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1.
Let π Δ be the automorphic representation of GL(2,ℚA) associated with Ramanujan modular form Δ and L(s, π Δ) the global L-function attached to π Δ. We study Selberg’s integral for the automorphic L-function L(s, π Δ) under GRH. Our results give the information for the number of primes in short intervals attached to Ramanujan automorphic representation.  相似文献   

2.
We prove that almost all positive even integers n can be written as n=p22+p33+p44+p55 with |pkk-N4|N321325+? for 2≤k≤5. Moreover, it is proved that each sufficiently large odd integer N can be represented as N=p1+p22+p33+p44+p55 with |pkk-N5|N321325+?for 1≤k≤5.  相似文献   

3.
本文证明了对5≤s≤8,几乎所有的满足某些同余条件的正整数N都可以表示为N=p31+···+p3s,|pi-(N/s)1/3|≤N1/3-θs,其中θ5=7261-2ε,θ6=5159-ε,θ7=11333-ε,θ8=19561-ε.  相似文献   

4.
Asymptotic behaviour of the counting function of Beurling integers is deduced from Chebyshev upper bound and Mertens formula for Beurling primes. The proof based on some properties of corresponding zeta-function on the right of its abscissa of convergence.  相似文献   

5.
Summary We provide a general asymptotic formula which permits applications to sums like <InlineEquation ID=IE"1"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"2"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"3"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"4"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"5"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"6"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"7"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"8"><EquationSource Format="TEX"><![CDATA[<InlineEquation ID=IE"9"><EquationSource Format="TEX"><![CDATA[$]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation>$]]></EquationSource></InlineEquation>]]></EquationSource></InlineEquation> \sum_{x< n\le x+y} \big(d(n)\big)^2, \quad \sum_{x< n\le x+y} d(n^3),\quad \sum_{x< n\le x+y}\big(r(n)\big)^2, \quad \sum_{x< n\le x+y}r(n^3), $$ where $d(n)$ and $r(n)$ are the usual arithmetic functions (number of divisors, sums of two squares), and $y$ is small compared to~$x$.  相似文献   

6.
An important theorem of Shiu gives a (precise) bound for the average of values of multiplicative functions, of a certain class, over ‘short’ intervals. Here we obtain, by simple means, the above result of same qualitative order.  相似文献   

7.
Summary  We describe a procedure to construct a 4-coloured graph representing a closed, connected 3-manifold Italic>M starting from a Heegaard diagram of Italic>M. As a consequence, we prove that, to each Heegaard diagram of a (closed) 3-manifold Italic>M, canonically corresponds a spine (Italic>Heegaard spine) of Italic>M.  相似文献   

8.
梅森素数研究的若干基本理论及其意义   总被引:5,自引:0,他引:5  
梅森素数的研究历史源远流长,意义非凡.介绍相关的定义、理论及算法,归纳此项工作的意义,并讨论一些有待解决的相关数论问题.  相似文献   

9.
"大互联网梅森素数寻求(GIMPS)"研究计划进展   总被引:5,自引:1,他引:5  
梅森素数是一种特殊的素数,它的研究与寻求一直是数论研究的代表性问题之一.寻求梅森素数之路艰辛曲折,其计算复杂性对现代计算能力极具挑战.计算机网络技术的发展,特别是能使虚拟组织共享计算资源的全球分布计算技术,使得寻求速度大大加快.本文综述寻求梅森素数的最新进展及历史进程,并介绍寻求梅森数所用的分布计算技术.  相似文献   

10.
In his 1964 paper, de Bruijn (Math. Comp. 18 (1964) 537) called a pair (a,b) of positive odd integers good, if , where is the set of nonnegative integers whose 4-adic expansion has only 0's and 1's, otherwise he called the pair (a,b) bad. Using the 2-adic integers we obtain a characterization of all bad pairs. A positive odd integer u is universally bad if (ua,b) is bad for all pairs of positive odd integers a and b. De Bruijn showed that all positive integers of the form u=2k+1 are universally bad. We apply our characterization of bad pairs to give another proof of this result of de Bruijn, and to show that all integers of the form u=φpk(4) are universally bad, where p is prime and φn(x) is the nth cyclotomic polynomial. We consider a new class of integers we call de Bruijn universally bad integers and obtain a characterization of such positive integers. We apply this characterization to show that the universally bad integers u=φpk(4) are in fact de Bruijn universally bad for all primes p>2. Furthermore, we show that the universally bad integers φ2k(4), and more generally, those of the form 4k+1, are not de Bruijn universally bad.  相似文献   

11.
A well known conjecture about the distribution of primes asserts that between two consecutive squares there is always at least one prime number. The proof of this conjecture is quite out of reach at present, even under the assumption of the Riemann Hypothesis. This paper is concerned with the distribution of prime numbers between two consecutive powers of integers, as a natural generalization of the afore-mentioned conjecture.   相似文献   

12.
本文主要利用加性数论的理论考察整数和集,稚广了Vscvolod F.Lev的关于整数和的定理:设n≥1,B增包含[1,n],|B|〉n/4,k=|B|+1,则 (1)当1≤n≤2k-3时,有ia^s能写成两个不同B中元之和。 (2)当2k-2≤,1〈3k-3时,有ia^s能写成最多四个B中元之和。 (3)当3k-3≤n〈4k-4时,有ia^s能写成最多2h个B中元之和。 其中h=max[2k/4k-4-n],i=1,2,3,4,6  相似文献   

13.
Let R be a commutative ring and let M be an R-module with the property that its zero submodule has a primary decomposition. Let E be an injective R-module with W.Ass R (E) = Ass R (E) (here W.Ass R (E) denotes the set of weakly associated primes of E). Then we will show that Hom R (M,E) has a secondary representation and we will specify the set of its attached prime ideals. This revised version was published online in June 2006 with corrections to the Cover Date.  相似文献   

14.
We define Wieferich numbers to be those odd integers w≥3 that satisfy the congruence 2 φ(w)≡1 (mod  w 2). It is clear that the distribution of Wieferich numbers is closely related to the distribution of Wieferich primes, and we give some quantitative forms of this statement. We establish several unconditional asymptotic results about Wieferich numbers; analogous results for the set of Wieferich primes remain out of reach. Finally, we consider several modifications of the above definition and demonstrate that our methods apply to such sets of integers as well. During the preparation of this paper, W.B. was supported in part by NSF grant DMS-0070628, F.L. was supported in part by grants SEP-CONACYT 37259-E and 37260-E, and I.S. was supported in part by ARC grant DP0211459.  相似文献   

15.
16.
The main purpose of this paper is to study the mean value properties of the character sums over the interval [1,p/8) by using the mean value theorems of the Dirichlet L-functions, and give an interesting mean value formula for this study.  相似文献   

17.
We prove that each sufficiently large odd integer N can be written as sum of the form N = p1^3 +p2^3 +... +p9^3 with [pj - (N/9)^1/31 ≤ N^(1/3)-θ, where pj, j = 1,2,...,9, are primes and θ = (1/51) -ε.  相似文献   

18.
In this paper, we study generalised prime systems for which both the prime and integer counting functions are asymptotically well-behaved, in the sense that they are approximately li(x) and ρx, respectively (where ρ is a positive constant), with error terms of order O(xθ1) and O(xθ2) for some θ1,θ2<1. We show that it is impossible to have both θ1 and θ2 less than .  相似文献   

19.
The main purpose of this paper is to study the mean value properties of a sum analogous to character sums over short intervals by using the mean value theorems for the Dirichlet L-functions, and to give some interesting asymptotic formulae. This work is supported by the N.S.F. (60472068) of P.R. China.  相似文献   

20.
It is proved unconditionally that every sufficiently large positive integer satisfying some necessary congruence conditions can be represented as the sum of s almost equal k-th powers of prime numbers for 2 ≤ k ≤ 10 and s =2k + 1, which gives a short interval version of Hun's theorem.  相似文献   

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