Results 1 to 10 of about 153,226 (252)

Hopf dreams and diagonal harmonics

open access: yesJournal of the London Mathematical Society, 2022
44 pages, 29 figures; Version 4: minor changes for final ...
Vincent Pilaud   +2 more
exaly   +9 more sources

Hyperplane Arrangements and Diagonal Harmonics [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
In 2003, Haglund's bounce statistic gave the first combinatorial interpretation of the q,t-Catalan numbers and the Hilbert series of diagonal harmonics. In this paper we propose a new combinatorial interpretation in terms of the affine Weyl group of type
Drew Armstrong
doaj   +5 more sources

Higher trivariate diagonal harmonics via generalized Tamari posets [PDF]

open access: yesElectronic Journal of Combinatorics, 2012
We consider the graded $§_n$-modules of higher diagonally harmonic polynomials in three sets of variables (the trivariate case), and show that they have interesting ties with generalizations of the Tamari poset and parking functions. In particular we get several nice formulas for the associated Hilbert series and graded Frobenius characteristic.
François Bergeron
exaly   +3 more sources

Harmonic Aggregation Entropy: A Highly Discriminative Harmonic Feature Estimator for Time Series [PDF]

open access: yesEntropy
Harmonics are a common phenomenon widely present in power systems. The presence of harmonics not only increases the energy consumption of equipment but also poses hidden risks to the safety and stealth performance of large ships. Thus, there is an urgent
Ye Wang   +5 more
doaj   +2 more sources

Triangular Diagonal Harmonics Conjectures

open access: yesExperimental Mathematics
18 pages, 3 ...
François Bergeron
exaly   +4 more sources

A conjectured combinatorial formula for the Hilbert series for diagonal harmonics

open access: yesDiscrete Mathematics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
J Haglund
exaly   +3 more sources

Combinatorics of Tesler matrices in the theory of parking functions and diagonal harmonics [PDF]

open access: yesElectronic Journal of Combinatorics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
J Haglund
exaly   +3 more sources

Direct diagonalization method for a few particles trapped in harmonic potentials [PDF]

open access: yesPhysical Review A, 2022
We describe a procedure to systematically improve direct diagonalization results for few-particle systems trapped in one-dimensional harmonic potentials interacting by contact interactions. We start from the two-body problem to define a renormalization method for the interparticle interactions.
Abel Rojo-Francàs   +2 more
openaire   +2 more sources

Disorder-induced effects in high-harmonic generation process in fullerene molecules

open access: yesResults in Physics, 2023
The objective of this article is to investigate the profound nonlinear optical response exhibited by inversion symmetric fullerene molecules under the influence of different types of disorders described by the Anderson model.
H.K. Avetissian   +3 more
doaj   +1 more source

Special Cases of the Parking Functions Conjecture and Upper-Triangular Matrices [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We examine the $q=1$ and $t=0$ special cases of the parking functions conjecture. The parking functions conjecture states that the Hilbert series for the space of diagonal harmonics is equal to the bivariate generating function of $area$ and $dinv$ over ...
Paul Levande
doaj   +1 more source

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