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I revisit Bressoud's generalised Borwein conjecture. Making use of certain positivity-preserving transformations for q-binomial coefficients, I establish the truth of infinitely many new cases of the Bressoud conjecture. In addition, I…

Number Theory · Mathematics 2022-07-25 Alexander Berkovich

In this paper, we conjecture an extension to Bressoud's 1996 generalization of Borwein's famous 1990 conjecture. We then state a few infinite hierarchies of non-negative $q$-series identities which are interesting examples of our proposed…

Combinatorics · Mathematics 2025-05-06 Alexander Berkovich , Aritram Dhar

Several new transformations for q-binomial coefficients are found, which have the special feature that the kernel is a polynomial with nonnegative coefficients. By studying the group-like properties of these positivity preserving…

Combinatorics · Mathematics 2009-12-09 Alexander Berkovich , S. Ole Warnaar

Transformation formulas for four-parameter refinements of the q-trinomial coefficients are proven. The iterative nature of these transformations allows for the easy derivation of several infinite series of q-trinomial identities, and can be…

Combinatorics · Mathematics 2010-06-18 S. Ole Warnaar

Given an arbitrary ordered pair of coprime integers (a,b) we obtain a pair of identities of the Rogers--Ramanujan type. These identities have the same product side as the (first) Andrews--Gordon identity for modulus 2ab\pm 1, but an…

Combinatorics · Mathematics 2007-05-23 S. Ole Warnaar

We combine an extended version of Bailey's transform with an identity of Bressoud and with some identities of Berkovich and Warnaar to prove a variety of positivity results for alternating sums involving partition functions.

Number Theory · Mathematics 2020-03-06 Mohamed El Bachraoui

Let p > 2 be prime. We state and prove (under mild hypotheses on the residual representation) a geometric refinement of the Breuil-M\'ezard conjecture for 2-dimensional mod p representations of the absolute Galois group of Qp. We also state…

Number Theory · Mathematics 2013-03-21 Matthew Emerton , Toby Gee

We prove two positivity conjectures proposed by Guo for alternating sums and factorial ratios built from Gaussian coefficients. The first result proves the positivity of the odd $q$-super Catalan numbers \[…

Combinatorics · Mathematics 2026-05-28 Ji-Cai Liu

We introduce the antipodal pairs property for probability measures on finite Boolean algebras and prove that conditional versions imply strong forms of log-concavity. We give several applications of this fact, including improvements of some…

Combinatorics · Mathematics 2009-07-03 Jeff Kahn , Michael Neiman

We provide combinatorial tools inspired by work of Warnaar to give combinatorial interpretations of the sum sides of the Andrews-Gordon and Bressoud identities. More precisely, we give an explicit weight- and length-preserving bijection…

Combinatorics · Mathematics 2024-03-11 Jehanne Dousse , Frédéric Jouhet , Isaac Konan

Some new identities for Schur functions are proved. In particular, we settle in the affirmative a recent conjecture of Ishikawa-Wakayama and solve a problem raised by Bressoud.

Combinatorics · Mathematics 2007-05-23 F. Jouhet , J. Zeng

In this paper, we first propose a cohomological derivation of the celebrated Euler's Pentagonal Number Theorem. Then we prove an identity that corresponds to a bosonic extension of the theorem. The proof corresponds to a cohomological…

History and Overview · Mathematics 2023-11-20 Masao Jinzenji , Yu Tajima

We conjecture that, if the quotient of two $q$-binomial coefficients with the same top argument is a polynomial, then it has non-negative coefficients. We summarise what is known about the conjecture and prove it in two non-trivial cases.…

Combinatorics · Mathematics 2026-01-05 Mona Gatzweiler , Christian Krattenthaler

We generalise our still-wide-open $q$-rious positivity conjecture from 2011 to a $q$-rious unimodality conjecture.

Number Theory · Mathematics 2025-12-18 S. Ole Warnaar , Wadim Zudilin

The celebrated (First) Borwein Conjecture predicts that for all positive integers~$n$ the sign pattern of the coefficients of the ``Borwein polynomial'' $$(1-q)(1-q^2)(1-q^4)(1-q^5) \cdots(1-q^{3n-2})(1-q^{3n-1})$$ is $+--+--\cdots$. It was…

Combinatorics · Mathematics 2022-02-01 Chen Wang , Christian Krattenthaler

We obtain connection coefficients between $q$-binomial and $q$-trinomial coefficients. Using these, one can transform $q$-binomial identities into a $q$-trinomial identities and back again. To demonstrate the usefulness of this procedure we…

Quantum Algebra · Mathematics 2009-10-31 S. Ole Warnaar

We give "hybrid" proofs of the $q$-binomial theorem and other identities. The proofs are "hybrid" in the sense that we use partition arguments to prove a restricted version of the theorem, and then use analytic methods (in the form of the…

Number Theory · Mathematics 2019-01-17 Dennis Eichhorn , James Mc Laughlin , Andrew V. Sills

With the uniform positions we prove theorems of Landau and Hardy-Littlwood type for Goldbach, Chen, Lemoine-Levy and other binary partitions of positive integers. We also pose some new conjectures.

Number Theory · Mathematics 2012-03-27 Vladimir Shevelev

We give a proof of a recent combinatorial conjecture due to the first author, which was discovered in the framework of commutative algebra. This result gives rise to new companions to the famous Andrews-Gordon identities. Our tools involve…

Combinatorics · Mathematics 2023-02-24 Pooneh Afsharijoo , Jehanne Dousse , Frédéric Jouhet , Hussein Mourtada

We prove a recent conjecture of Lassalle about positivity and integrality of coefficients in some polynomial expansions. We also give a combinatorial interpretation of those numbers. Finally, we show that this question is closely related to…

Combinatorics · Mathematics 2007-05-23 F. Jouhet , B. Lass , J. Zeng
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