Equality of two quadrant marked mesh pattern polynomials

Let Q132(a,b,τ,c)(t,x)Q_{132}^{(a,b,\tau,c)}(t,x) denote the polynomial associated with 132-avoiding permutations and the indicated quadrant marked mesh pattern parameters. The parameters are (0,k,,0)(0,k,\emptyset,0) and (1,k1,,0)(1,k-1,\emptyset,0), with k1k\geq 1.

Equality conjecture. For all k1k\geq 1, we have

Q132(0,k,,0)(t,x)=Q132(1,k1,,0)(t,x).Q_{132}^{(0,k,\emptyset,0)}(t,x)=Q_{132}^{(1,k-1,\emptyset,0)}(t,x).

The equality is motivated by the observed coincidence of the corresponding polynomials. Its resolution is not specified in the supplied text.

Sources & referencesView supporting material

Primary source

Dun Qiu and Jeffrey B. Remmel, “Quadrant marked mesh patterns in 123-avoiding permutations”, arXiv:1705.00164 (2018).

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