Results 1 to 10 of about 11,601,753 (180)

The Murnaghan―Nakayama rule for k-Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We prove a Murnaghan–Nakayama rule for k-Schur functions of Lapointe and Morse. That is, we give an explicit formula for the expansion of the product of a power sum symmetric function and a k-Schur function in terms of k-Schur functions.
Jason Bandlow   +2 more
doaj   +6 more sources

Schubert polynomials and $k$-Schur functions (Extended abstract) [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
The main purpose of this paper is to show that the multiplication of a Schubert polynomial of finite type $A$ by a Schur function can be understood from the multiplication in the space of dual $k$-Schur functions. Using earlier work by the second author,
Carolina Benedetti, Nantel Bergeron
doaj   +5 more sources

Quasisymmetric (k,l)-hook Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
We introduce a quasisymmetric generalization of Berele and Regev's hook Schur functions and prove that these new quasisymmetric hook Schur functions decompose the hook Schur functions in a natural way.
Sarah Mason, Elizabeth Niese
doaj   +3 more sources

Gap-Free Information Transfer in 4D-STEM via Fusion of Complementary Scattering Channels. [PDF]

open access: yesAdv Sci (Weinh)
Fused Full‐Field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that combines direct ptychography with tilt‐corrected dark‐field reconstruction in a single acquisition. Fourier‐space fusion using Wiener‐type spectral weighting closes the low‐frequency contrast gap inherent to bright‐field methods, delivering gap‐free, dose‐efficient, near ...
You S   +15 more
europepmc   +2 more sources

Number of standard strong marked tableaux [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
Many results involving Schur functions have analogues involving $k-$Schur functions. Standard strong marked tableaux play a role for $k-$Schur functions similar to the role standard Young tableaux play for Schur functions.
Susanna Fishel, Matjaž Konvalinka
doaj   +1 more source

A dual approach to structure constants for K-theory of Grassmannians [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
The problem of computing products of Schubert classes in the cohomology ring can be formulated as theproblem of expanding skew Schur polynomial into the basis of ordinary Schur polynomials. We reformulate theproblem of computing the structure constants
Huilan Li, Jennifer Morse, Pat Shields
doaj   +1 more source

Bilinear character correlators in superintegrable theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We continue investigating the superintegrability property of matrix models, i.e. factorization of the matrix model averages of characters. This paper focuses on the Gaussian Hermitian example, where the role of characters is played by the Schur functions.
A. Mironov, A. Morozov
doaj   +1 more source

A generalization of $(q,t)$-Catalan and nabla operators [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We introduce non-commutative analogs of $k$-Schur functions and prove that their images by the non-commutative nabla operator $\blacktriangledown$ is ribbon Schur positive, up to a global sign.
N. Bergeron, F. Descouens, M. Zabrocki
doaj   +1 more source

Refined dual stable Grothendieck polynomials and generalized Bender-Knuth involutions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
The dual stable Grothendieck polynomials are a deformation of the Schur functions, originating in the study of the K-theory of the Grassmannian. We generalize these polynomials by introducing a countable family of additional parameters such that the ...
Pavel Galashin, Darij Grinberg, Gaku Liu
doaj   +1 more source

Aggregating distributed energy resources for grid flexibility services: A distributed game theoretic approach

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract We propose a hierarchical energy management scheme for aggregating Distributed Energy Resources (DERs) for grid flexibility services. To prevent a direct participation of numerous prosumers in the wholesale electricity market, aggregators, as self‐interest agents in our scheme, incentivize prosumers to provide flexibility. We firstly model the
Xiupeng Chen   +3 more
wiley   +1 more source

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