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排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
研究了有界区域上含非线性阻尼的2D g-Navier-Stokes方程解的一致渐近性,通过证明过程族的一致吸收集存在和一致条件(C)成立,得到了含非线性阻尼的2D g-Navier-Stokes方程一致吸引子存在. 相似文献
992.
Barbara Szafran Jan Pawlaczyk 《Journal of inclusion phenomena and macrocyclic chemistry》1995,23(4):277-288
The 1 : 1 inclusion complex involving sulfafurazole (SF) and-cyclodextrin (-CD) is prepared by the freeze-drying method and characterized on the basis of its chemical analysis, thermal behavior, infrared spectrum, X-ray powder pattern and13C NMR spectrum in DMSO-d6 solution. The stability constant of the inclusion complex was determined by the solubility method. The effect of cyclodextrin on the UV absorption spectrum of sulfafurazole was also observed. 相似文献
993.
Klaus Hoechsmann 《Rendiconti del Circolo Matematico di Palermo》1995,44(1):5-20
Let ζ be a primitivesp-th root of unity for a primep>2, and consider the group Ω(ζ) of cyclotomic units in the ringR(ζ)=ℒ[ζ+ζ-1]. This paper deals with the image of Ω(ζ) in the unit group ofR(ζ)/qR(ζ), whereq is a prime ≠p. In particular, it obtains criteria for this image to be essentially everything, and a lower bound on the density of primesp (withq fixed) for which it cannot be. These results have a direct bearing on previous work about units in integral group rings for
cyclic groups of orderpq.
Work supported in part by an operating grant from NSERC (Canada). 相似文献
994.
Henrik Stetkaer 《Aequationes Mathematicae》1995,49(1):252-275
We study properties of solutionsf, g, h C(G) of the functional equation
相似文献
995.
K. Coolsaet 《Combinatorica》1995,15(4):481-487
Several properties of graphs with ==2,a
2=4 are studied. It is proved that such graphs are locally unions of triangles, hexagons or heptagons. As a consequence, a distance regular graph with intersection array (13,10,7;1,2,7) does not exist. 相似文献
996.
S. M. B. Kashani 《Geometriae Dedicata》1995,56(3):263-268
We describe all isometric immersionsf:S
p
n
S
p
+1/n+m
,n –p 2m, whose first normal space is -parallel in the complement of totally geodesic points while the set of totally geodesic points does not disconnectS
p
n
. 相似文献
997.
Harald Löwe 《Geometriae Dedicata》1995,58(1):45-51
We construct symmetric planes associated with an arbitrary locally compact connected nearfield
. If
is a proper nearfield, i.e.
{;;}, then the tangent translation plane of this symmetric plane is not classical. All previously known examples of symmetric planes have classical tangent translation planes.Herrn Professor Dr. H. Salzmann zum 65. Geburtstag gewidmet 相似文献
998.
LetK be a convex domain. A maximal snake of sizen is a set of non-overlapping translatesK
1, ...,K
N
ofK, whereK
i
touchesK
j
if and only if |i –j|=1 and no translate ofK can touchK
1 orK
n
without intersecting an additionalK
i
,i=1, ...,n. The size of the smallest maximal snake is proved to be 11 ifK is a parallelogram and to be 10 otherwise. 相似文献
999.
Consider the variational integral
where Ω⊂ℝ
n
andp≥n≥2. H: (0, ∞)→[0, ∞) is a smooth convex function such that
. We approximateJ by a sequence of regularized functionalsJ
δ whose minimizers converge strongly to anJ-minimizing function and prove partial regularity results forJ
δ-minimizers. 相似文献
1000.
Letw be a suitable weight function,B
n,p denote the polynomial of best approximation to a functionf inL
w
p
[–1, 1],v
n
be the measure that associates a mass of 1/(n+1) with each of then+1 zeros ofB
n+1,p–B
n,p and be the arcsine measure defined by
. We estimate the rate at which the sequencev
n
converges to in the weak-* topology. In particular, our theorem applies to the zeros of monic polynomials of minimalL
w
p
norm.This author gratefully acknowledges partial support from NSA contract #A4235802 during 1992, AFSOR Grant 226113 during 1993 and The Alexander von Humboldt Foundation during both of these years. 相似文献
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