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Related papers: A module for the Delta conjecture

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The Shuffle Theorem of Carlsson and Mellit gives a combinatorial expression for the bigraded Frobenius characteristic of the ring of diagonal harmonics, and the Delta Conjecture of Haglund, Remmel and the second author provides two…

Combinatorics · Mathematics 2025-03-28 Dun Qiu , Andrew Timothy Wilson

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…

Combinatorics · Mathematics 2023-03-07 François Bergeron

In \cite{HRW15}, Haglund, Remmel, Wilson state a conjecture which predicts a purely combinatorial way of obtaining the symmetric function $\Delta_{e_k}e_n$. It is called the Delta Conjecture. It was recently proved in \cite{GHRY} that the…

Combinatorics · Mathematics 2018-01-24 Adriano Garsia , Jeffrey Liese , Jeffrey B. Remmel , Meesue Yoo

We prove the Extended Delta Conjecture of Haglund, Remmel, and Wilson, a combinatorial formula for $\Delta _{h_l}\Delta' _{e_k} e_{n}$, where $\Delta' _{e_k}$ and $\Delta_{h_l}$ are Macdonald eigenoperators and $e_n$ is an elementary…

Combinatorics · Mathematics 2021-08-31 Jonah Blasiak , Mark Haiman , Jennifer Morse , Anna Pun , George H. Seelinger

In (Haglund, Remmel, Wilson 2018) Haglund, Remmel and Wilson introduced their Delta conjectures, which give two different combinatorial interpretations of the symmetric function $\Delta'_{e_{n-k-1}} e_n$ in terms of rise-decorated or…

Combinatorics · Mathematics 2023-10-30 Michele D'Adderio , Alessandro Iraci

We conjecture two combinatorial interpretations for the symmetric function $\Delta_{e_k} e_n$, where $\Delta_f$ is an eigenoperator for the modified Macdonald polynomials defined by Bergeron, Garsia, Haiman, and Tesler. Both interpretations…

Combinatorics · Mathematics 2017-09-07 James Haglund , Jeffrey Remmel , Andrew Timothy Wilson

We provide a combinatorial interpretation of the symmetric function $\left.\Theta_{e_k}\Theta_{e_l}\nabla e_{n-k-l}\right|_{t=0}$ in terms of segmented Smirnov words. The motivation for this work is the study of a diagonal coinvariant ring…

Combinatorics · Mathematics 2024-01-12 Alessandro Iraci , Philippe Nadeau , Anna Vanden Wyngaerd

Let R_n be the ring of coinvariants for the diagonal action of the symmetric group S_n. It is known that the character of R_n as a doubly-graded S_n module can be expressed using the Frobenius characteristic map as \nabla e_n, where e_n is…

Combinatorics · Mathematics 2007-05-23 J. Haglund , M. Haiman , N. Loehr , J. B. Remmel , A. Ulyanov

In 2009, J. Wood proved that Frobenius bimodules have the extension property for symmetrized weight compositions. More generally, it was later shown that having a cyclic socle is sufficient for satisfying the property, while the necessity…

Rings and Algebras · Mathematics 2020-10-19 Ali Assem Mahmoud

We introduce the family of Theta operators $\Theta_f$ indexed by symmetric functions $f$ that allow us to conjecture a compositional refinement of the Delta conjecture of Haglund, Remmel and Wilson for $\Delta_{e_{n-k-1}}'e_n$. We show that…

Combinatorics · Mathematics 2022-06-06 Michele D'Adderio , Alessandro Iraci , Anna Vanden Wyngaerd

The Delta Conjecture of Haglund, Remmel, and Wilson is a recent generalization of the Shuffle Conjecture in the field of diagonal harmonics. In this paper we give evidence for the Delta Conjecture by proving a pair of conjectures of Wilson…

Combinatorics · Mathematics 2016-06-29 Brendon Rhoades

We prove a compositional refinement of the Delta conjecture (rise version) of Haglund, Remmel and Wilson (2018) for $\Delta_{e_{n-k-1}}'e_n$ which was stated by D'Adderio, Iraci and Vanden Wyngaerd (2020) in terms of Theta operators.

Combinatorics · Mathematics 2020-11-24 Michele D'Adderio , Anton Mellit

In 2009, J. Wood [15] proved that Frobenius bimodules have the extension property for symmetrized weight compositions. Later, in [9], it was proved that having a cyclic socle is sufficient for satisfying the property, while the necessity…

Rings and Algebras · Mathematics 2015-05-05 Ali Assem

We conjecture a formula for the symmetric function $\frac{[n-k]_t}{[n]_t}\Delta_{h_m}\Delta_{e_{n-k}}\omega(p_n)$ in terms of decorated partially labelled square paths. This can be seen as a generalization of the square conjecture of Loehr…

Combinatorics · Mathematics 2022-06-06 Michele D'Adderio , Alessandro Iraci , Anna Vanden Wyngaerd

In this paper we study codes where the alphabet is a finite Frobenius bimodule over a finite ring. We discuss the extension property for various weight functions. Employing an entirely character-theoretic approach and a duality theory for…

Information Theory · Computer Science 2016-11-14 Heide Gluesing-Luerssen , Tefjol Pllaha

The shuffle conjecture of Haglund et al. expresses the symmetric function $\nabla e_n$ as a sum over labeled Dyck paths. Here $\nabla$ is an operator on symmetric functions defined in terms of its diagonal action on the basis of modified…

Combinatorics · Mathematics 2025-09-30 Jonah Blasiak , Mark Haiman , Jennifer Morse , Anna Pun , George H. Seelinger

In [The Delta Conjecture, Trans. Amer. Math. Soc., to appear] Haglund, Remmel, Wilson introduce a conjecture which gives a combinatorial prediction for the result of applying a certain operator to an elementary symmetric function. This…

Combinatorics · Mathematics 2017-10-20 Adriano Garsia , Jim Haglund , Jeffrey B. Remmel , Meesue Yoo

We discuss the combinatorics of decorated Dyck paths and decorated parallelogram polyominoes, extending to the decorated case the main results of both [Haglund 2004] and [Aval et al. 2014]. This settles in particular the cases…

Combinatorics · Mathematics 2022-06-02 Michele D'Adderio , Alessandro Iraci , Anna Vanden Wyngaerd

We prove that $\omega \Delta'_{e_{k}}e_n|_{t=0}$, the symmetric function in the Delta Conjecture at $t=0$, is a skewing operator applied to a Hall-Littlewood polynomial, and generalize this formula to the Frobenius series of all…

Combinatorics · Mathematics 2023-07-31 Maria Gillespie , Sean T. Griffin

The paper [GLZ] "L-functions of Carlitz modules, resultantal varieties and rooted binary trees" is devoted to a description of some resultantal varieties related to L-functions of Carlitz modules. It contains a conjecture that some of these…

Number Theory · Mathematics 2025-01-20 Stefan Ehbauer , Aleksandr Grishkov , Dmitry Logachev
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