共查询到17条相似文献,搜索用时 62 毫秒
1.
M. LASHKARIZADEH BAMI 《数学学报(英文版)》2008,24(4):607-610
In the present paper, it is shown that, for a locally compact commutative hypergroup K with a Borel measurable weight function w, the Banach algebra L^1 (K, w) is semisimple if and only if L^1 (K) is semisimple. Indeed, we have improved compact groups to the general setting of locally a well-krown result of Bhatt and Dedania from locally compact hypergroups. 相似文献
2.
Finite Projective Geometries and Classification of the Weight Hierarchies of Codes (Ⅰ) 总被引:1,自引:0,他引:1
WenDeCHEN TorleivKLφVE 《数学学报(英文版)》2004,20(2):333-348
The weight hierarchy of a binary linear [n,κ] code C is the sequence (d1,d2,...,dκ), where dr is the smallest support of an r-dimensional subcode of C. The codes of dimension 4 are collected in classes and the possible weight hierarchies in each class is determined by finite projective geometries.The possible weight hierarchies in class A, B, C, D are determined in Part (Ⅰ). The possible weight hierarchies in class E, F, G, H, I are determined in Part (Ⅱ). 相似文献
3.
Ming Chun XU 《数学学报(英文版)》2005,21(4):899-902
In this paper the following theorem is proved: Every group L3(q) for q = 3^(2m-1)(m≥2) is characterized by its set of element orders. 相似文献
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Nonsingularity on Level—2(r1,r2)—circulant Matrices of Type(m,n) 总被引:8,自引:2,他引:6
NonsingularityonLevel-2(r_1,r_2)-circulantMatricesofType(m,n)JiangZhaolin(江兆林)(Dept.ofMath.,LinyiTeacher'sCollege,Shandong,Lin... 相似文献
6.
In this paper, by initiative research on local spectral theory of total class wF(p, r, q) operators, we get some important results. Such as total class wF(p, r,q) op-erators is normaloid operator, the local spectral subspace of total class wF(p, r, q) operators is equal to the space EλH(Eλ the Reisz idempotent, with respect to ,λ, of T), total class wF(p, r, q) operators has finite ascent, and so on. 相似文献
7.
A Note on Adjacent Strong Edge Coloring of K(n,m) 总被引:11,自引:0,他引:11
Jing-wen Li Zhong-fu Zhang Xiang-en Chen Yi-rong Sun 《应用数学学报(英文版)》2006,22(2):273-276
In this paper, we prove that the adjacent strong edge chromatic number of a graph K(n,m) is n + 1, with n ≥ 2, m ≥ 1. 相似文献
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O. M. Katerinchuk 《Journal of Mathematical Sciences》2008,154(3):312-318
The concepts of K-large and generalized K-large Abelian groups are introduced, and their main properties and interconnections are studied. We consider groups that
are K-large (generalized K-large) with respect to the class of all groups and torsion-free groups. The main focus is on the case where K consists of bounded p-groups for an infinite set of prime numbers p.
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Translated from Fundamentalnaya i Prikladnaya Matematika, Vol. 13, No. 3, pp. 51–60, 2007. 相似文献
12.
Mikhail Ershov 《Israel Journal of Mathematics》2007,158(1):297-347
Let D be a finite dimensional division algebra over a local field of characteristic p and let SL
1(D) denote the group of elements of reduced norm 1 in D. In this paper we prove that SL
1(D) is finitely presented as a profinite group.
This work is part of the author’s Ph.D. Thesis at Yale University. 相似文献
13.
William D. BANKS Florian LUCA 《数学学报(英文版)》2007,23(10):1915-1918
In this note, we show that the number of composite integers n ≤ x such that φ(n)|n - 1 is at most O(x^1/2(loglog x)^1/2), thus improving earlier results by Pomerance and by Shan. 相似文献
14.
Loïc Grenié 《manuscripta mathematica》2003,110(3):283-311
We compute, up to an element of a fixed number field, the critical values of the L-function of a pair of automorphic, cuspidal,
cohomological representations of any GL(r). The result is expressed as a product of cohomological periods divided by an archimedean integral. The main tool used is
the rationality of the cohomology of the three representations involved in the Rankin–Selberg integral. As an intermediate
step, we also obtained the rationality of the Eisenstein cohomology.
Received: 14 February 2002 / Revised version: 17 September 2002 Published online: 14 February 2003 相似文献
15.
Xu-an ZHAO Hong-zhu GAO Xiao-le SU School of Mathematical Sciences Beijing Normal University Beijing China 《中国科学A辑(英文版)》2007,50(8):1093-1102
In this paper,we study the homotopy classification of continuous maps between two r-1 connected 2r dimensional topological manifolds M,N.If we assume some knowledge on the homotopy groups of spheres,then the complete classification can be obtained from the homotopy invariants of M,N.We design an algorithm and compose a program to give explicit computations. 相似文献
16.
Let ƒ be a transcendental meromorphic function, a a nonzero finite complex number, and n ⩾ 2 a positive integer. Then ƒ + a(ƒ′)
n
assumes every complex value infinitely often. This answers a question of Ye for n = 2. A related normality criterion is also given.
This work was supported by the National Natural Science Foundation of China (Grant No. 10771076), the Natural Science Foundation
of Guangdong Province, China (Grant No. 07006700) and by the German-Israeli Foundation for Scientific Research and Development
(Grant No. G-809-234.6/2003) 相似文献
17.
Using elementary graded automorphisms of polytopal algebras (essentially the coordinate rings of projective toric varieties)
polyhedral versions of the group of elementary matrices and the Steinberg and Milnor groups are defined. They coincide with
the usual K-theoretic groups in the special case when the polytope is a unit simplex and can be thought of as compact/polytopal substitutes
for the tame automorphism groups of polynomial algebras. Relative to the classical case, many new aspects have to be taken
into account. We describe these groups explicitly when the underlying polytope is 2-dimensional. Already this low-dimensional
case provides interesting classes of groups.
Received: 13 December 2001 / Revised version: 24 June 2002
The second author was supported by the Deutsche Forschungsgemeinschaft, INTAS grant 99-00817 and TMR grant ERB FMRX CT-97-0107
Mathematics Subject Classification (2000): 14L27, 14M25, 19C09, 52B20 相似文献