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Related papers: On conjectural fermionic formulas for the Macdonal…

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We propose a new fermionic sum formula for the Macdonald index of a class of Argyres-Douglas theories. The formula arises naturally from a three-dimensional topological field theory obtained via a twisted dimensional reduction of the 4d…

High Energy Physics - Theory · Physics 2025-12-30 Heeyeon Kim , Hongseok Kim , Jaewon Song

We interpret aspects of the Schur indices, that were identified with characters of highest weight modules in Virasoro $(p,p')=(2,2k+3)$ minimal models for $k=1,2,\dots$, in terms of paths that first appeared in exact solutions in…

High Energy Physics - Theory · Physics 2020-06-30 Omar Foda , Rui-Dong Zhu

We conjecture closed-form expressions for the Macdonald limits of the superconformal indices of the (A_1, A_{2n-3}) and (A_1, D_{2n}) Argyres-Douglas (AD) theories in terms of certain simple deformations of Macdonald polynomials. As checks…

High Energy Physics - Theory · Physics 2016-03-23 Matthew Buican , Takahiro Nishinaka

In the previous author's paper the Macdonald norm conjecture (including the famous constant term conjecture) was proved. This paper contains the proof of the remaining two (the duality and evaluation conjectures). The evaluation theorem is…

q-alg · Mathematics 2009-10-28 Ivan Cherednik

In this paper, we relate the MacDonald index of a 4d $\mathcal{N}=2$ SCFT with the Hilbert series of the arc space of the Zhu algebra of the corresponding Schur VOA. Using this, we conjecture a simple formula for the MacDonald index of…

High Energy Physics - Theory · Physics 2025-07-10 George Andrews , Anindya Banerjee , Chinmaya Bhargava , Ranveer Kumar Singh , Runkai Tao

Duality relations are explicitly established relating the Hamiltonians and basis classification schemes associated with the number-conserving unitary and number-nonconserving quasispin algebras for the two-level system with pairing…

Quantum Physics · Physics 2012-03-23 M. A. Caprio , J. H. Skrabacz , F. Iachello

We study the Schur index, the Zhu's $C_2$ algebra, and the Macdonald index of a four dimensional $\mathcal{N}=2$ Argyres-Douglas (AD) theories from the structure of the associated two dimensional $W$-algebra. The Schur index is derived from…

High Energy Physics - Theory · Physics 2021-03-31 Dan Xie , Wenbin Yan

This paper contains the proof of Macdonald's duality and evaluation conjectures, the definition of the difference Fourier transform, the recurrence theorem generalizing Pieri rules, and the action of GL(2,Z) on the Macdonald polynomials at…

q-alg · Mathematics 2009-10-28 Ivan Cherednik

For any 4d N=2 SCFT, there is a subsector described by a 2d chiral algebra. The vacuum character of the chiral algebra reproduces the Schur index of the corresponding 4d theory. The Macdonald index counts the same set of operators as the…

High Energy Physics - Theory · Physics 2017-09-13 Jaewon Song

In this paper it is shown that the one-dimensional configuration sums of the solvable lattice models of Andrews, Baxter and Forrester and the string functions associated with admissible representations of the affine Lie algebra A$_1^{(1)}$…

Quantum Algebra · Mathematics 2007-05-23 Anne Schilling , S. Ole Warnaar

We prove a generalization of the Verlinde formula to fermionic rational conformal field theories. The fusion coefficients of the fermionic theory are equal to sums of fusion coefficients of its bosonic projection. In particular, fusion…

High Energy Physics - Theory · Physics 2009-10-22 Wolfgang Eholzer , Ralf Hübel

We study the N=2 four-dimensional superconformal index in various interesting limits, such that only states annihilated by more than one supercharge contribute. Extrapolating from the SU(2) generalized quivers, which have a Lagrangian…

High Energy Physics - Theory · Physics 2015-03-19 Abhijit Gadde , Leonardo Rastelli , Shlomo S. Razamat , Wenbin Yan

A generalization of the Macdonald polynomials depending upon both commuting and anticommuting variables has been introduced recently. The construction relies on certain orthogonality and triangularity relations. Although many…

Mathematical Physics · Physics 2013-07-04 O. Blondeau-Fournier , P. Desrosiers , L. Lapointe , P. Mathieu

A string theoretic derivation is given for the conjecture of Hausel, Letellier, and Rodriguez-Villegas on the cohomology of character varieties with marked points. Their formula is identified with a refined BPS expansion in the stable pair…

High Energy Physics - Theory · Physics 2015-06-17 Wu-yen Chuang , Duiliu-Emanuel Diaconescu , Ron Donagi , Tony Pantev

We develop a first and second fundamental theorem for $n$--tuples of bosonic and fermionic matrices, by developing graded analogues of the classical case.

Rings and Algebras · Mathematics 2026-05-22 Claudio Procesi

We present conjectures giving formulas for the Macdonald polynomials of type B, C, D which are indexed by a multiple of the first fundamental weight. The transition matrices between two different types are explicitly given.

Combinatorics · Mathematics 2008-03-05 Michel Lassalle

An overview of the basic results on Macdonald(-Koornwinder) polynomials and double affine Hecke algebras is given. We develop the theory in such a way that it naturally encompasses all known cases. Among the basic properties of the…

Quantum Algebra · Mathematics 2012-08-30 Jasper V. Stokman

We give a short proof of the inner product conjecture for the symmetric Macdonald polynomials of type $A_{n-1}$. As a special case, the corresponding constant term conjecture is also proved.

q-alg · Mathematics 2008-02-03 Katsuhisa Mimachi

The $SL(2,\mathbb Z)$-symmetry of Cherednik's spherical double affine Hecke algebras in Macdonald theory includes a distinguished generator which acts as a discrete time evolution of Macdonald operators, which can also be interpreted as a…

Quantum Algebra · Mathematics 2023-09-18 Philippe Di Francesco , Rinat Kedem

We prove polynomial identities for the N=1 superconformal model SM(2,4\nu) which generalize and extend the known Fermi/Bose character identities. Our proof uses the q-trinomial coefficients of Andrews and Baxter on the bosonic side and a…

High Energy Physics - Theory · Physics 2009-10-28 Alexander Berkovich , Barry M. McCoy , William P. Orrick
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