Alexander Berkovich, Peter Paule
A few years ago Foda, Quano, Kirillov and Warnaar proposed and proved various finite analogs of the celebrated Andrews-Gordon identities. In this paper we use these polynomial identities along with the combinatorial techniques introduced in our recent paper to derive Garrett, Ismail, Stanton type formulas for two variants of the Andrews-Gordon identities.
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The object of this paper is to propose and prove a new generalization of the Andrews-Gordon identities, extending a recent result of Garrett, Ismail and Stanton. We also give a combinatorial discussion of the finite form of their result, which appeared in the work of Andrews, Knopfmacher, and Paule.
We present what we call a "motivated proof" of the Göllnitz-Gordon-Andrews identities. A similar motivated proof of the Rogers-Ramanujan identities was previously given by G. E. Andrews and R. J. Baxter, and was subsequently generalized to Gordon's identities by J. Lepowsky and M. Zhu. We anticipate that the present proof of the Göllnitz-Gordon-Andrews identities will illuminate certain twisted vertex-algebraic constructions.
A multilateral Bailey Lemma is proved, and multiple analogues of the Rogers--Ramanujan identities and Euler's Pentagonal Theorem are constructed as applications. The extreme cases of the Andrews--Gordon identities are also generalized using the multilateral Bailey Lemma where their final form is written in terms of determinants of theta functions.
Binomial versions of the Andrews-Gordon-Bressoud identities are given.
On the Göllnitz-Gordon-Andrews identities via commutative algebra
本文通过交换代数方法证明了戈尔尼茨-戈登-安德鲁斯恒等式，并推广为一类更一般的恒等式。
We construct Andrews-Gordon type evidently positive series as generating functions for the partitions satisfying the difference conditions imposed by Capparelli's identities and Göllnitz-Gordon identities. The construction involves building base partitions, and move parts around subject to certain rules. Some missing cases are also considered, but no new identities are given.
Andrews--Gordon type identities with parity restrictions through particle motion
本文通过粒子运动双射研究带有奇偶限制的安德鲁斯-戈登类型恒等式，推广了相关恒等式并给出了一个关于Ariki-Koike代数的恒等式的新证明。
Combinatorial approach to Andrews-Gordon and Bressoud type identities
本研究受Warnaar工作启发，通过构造整数分拆相关集合间显式保权重保长度双射，给出Andrews-Gordon与Bressoud恒等式和式侧的组合解释，还发现并证明了奇偶条件相反的Kurşungöz恒等式的q级数版本，同时证明了一批该类已知及新恒等式。
Companions to the Andrews-Gordon and Andrews-Bressoud Identities and Recent Conjectures of Capparelli, Meurman, Primc, and Primc
本文研究了卡帕雷利等人猜想的着色划分恒等式的双变量生成函数，并将其与安德鲁斯-戈尔登恒等式相关联，最终提供了涉及两行圆柱形划分的双射。
In 1967, Andrews found a combinatorial generalization of the Göllnitz-Gordon theorem, which can be called the Andrews-Göllnitz-Gordon theorem. In 1980, Bressoud derived a multisum Rogers-Ramanujan-type identity, which can be considered as the generating function counterpart of the Andrews-Göllnitz-Gordon theorem. Lovejoy gave an overpartition analogue of the Andrews-Göllnitz-Gordon theorem for $i=k$. In this paper, we give an overpartition analogue of this theorem in the general case. By using Bailey's lemma and a change of base formula due to Bressoud, Ismail and Stanton, we obtain an overpar…
Ghost series and a motivated proof of the Bressoud-Göllnitz-Gordon identities
本文结合ghost级数与递归方法，给出Bressoud-Göllnitz-Gordon分拆恒等式的动机性证明，并期望借此理解相关扭曲顶点代数构造。
In 2010, Andrews considers a variety of parity questions connected to classical partition identities of Euler, Rogers, Ramanujan and Gordon. As a large part in his paper, Andrews considered the partitions by restricting the parity of occurrences of even numbers or odd numbers in the Rogers-Ramanujan-Gordon type. The Rogers-Ramanujan-Gordon type partition was defined by Gordon in 1961 as a combinatorial generalization of the Rogers-Ramaujan identities with odd moduli. In 1974, Andrews derived an identity which can be considered as the generating function counterpart of the Rogers-Ramanujan-Gord…
We construct Andrews-Gordon type evidently positive series as generating functions of partitions satisfying certain difference conditions in six conjectures by Kanade and Russell. We construct generating functions for missing partition enumerants, naturally without claiming new partition identities. Thus, we obtain $q$-series conjectures as companions to Kanade and Russell's combinatorial conjectures.
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 graded quotient rings, Durfee squares and rectangles for integer partitions, and $q$-series identities.
We generalise Euler's partition theorem involving odd parts and different parts for all moduli and provide new companions to Rogers-Ramanujan- Andrews-Gordon identities related to this theorem.
Using the theory of intertwining operators for vertex operator algebras we show that the graded dimensions of the principal subspaces associated to the standard modules for $\hat{\goth{sl}(2)}$ satisfy certain classical recursion formulas of Rogers and Selberg. These recursions were exploited by Andrews in connection with Gordon's generalization of the Rogers--Ramanujan identities and with Andrews' related identities. The present work generalizes the authors' previous work on intertwining operators and the Rogers--Ramanujan recursion.
In this paper, we give a conjecture, which generalises Euler's partition theorem involving odd parts and different parts for all moduli. We prove this conjecture for two family partitions. We give $q$-difference equations for the related generating function if the moduli is three. We provide new companions to Rogers-Ramanujan-Andrews-Gordon identities under this conjecture.
Bilateral Bailey Lattices and Andrews-Gordon Type Identities
本文利用简单引理将Bailey格推广至双边版本，并以此为基础，给出了多种Bailey格的双边版本与简单证明，推导出多个恒等式的新$m$-版本，并提供了Bressoud一般恒等式的新初等证明。
We construct an evidently positive multiple series as a generating function for partitions satisfying the multiplicity condition in Schur's partition theorem. Refinements of the series when parts in the said partitions are classified according to their parities or values mod 3 are also considered. Direct combinatorial interpretations of the series are provided.
In a work of 1995, Alladi, Andrews, and Gordon provided a generalization of the two Capparelli identities involving certain classes of integer partitions. Inspired by that contribution, in particular as regards the general setting and the tools the authors employed, we obtain new partition identities by identifying further sets of partitions that can be explicitly put into a one-to-one correspondence by the method described in the 1995 paper. As a further result, although of a different nature, we obtain an analytical identity of Rogers-Ramanujan type, involving generating functions, for a cla…
The Göllnitz-Gordon identities were found by Göllnitz and Gordon independently. In 1967, Andrews obtained a combinatorial generalization of the Göllnitz-Gordon identities, called the Andrews-Göllnitz-Gordon theorem. In 1980, Bressoud extended the Andrews-Göllnitz-Gordon theorem to even moduli, called the Bressoud-Göllnitz-Gordon theorem. Furthermore, Bressoud gave the generating functions for the generalizations of the Göllnitz-Gordon identities. In this article, we will give new companions to the generalizations of the Göllnitz-Gordon identities.
Finding systems of functional equations for Andrews-Gordon type series
本文提出一种搜索 Andrews-Gordon 型双重级数满足的 $q$-差分方程组的算法，并结合 Euler 无穷乘积算法缩小搜索空间，给出发现、证明及分拆移动框架解释。
Andrews--Gordon and Stanton type identities: bijective and Bailey lemma approaches
本文利用双射方法、Bailey 引理和 Bailey 格为 Stanton 提出的 Andrews--Gordon 与 Bressoud 恒等式的两类推广给出新证明，并由此自然导出若干经典恒等式的新 Stanton 型推广。
$\vec M$ Versions of Andrews-Gordon Identities Revisited
本文推广了 Berkovich 和 Paule 的主多项式恒等式，从而得到 Andrews-Gordon 恒等式新的 $\vec M$ 版本，将一类广泛的多重和表示为乘积之和。
An Andrews-Gordon Type Identity Related to Andrews' Parity Consideration
本文针对Rogers-Ramanujan-Gordon定理中k与a模2不同余的情况，利用Bailey引理导出Andrews-Gordon型恒等式，并通过格路峰值给出组合解释。
We present what we call a "motivated proof" of the Andrews-Bressoud partition identities for even moduli. A "motivated proof" of the Rogers-Ramanujan identities was given by G. E. Andrews and R. J. Baxter, and this proof was generalized to the odd-moduli case of Gordon's identities by J. Lepowsky and M. Zhu. Recently, a "motivated proof" of the somewhat analogous Göllnitz-Gordon-Andrews identities has been found. In the present work, we introduce "shelves" of formal series incorporating what we call "ghost series," which allow us to pass from one shelf to the next via natural recursions, leadi…
The $\mathrm{A}_2$ Andrews-Gordon identities and cylindric partitions
受柱分拆与Rogers-Ramanujan型恒等式近期研究启发，本文获得了著名Andrews-Gordon恒等式的A2类似物，证明了任意秩A_{r-1}无限层极限的q-级数恒等式，并导出了秩3特定层柱分拆双变量生成函数的显式正组合公式猜想。
We find involutions for three Rogers-Ramanujan-Gordon type identities obtained by Andrews on the generating functions for partitions with part difference and parity restrictions.
We generalize the "motivated proof" of the Rogers-Ramanujan identities given by Andrews and Baxter to provide an analogous "motivated proof" of Gordon's generalization of the Rogers-Ramanujan identities. Our main purpose is to provide insight into certain vertex-algebraic structure being developed.
We prove a general theorem on overpartitions with difference conditions that unifies generalisations of Schur's theorem due to Alladi-Gordon, Andrews, Corteel-Lovejoy and the author. This theorem also allows one to give companions and refinements of the generalisations of Andrews' theorems to overpartitions. The proof relies on the method of weighted words of Alladi and Gordon and $q$-difference equation techniques introduced recently by the author.
Sang, Shi and Yee, in 2020, found overpartition analogs of Andrews' results involving parity in Rogers-Ramanujan-Gordon identities. Their result partially answered an open question of Andrews'. The open question was to involve parity in overpartition identities. We extend Sang, Shi, and Yee's work to arbitrary moduli, and also provide a missing case in their identities. We also unify proofs of Rogers-Ramanujan-Gordon identities for overpartitions due to Lovejoy and Chen et.al.; Sang, Shi, and Yee's results; and ours. Although verification type proofs are given for brevity, a construction of se…
In a recent work, Andrews defined the singular overpartitions with the goal of presenting an overpartition analogue to the theorems of Rogers--Ramanujan type for ordinary partitions with restricted successive ranks. As a small part of his work, Andrews noted two congruences modulo $3$ for the number of singular overpartitions prescribed by parameters $k=3$ and $i=1$. It should be noticed that this number equals the number of the Rogers--Ramanujan--Gordon type overpartitions with $k=i=3$ which come from the overpartition analogue of Gordon's Rogers--Ramanujan partition theorem introduced by Che…
We prove certain Nahm-type sum representations for the (odd modulus) Andrews-Gordon identities, the (even modulus) Andrews-Bressoud identities, and Rogers' false theta functions. These identities are motivated on one hand by a recent work of C. Jennings-Shaffer and one of us on double pole series, and, on the other hand, by Córdova, Gaiotto and Shao's work on defect Schur's indices.
Lattice paths and the Rogers--Ramanujan--Gordon type theorems with parity considerations
本文通过三类单位步格路径与 Rogers–Ramanujan–Gordon 型分拆之间的双射，将 Andrews 的奇偶性分拆定理对应到格路径，并获得新结论。
On the ordinary and signed Göllnitz--Gordon partitions
本文利用 Andrews 的带符号分拆解释 Göllnitz–Gordon 和，并构造其与普通 Göllnitz–Gordon 分拆之间的双射。
In this paper we prove the identity that generalizes the Andrews-Gordon identity. Also we discuss the relation of our formula to the geometry of affine flag varieties and to the geometry of polyhedra.
Signed Partitions and Rogers-Ramanujan type Identities
本文研究 Rogers–Ramanujan 型恒等式的带符号分拆解释，提出不同于 Andrews 的 Göllnitz–Gordon 恒等式新解释，并给出解析与双射证明。
We extend partition-theoretic work of Andrews, Bressoud, and Burge to overpartitions, defining the notions of successive ranks, generalized Durfee squares, and generalized lattice paths, and then relating these to overpartitions defined by multiplicity conditions on the parts. This leads to many new partition and overpartition identities, and provides a unification of a number of well-known identities of the Rogers-Ramanujan type. Among these are Gordon's generalization of the Rogers-Ramanujan identities, Andrews' generalization of the Göllnitz-Gordon identities, and Lovejoy's ``Gordon's theor…
Bilateral identities of the Rogers--Ramanujan type
本文利用解析方法建立一系列 Rogers–Ramanujan 型双边及多边恒等式，推广多项经典恒等式，并给出闭式求和。
Neighborly partitions, hypergraphs and Gordon's identities
本文证明了一族与安德鲁斯-戈登恒等式对偶的划分恒等式，其灵感来自特殊划分与超图的对应关系，证明方法采用组合交换代数。
We propose and recursively prove polynomial identities which imply Capparelli's partition theorems. We also find perfect companions to the results of Andrews, and Alladi, Andrews and Gordon involving $q$-trinomial coefficients. We follow Kurşungöz's ideas to provide direct combinatorial interpretations of some of our expressions. We use of the trinomial analogue of Bailey's lemma to derive new identities. These identities relate triple sums and products. A couple of new Slater type identities are also noted.
We give a commutative algebra viewpoint on Andrews recursive formula for the partitions appearing in "Gordon's identities", which are a generalization of Rogers-Ramanujan identities. Using this approach and differential ideals we conjecture a family of partition identities which extend Gordon's identities. This family is indexed by r >=2. We prove the conjecture for r=2 and r=3.
A generalization of partition identities of Göllnitz-Gordon, Rogers-Ramanujan and Nandi
提出A^(2)_odd类型level 2标准模的Andrews-Gordon型级数，证明除A^(2)_(6n+3)外的和积恒等式，推广了Göllnitz-Gordon、Rogers-Ramanujan和Nandi分拆恒等式。
Alladi and Gordon introduced the method of weighted words in 1993 to prove a refinement and generalisation of Schur's partition identity. Together with Andrews, they later used it to refine Capparelli's and Göllnitz' identities too. In this paper, we present a new variant of this method, which can be used to study more complicated partition identities, and apply it to prove refinements and generalisations of three partition identities. The first one, Siladić's theorem (2002), comes from vertex operator algebras. The second one, a conjectural identity of Primc (1999), comes from crystal base th…
Finding an Andrews--Gordon type generating function identity for a linked partition ideal is difficult in most cases. In this paper, we will handle this problem in the setting of graph theory. With the generating function of directed graphs with an ``empty'' vertex, we then turn our attention to a $q$-difference system. This $q$-difference system eventually yields a factorization problem of a special type of column functional vectors involving $q$-multi-summations. Finally, using a recurrence relation satisfied by certain $q$-multi-summations, we are able to provide non-computer-assisted proof…
Capparelli conjectured two modular identities for partitions whose parts satisfy certain gap conditions, where were motivated by the calculation of characters for the standard modules of certain affine Lie algebras and by vertex operator theory. These identities were subsequently proved and refined by Andrews, who related them to Jacobi theta functions, and also by Alladi-Andrews-Gordon, Capparelli, and Tamba-Xie. In this paper we prove two new companions to Capparelli's identities, where the evaluations are expressed in terms of Jacobi theta functions and false theta functions.
In 1980, Bressoud conjectured a combinatorial identity $A_j=B_j$ for $j=0$ or $1$, where the function $A_j$ counts the number of partitions with certain congruence conditions and the function $B_j$ counts the number of partitions with certain difference conditions. Bressoud's conjecture specializes to a wide variety of well-known theorems in the theory of partitions. Special cases of his conjecture have been subsequently proved by Bressoud, Andrews, Kim and Yee. Recently, Kim resolved Bressoud's conjecture for the case $j=1$. In this paper, we introduce a new partition function $\bar{B}_j$ whi…
Lattice paths and Rogers--Ramanujan--Gordon type overpartitions
本文建立了 Rogers-Ramanujan-Gordon 型超划分与四类酉步长格点路径的双射关系，将 Chen、Sang 和 Shi 的定理转化为格点路径形式，并基于奇偶性约束推导出超划分的新结果。
Nahm sum identities for Cartan matrices of type $D_k$
本文通过贝利配对理论重新证明了与类型 $D_k$ 卡坦矩阵相关的四个纳姆求和恒等式，并给出了其参数推广的两种不同证明。
Refined versions, analytic and combinatorial, are given for classical integer partition theorems. The examples include the Rogers-Ramanujan identities, the Gollnitz-Gordon identities, Euler's odd=distinct theorem, and the Andrews-Gordon identities. Generalizations of each of these theorems are given where a single part is "marked" or weighted. This allows a single part to be replaced by a new larger part, "shifting" a part, and analogous combinatorial results are given in each case. Versions are also given for marking a sum of parts.
An example of $A_2$ Rogers-Ramanujan bipartition identities of level 3
本文针对 $A^{(1)}_2$ 型仿射 Lie 代数的 level 3 标准模，构造正系数 Andrews–Gordon 型级数及相应二分拆恒等式，并综合多种分拆与递归工具完成证明。
Truncated theta series from the Bailey lattice
本研究利用Bailey格推导奇基雅可比三重积级数的截断形式，得到多个经典theta级数的新截断式与分拆函数不等式，同时证实了相关分拆猜想并证明Merca强猜想在R=3S（S≥1）时成立。
A MacMahon Analysis View of Cylindric Partitions
本文利用MacMahon分区分析研究双元素轮廓柱分区，求得其生成函数显式公式，推广了相关恒等式，并猜想Andrews-Gordon与Bressoud恒等式的新多项式加细，同时利用Bailey引理变体给出新的多项式恒等式无限层级。
An $\mathrm{A}_2$ Bailey tree and $\mathrm{A}_2^{(1)}$ Rogers-Ramanujan-type identities
本研究将$\rm A_2$ Bailey链拓展为四参数$\rm A_2$ Bailey树，以此证明了Kanade-Russell猜想、Andrews-Gordon恒等式的$\rm A_2^{(1)}$类比及更一般的Rogers-Selberg型恒等式，推广了已有结果。
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