On symmetric polynomials of metabelian Lie algebras

Abstract Let $$F_n$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:math> be the free metabelian Lie algebra of rank n over a field K of characteristic zero. In this work, we provide an explicit set of generators and a presentation of generators of the algebra $$(F_n')^{S_n}=F_n^{S_n}\cap F_n'$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msubsup> <mml:mo>∩</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> </mml:mrow> </mml:math> of symmetric polynomials as a right $$K[X_n]^{S_n}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>K</mml:mi> <mml:msup> <mml:mrow> <mml:mo>[</mml:mo> <mml:msub> <mml:mi>X</mml:mi> <mml:mi>n</mml:mi> </mml:msub> <mml:mo>]</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> </mml:mrow> </mml:math> -module. Besides, we compute the Hilbert series of the K -space $$(F_n')^{S_n}.$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> <mml:mo>.</mml:mo> </mml:mrow> </mml:math>

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Publication Details

Journal
Ricerche di Matematica
Published
2026-05-21
DOI
https://doi.org/10.1007/s11587-026-01120-w
Primary Topic
Algebraic structures and combinatorial models
Type
article
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article

On symmetric polynomials of metabelian Lie algebras

Nazar Şahi̇n Öğüşlü, Şehmus Fındık, Ela Aydın
Ricerche di Matematica
Algebraic structures and combinatorial models
article

On symmetric polynomials of metabelian Lie algebras

Nazar Şahi̇n Öğüşlü, Şehmus Fındık, Ela Aydın
article en

Abstract

Abstract Let $$F_n$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:math> be the free metabelian Lie algebra of rank n over a field K of characteristic zero. In this work, we provide an explicit set of generators and a presentation of generators of the algebra $$(F_n')^{S_n}=F_n^{S_n}\cap F_n'$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msubsup> <mml:mo>∩</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> </mml:mrow> </mml:math> of symmetric polynomials as a right $$K[X_n]^{S_n}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>K</mml:mi> <mml:msup> <mml:mrow> <mml:mo>[</mml:mo> <mml:msub> <mml:mi>X</mml:mi> <mml:mi>n</mml:mi> </mml:msub> <mml:mo>]</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> </mml:mrow> </mml:math> -module. Besides, we compute the Hilbert series of the K -space $$(F_n')^{S_n}.$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>n</mml:mi> <mml:mo>′</mml:mo> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:msup> <mml:mo>.</mml:mo> </mml:mrow> </mml:math>

Ricerche di Matematica
Cukurova University (TR)
Openalex Percentile: Top 3%
Algebraic structures and combinatorial models
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