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Related papers: The Delta Conjecture at $q=1$

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We prove that the symmetric function $\Delta'_{e_{k-1}}e_n$ appearing in the Delta Conjecture can be obtained from the symmetric function in the Rational Shuffle Theorem by applying a Schur skewing operator. This generalizes a formula by…

Combinatorics · Mathematics 2024-08-23 Maria Gillespie , Eugene Gorsky , Sean T. Griffin

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

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 [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 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

A new representation of Dirac's delta-distribution, based on the so-called q-exponentials, has been recently conjectured. We prove here that this conjecture is indeed valid.

Mathematical Physics · Physics 2015-05-19 A. Chevreuil , A. Plastino , C. Vignat

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 (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 prove the cases q=0 and t=0 of the generalized Delta conjecture of Haglund, Remmel and Wilson involving the symmetric function $\Delta_{h_m}\Delta_{e_{n-k-1}}'e_n$. Our theorem generalizes recent results by Garsia, Haglund, Remmel and…

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

In 10.1093/imrn/rnac258, the authors conjecture a combinatorial formula for the expressions $\Xi e_\alpha \rvert_{t=1}$, known as Symmetric Theta Trees Conjecture, in terms of tiered trees with an inversion statistic. In…

Combinatorics · Mathematics 2024-07-03 Alessandra Caraceni , Alessandro Iraci

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

In the context of the shuffle theorem, many classical integer sequences appear with a natural refinement by two statistics $q$ and $t$: for example the Catalan and Schr\"oder numbers. In particular, the bigraded Hilbert series of diagonal…

Combinatorics · Mathematics 2024-03-29 Sylvie Corteel , Matthieu Josuat-Vergès , Anna Vanden Wyngaerd

In this paper, we extend the rectangular side of the shuffle conjecture by stating a rectangular analogue of the square paths conjecture. In addition, we describe a set of combinatorial objects and one statistic that are a first step…

Combinatorics · Mathematics 2023-12-07 Alessandro Iraci , Roberto Pagaria , Giovanni Paolini , Anna Vanden Wyngaerd

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 valley Delta square conjecture states that the symmetric function $\frac{[n-k]_q}{[n]_q}\Delta_{e_{n-k}}\omega(p_n)$ can be expressed as the enumerator of a certain class of decorated square paths with respect to the bistatistic…

Combinatorics · Mathematics 2024-08-21 Sylvie Corteel , Alexander Lazar , Anna Vanden Wyngaerd

A symmetry of $(t,q)$-Eulerian numbers of type $B$ is combinatorially proved by defining an involution preserving many important statistics on the set of permutation tableaux of type $B$. This involution also proves a symmetry of the…

Combinatorics · Mathematics 2015-12-18 Soojin Cho , Kyoungsuk Park

In the present paper, we investigate special generalized q-Euler numbers and polynomials. Some earlier results of T. Kim in terms of q-Euler polynomials with weight alpha can be deduced. For presentation of our formulas we apply the method…

Number Theory · Mathematics 2018-07-23 Serkan Araci , Mehmet Acikgoz , Hassan Jolany

For any Schur function $s_{\nu}$, the associated {\em delta operator} $\Delta'_{s_{\nu}}$ is a linear operator on the ring of symmetric functions which has the modified Macdonald polynomials as an eigenbasis. When $\nu = (1^{n-1})$ is a…

Combinatorics · Mathematics 2018-01-25 James Haglund , Brendon Rhoades , Mark Shimozono

A combinatorial study of multiple $q$-integrals is developed. This includes a $q$-volume of a convex polytope, which depends upon the order of $q$-integration. A multiple $q$-integral over an order polytope of a poset is interpreted as a…

Combinatorics · Mathematics 2016-08-12 Jang Soo Kim , Dennis Stanton
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