The evaluation formula conjecture for Macdonald superpolynomials

Let F(x,θ)F(x,\theta) be a polynomial in superspace of fermionic degree mm, let NmN\ge m, and define

EN,m[F(x,θ)]=[θmθ1F(x,θ)Δ(x1,,xm)]xi=ui,\mathsf E_{N,m}[F(x,\theta)]=\left[\frac{\partial_{\theta_m}\cdots\partial_{\theta_1}F(x,\theta)}{\Delta(x_1,\ldots,x_m)}\right]_{x_i=u_i},

where ui=ti1/qmax(mi,0)u_i=t^{i-1}/q^{\max(m-i,0)} and Δ(x1,,xm)=1i<jm(xixj)\Delta(x_1,\ldots,x_m)=\prod_{1\le i<j\le m}(x_i-x_j). Let SΛ\mathcal S\Lambda, FΛ\mathcal F\Lambda, dF(Λ)d^{\mathcal F}(\Lambda), hΛh^\downarrow_\Lambda, a(s)a'(s), and l(s)l'(s) have the meanings specified in the source. Evaluation conjecture. If Λ\Lambda has fermionic degree mm and N(Λ)N\ge\ell(\Lambda^{\circledast}), then

EN,m[PΛ(x,θ;q,t)]=tn(SΛ)+dF(Λ)q(m1)Λa/δmn(Λa/δm)hΛ(q,t)sSΛ(1qaΛ(s)tNlΛ(s)).\mathsf E_{N,m}[P_\Lambda(x,\theta;q,t)]=\frac{t^{n(\mathcal S\Lambda)+d^{\mathcal F}(\Lambda)}}{q^{(m-1)|\Lambda^a/\delta^m|-n(\Lambda^a/\delta^m)}h^\downarrow_\Lambda(q,t)}\prod_{s\in\mathcal S\Lambda}\left(1-q^{a'_{\Lambda^{\circledast}}(s)}t^{N-l'_{\Lambda^{\circledast}}(s)}\right).

This formula is one of the conjectures recalled from earlier work; the supplied text gives no resolution status for the full stated range.

Sources & referencesView supporting material

Primary source

O. Blondeau-Fournier, L. Lapointe and P. Mathieu, “Double Macdonald polynomials as the stable limit of Macdonald superpolynomials”, arXiv:1211.3186 (2013).

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