et d’établir des comparaisons. Pascal Lory, directeur du projet "
Revue d'urbanisme Diagonal
core   +1 more source

dynoGP: Deep Gaussian Processes for Dynamic System Identification

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli, Marco Forgione, Dario Piga, Marco Zaffalon   +3 more
wiley   +1 more source

Exact diagonalization of the D-dimensional spatially confined quantum harmonic oscillator [PDF]

Kragujevac Journal of Science, 2016
In the existing literature various numerical techniques have been developed to quantize the confined harmonic oscillator in higher dimensions. In obtaining the energy eigenvalues, such methods often involve indirect approaches such as searching for the roots of hypergeometric functions or numerically solving a differential equation.
Kunle Adegoke, Olatinwo Adenike, Otobrise Henry, Funmi Akintujoye, Tiamiyu Afees   +4 more
openaire   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Absence of quantum optical coherence in high harmonic generation

Physical Review Research
The optical phase of the driving field in the process of high harmonic generation and the coherence properties of the harmonics are fundamental concepts in attosecond physics. Here, we consider driving the process by incoherent classical and nonclassical
Philipp Stammer
doaj   +1 more source