“…The arithmetic of -regular partition functions has received a great deal of attention (see, for example, [1,2,5,10,[12][13][14][15]20,22,[24][25][26][27]30]). Recently, Xia and Yao [31] established several infinite families of congruences modulo 2 for b 9 (n).…”
In this note we investigate the function B k, (n), which counts the number of (k, )-regular bipartitions of n. We shall prove an infinite family of congruences modulo 11: for α ≥ 2 and n ≥ 0, B 3,11 3 α n + 5 · 3 α−1 − 1 2 ≡ 0 (mod 11).
“…The arithmetic of -regular partition functions has received a great deal of attention (see, for example, [1,2,5,10,[12][13][14][15]20,22,[24][25][26][27]30]). Recently, Xia and Yao [31] established several infinite families of congruences modulo 2 for b 9 (n).…”
In this note we investigate the function B k, (n), which counts the number of (k, )-regular bipartitions of n. We shall prove an infinite family of congruences modulo 11: for α ≥ 2 and n ≥ 0, B 3,11 3 α n + 5 · 3 α−1 − 1 2 ≡ 0 (mod 11).
“…Several infinite families of congruence identities have also been shown for Q. (See [13], [14], [17], [18].) In fact, it was shown in [14] that for any prime p, there exist positive integers a and b such that Q(an + b) ≡ 0 (mod p) for all positive integers n.…”
Section: Introduction and Statement Of Resultsmentioning
Abstract. Let Q(n) denote the number of partitions of n into distinct parts. We show that Dyson's rank provides a combinatorial interpretation of the well-known fact that Q(n) is almost always divisible by 4. This interpretation gives rise to a new false theta function identity that reveals surprising analytic properties of one of Ramanujan's mock theta functions, which in turn gives generating functions for values of certain Dirichlet L-functions at nonpositive integers.
“…We give details only for the function f 1 (z); the remaining cases are analogous. There is a simple criterion for deciding when an η-product is a holomorphic modular form (see, for example, [11,Theorem 4]). We find that f 1 (z) ∈ M 4 (Γ 0 (1152), χ 2 ), where χ 2 denotes the Kronecker symbol for Q( √ 2).…”
Section: Proof Of the Main Resultsmentioning
confidence: 99%
“…Recent works [1,7,11] p-adically relating certain values of Q(n) to Fourier coefficients of holomorphic modular forms guarantee that for any modulus M coprime to 3, there are indeed infinitely many independent congruences of the form Q(an + b) ≡ 0 (mod M). However, it was believed that to identify examples explicitly in this theory would require a case-by-case computation of the action of the Hecke operators T (p) (see Proposition 5 for the definition) on the relevant forms.…”
A relationship is established between the factorization of 24n + 1 and the 5-divisibility of Q(n), where Q(n) is the number of partitions of n into distinct parts. As an application, an abundance of infinite families of congruences for Q(n) modulo powers of 5 are explicitly exhibited.
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