Results 71 to 80 of about 18,484 (234)

New evidence on the formation conditions of the Libyan Desert Glass (Western Egypt): Clues from a dendritic zircon inclusion

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Libyan Desert Glass (LDG) is an ~29 million years old, silica‐rich glass found in Western Egypt. Whether this glass formed in an impact cratering context associated with the hypervelocity collision of a cometary/asteroidal body or radiative heating during an airburst is debated. Determination of the formation temperatures and pressures of rare
Niccolò Magnani   +6 more
wiley   +1 more source

Polynomials and Parking Functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
In a 2010 paper Haglund, Morse, and Zabrocki studied the family of polynomials $\nabla C_{p1}\dots C_{pk}1$ , where $p=(p_1,\ldots,p_k)$ is a composition, $\nabla$ is the Bergeron-Garsia Macdonald operator and the $C_\alpha$ are certain slightly modified
Angela Hicks
doaj   +1 more source

A probabilistic interpretation of the Macdonald polynomials [PDF]

open access: yes, 2010
The two-parameter Macdonald polynomials are a central object of algebraic combinatorics and representation theory. We give a Markov chain on partitions of k with eigenfunctions the coefficients of the Macdonald polynomials when expanded in the power sum ...
Diaconis, Persi, Ram, Arun
core  

Habitat‐Dependent Provisioning Patterns Are Modulated by Weather Conditions in a Rapidly Declining Farmland Raptor

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
We monitored parental food provisioning of Little Owls in four European countries with contrasting farmland structure using nestbox cameras and demonstrated that across all countries, provisioning rate and biomass increased with the area of high‐quality habitats.
S. Sangeeth Sailas   +6 more
wiley   +1 more source

c-functions and Macdonald polynomials

open access: yesJournal of Algebra
This is a paper about $c$-functions and Macdonald polynomials. There are $c$-function formulas for $E$-expansions of $P_λ$ and $A_{λ+ρ}$, principal specializations of $P_λ$ and $E_μ$, for Macdonald's constant term formulas, and for the norms of Macdonald polynomials.
Colmenarejo, Laura, Ram, Arun
openaire   +3 more sources

Haglund's conjecture for multi-t Macdonald polynomials

open access: yesDiscrete Mathematics, 2023
Title and abstract changed.
Seung Jin Lee   +2 more
openaire   +3 more sources

Return Period of Nonconcurrent Climate Compound Events: A Nonparametric Bivariate Generalized Pareto Approach

open access: yesEnvironmetrics, Volume 37, Issue 1, January 2026.
ABSTRACT Compound events (CEs), commonly defined as the “combination of multiple drivers and/or hazards that contributes to societal or environmental risk”, often result in amplified impacts compared to individual hazards. In order to estimate the return period of bivariate CEs, a novel nonparametric approach employing bivariate Generalized Pareto ...
Grégoire Jacquemin   +3 more
wiley   +1 more source

Kerov functions for composite representations and Macdonald ideal

open access: yesNuclear Physics B, 2019
Kerov functions provide an infinite-parametric deformation of the set of Schur functions, which is a far-going generalization of the 2-parametric Macdonald deformation.
A. Mironov, A. Morozov
doaj   +1 more source

Implementing a Plant Hydraulics Parameterization in the Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC) v.1.4

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 1, January 2026.
Abstract Drought conditions cause stress to terrestrial ecosystems and make their accurate representation in models challenging. The Canadian LAnd Surface Scheme Including biogeochemical Cycles (CLASSIC) employs an empirical approach to link soil moisture stress with stomatal conductance. Such approaches typically perform poorly during drought.
Muhammad Umair   +8 more
wiley   +1 more source

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