一些新的多重Rogers—Ramanujan恒等式

本文利用初等方法简捷地推了Ｐａｕｌｅ的结果，从而得到了一系列多重Ｒｏｇｅｒｓ－Ｒａｍａｎｕｊａｎ恒等式。     

q-超球多项式与若干Rogers-Ramanujan型恒等式

利用ｑ－超球多项式的两个简单性质,建立了关于ｑ－级数的两个变换公式,借助这些变换公式并结合著名的Ｒｏｇｅｒｓ－Ｒａｍａｎｕｊａｎ恒等式,给出了若干Ｒｏｇｅｒｓ－Ｒａｍａｎｕｊａｎ型恒等式的简洁证明。     

一类q-级数恒等式的新证法

本文利用一个已知的变换公式及其它基本超几何函数的求和公式，给出了一类ｑ级数恒等式的新的更简单的证明，并建立了该类恒等式的一般形式．     

两个三角函数恒等式及其应用

定理 1　设α ,β ,γ∈Ｒ ,则有ｃｏｓαｓｉｎ(β -γ) ｃｏｓβｓｉｎ(γ -α) ｃｏｓγｓｉｎ(α - β) =0 . (1)　　定理 2　设α ,β ,γ∈Ｒ ,则有ｓｉｎαｓｉｎ(β -γ) ｓｉｎβｓｉｎ( γ -α) ｓｉｎγｓｉｎ(α - β) =0 .(2 )证　构造二元一次方程组ｘｃｏｓα ｙｃｏｓβ =ｃｏｓγｘｓｉｎα ｙｓｉｎβ =ｓｉｎγ(3)(4 )由 (3) ,(4 )两式可得　　ｘｓｉｎ(α - β) =ｓｉｎ(γ - β) (5)　　ｙｓｉｎ(α - β) =ｓｉｎ(α -γ) (6 )将 (3)式两边同乘ｓｉｎ(α - β)后 ,再将 (5) ,(6 )两式代入即得定理 1.将 (4 )式…     

一些Rogers-Ramanujan恒等式的广义形式

本文用简便的方法，得到了一些Ｒｏｇｅｒｓ－Ｒａｍａｎｕｊａｎ恒等式的广义形式．     

一些新的多重Rogers－Ramanujan恒等式

本文利用初等刀法简捷地推广了Ｐａｕｌｅ的结果，从而得到了一系列多重Ｒｏｇｅｒｓ－Ｒａｍａｎｕｊａｎ恒等式．     

一类有指数分布的随机投入产出模型

本文导出独立的指数分布随机变量和的分布公式，利用它求出技术系数和最终需求都为指数分布随机变量的投入产出模型的确定性等价方程，推广了Ｈａｒｒｉｓ和Ｇｏｉｃｏｅｃｈｅａ的结果．     

微积分基本公式和中值定理

微积分基本公式和中值定理陈大均（华南建设学院西院）定理如果函数Ｆ（。）是连续函数ｆ（。）在区间［ａ，ｂ］上的一个原函数，则众所周知，（ｌ）式是微积分基本公式，也叫做牛顿（Ｎｅｗｔｏｎ）一莱布尼兹（Ｌｅｉｂｆｌｉｓ）公式，这个公式揭示定积分与原函数（不...     

q超几何级数2Φ0[a,b;z]两个基本恒等式及其一些应用

本文由有限域上交错矩阵方程Ｘ Ｋ２ｖＸ’＝０的解数公式得到ｑ超几何级数２Φ０的一个基本恒等式，并且用它能直接把一些特殊矩阵的这类方程的解数由函数２Φ０表出。另外还用２Φ０的一个恒等式得出Ｆｑ上ｍ阶特殊矩阵的个数。     

Weierstrass类型函数的光滑度与分形维数之间的联系初探

本文利用分数阶导数定义了处处没有导数的连续函数的分数阶光滑度概念，讨论了Ｗｅｉｅｒｓｔｒａｓｓ型函数的分数阶光滑度与其图形的分形维数之间的联系，并且给出了一个非常和谐的基本公式。     

GRADED IDENTITIES AND PI EQUIVALENCE OF ALGEBRAS IN POSITIVE CHARACTERISTIC

ABSTRACT

The algebras M _{a, b} (E) ? E and M _a+b (E) are PI equivalent over a field of characteristic 0 where E is the infinite-dimensional Grassmann algebra. This result is a part of the well-known tensor product theorem. It was first proved by Kemer in 1984–1987 (see Kemer 1991 Kemer , A. ( 1991 ). Ideals of identities of associative algebras . Translations Math. Monographs 87 . Providence , RI : Am. Math. Soc. .[Crossref] , [Google Scholar]); other proofs of it were given by Regev (1990 Regev , A. ( 1990 ). Tensor products of matrix algebras over the Grassmann algebra . J. Alg. 133 ( 2 ): 512 – 526 . [CROSSREF]  [Google Scholar]), and in several particular cases, by Di Vincenzo (1992 Di Vincenzo , O. M. ( 1992 ). On the graded identities of M_{1, 1}( E) . Israel J. Math. 80 ( 3 ): 323 – 335 .[Crossref], [Web of Science ®] , [Google Scholar]), and by the authors (2004). Using graded polynomial identities, we obtain a new elementary proof of this fact and show that it fails for the T-ideals of the algebras M _{1, 1}(E) ? E and M ₂(E) when the base field is infinite and of characteristic p > 2. The algebra M _{a, a} (E) ? E satisfies certain graded identities that are not satisfied by M _2a (E). In another paper we proved that the algebras M _{1, 1}(E) and E ? E are not PI equivalent in positive characteristic, while they do satisfy the same multilinear identities.     

Supernomial Coefficients,Polynomial Identities and q-Series

q-Analogues of the coefficients of xa in the expansion of _j=1 ^N (1 + x + + x^j)^Lj are proposed. Useful properties, such as recursion relations, symmetries and limiting theorems of the q-supernomial coefficients are derived, and a combinatorial interpretation using generalized Durfee dissection partitions is given. Polynomial identities of boson-fermion-type, based on the continued fraction expansion of p/k and involving the q-supernomial coefficients, are proven. These include polynomial analogues of the Andrews-Gordon identities. Our identities unify and extend many of the known boson-fermion identities for one-dimensional configuration sums of solvable lattice models, by introducing multiple finitization parameters.     

A Family of Partition Identities Proved Combinatorially

We present three infinite families of partitions that, for corresponding parameters, are equinumerous. This generalizes an identity proved by the first author (Pacific Journal of Mathematics, 77(1) (1978)) and two identities proved by the second and third authors (Relatório Técnico 08/99 IMECC-UNICAMP, 1999).     

Ideals of identities of representations of nilpotent lie algebras

Let L be a Lie algebra, nilpotent of class 2, over an infinite field K, and suppose that the centre C of L is one dimensional; such Lie algebras are called Heisenberg algebras. Let ρ:L→hom _KV be a finite dimensional representation of the Heisenberg algebra L such that ρ(C) contains non-singular linear transformations of V, and denote l(ρ) the ideal of identities for the representation ρ. We prove that the ideals of identities of representations containing I(ρ) and generated by multilinear polynomials satisfy the ACC. Let sl ₂(L) be the Lie algebra of the traceless 2×2 matrices over K, and suppose the characteristic of K equals 2. As a corollary we obtain that the ideals of identities of representations of Lie algebras containing that of the regular representation of sl ₂(K) and generated by multilinear polynomials, are finitely based. In addition we show that one cannot simply dispense with the condition of multilinearity. Namely, we show that the ACC is violated for the ideals of representations of Lie algebras (over an infinite field of characteristic 2) that contain the identities of the regular representation of sl ₂(K).     

两类组合恒等式的过渡方法

本文提出联系两类组合恒等式的极限方法，据此可二项式系数和项式系数恒等式自然过渡到Ａｂｅｌ型系数的组合等式。因此对任一给定的含参量的二项式系数的组合恒等式。这一方法可用于直接证明其至发现相同结构的Ａｂｅｌ系数恒等式。     

New proofs of identities of Lebesgue and Göllnitz via tilings

In 1840, V.A. Lebesgue proved the following two series-product identities:

     

Group Identities and Prime Rings Generated by Units

Abstract

Let R be a prime ring and U(R) the group of units of R. We prove that if U(R) generates R and satisfies a group identity,then R is either a domain or a full matrix ring over a finite field.     

Rogers-Ramanujan Type Identities for Partitions with Attached Odd Parts

In this paper we present a new infinite family of partition identities. The genesis of our work lies in two formulas of Lucy Slater related to the modulus 8. Hirschhorn, Agarwal and Subbarao have previously found intriguing interpretations for Slater's formula, but none has led to an infinite family of results.