Inequalities between parity-separated partition functions

Let OE(n)\overline{\mathcal{OE}}(n) and EO(n)\overline{\mathcal{EO}}(n) denote the paper's parity-separated partition-counting functions, and let p0(n)p_0(n) and p1(n)p_1(n) be the associated partition functions. Inequality conjecture.

(i) For every n3n\geq3,

OE(2n+1)>EO(2n).\overline{\mathcal{OE}}(2n+1)>\overline{\mathcal{EO}}(2n).

(ii) For every n1n\geq1,

p0(n)p1(n),p_0(n)\geq p_1(n),

with strict inequality unless n{1,10,13}n\in\{1,10,13\}. These inequalities conjecturally describe a systematic dominance between the two parity-separated partition families; the supplied text gives no resolution status beyond presenting them among the paper's conjectures.

Sources & referencesView supporting material

Primary source

Shishuo Fu and Dazhao Tang, “Partitions with parts separated by parity: conjugation, congruences and the mock theta functions”, arXiv:2306.13309 (2023).

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