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1.
Marek Golasiński 《Compositio Mathematica》2000,124(1):1-9
Let X be a G-connected nilpotent simplicial set, where G is a finite Hamiltonian group. We construct a cofibrant equivariant minimal model of X with the strong homotopy type of the injective minimal model of X defined by Triantafillou. 相似文献
2.
Faran posed an open problem about analysis on complex Finsler spaces: Is there an analogue of the
-Laplacian? Is there an analogue of Hodge theory? Under the assumption that (M, F) is a compact strongly K?hler Finsler manifold, we define a
-Laplacian on the base manifold. Our result shows that the well-known Hodge decomposition theorem in K?hler manifolds is still
true in the more general compact strongly K?hler Finsler manifolds.
Dedicated to Professor Sheng GONG on the occasion of his 75th birthday 相似文献
3.
O. Duman 《Czechoslovak Mathematical Journal》2007,57(1):367-375
Using the concept of
-convergence we provide a Korovkin type approximation theorem by means of positive linear operators defined on an appropriate
weighted space given with any interval of the real line. We also study rates of convergence by means of the modulus of continuity
and the elements of the Lipschitz class. 相似文献
4.
Projectively condensed semigroups,generalized completely regular semigroups and projective orthomonoids 总被引:1,自引:0,他引:1
The class of projectively condensed semigroups is a quasivariety of unary semigroups, the class of projective orthomonoids is a subquasivariety
of . Some well-known classes of generalized completely regular semigroups will be regarded as subquasivarieties of . We give the structure semilattice composition and the standard representation of projective orthomonoids, and then obtain
the structure theorems of various generalized orthogroups.
Partially supported by a UGC (HK) grant #2060123 (04-05). 相似文献
5.
Aleksandar Ivić 《Central European Journal of Mathematics》2005,3(2):203-214
Let Δ(x) denote the error term in the Dirichlet divisor problem, and E(T) the error term in the asymptotic formula for the mean square of
. If E
*(t)=E(t)-2πΔ*(t/2π) with
, then we obtain
and
It is also shown how bounds for moments of | E
*(t)| lead to bounds for moments of
. 相似文献
6.
In this paper, we use Zorn’s Lemma, multiplicatively closed subsets and saturated closed subsets for the following two topics
(i) The existence of prime submodules in some cases
(ii) The proof that submodules with a certain property satisfy the radical formula.
We also give a partial characterization of a submodule of a projective module which satisfies the prime property. 相似文献
7.
V. F. Murzina 《Algebra and Logic》2003,42(3):181-191
A modal logic associated with the
-spaces introduced by Ershov is examined. We construct a modal calculus that is complete w.r.t. the class of all strictly linearly ordered
-frames, and the class of all strictly linearly ordered
-frames. 相似文献
8.
9.
From Scalar to Vector Optimization 总被引:3,自引:0,他引:3
Initially, second-order necessary optimality conditions and sufficient optimality conditions in terms of Hadamard type derivatives
for the unconstrained scalar optimization problem ϕ(x) → min, x ∈ ℝ
m
, are given. These conditions work with arbitrary functions ϕ: ℝ
m
→ ℝ, but they show inconsistency with the classical derivatives. This is a base to pose the question whether the formulated
optimality conditions remain true when the “inconsistent” Hadamard derivatives are replaced with the “consistent” Dini derivatives.
It is shown that the answer is affirmative if ϕ is of class
(i.e., differentiable with locally Lipschitz derivative).
Further, considering
functions, the discussion is raised to unconstrained vector optimization problems. Using the so called “oriented distance”
from a point to a set, we generalize to an arbitrary ordering cone some second-order necessary conditions and sufficient conditions
given by Liu, Neittaanmaki, Krizek for a polyhedral cone. Furthermore, we show that the conditions obtained are sufficient
not only for efficiency but also for strict efficiency. 相似文献
10.
We investigate the Eden-Staudacher and Beisert-Eden-Staudacher equations for the anomalous dimension of twist-2 operators
at a large spin s in the supersymmetric gauge theory. We reduce these equations to a set of linear algebraic equations and calculate their kernels
analytically. We demonstrate that in the perturbation theory, the anomalous dimension is a sum of products of the Euler functions
ζ(k) having the maximum transcendentality property. We also show that at a large coupling, the “singular” solution of the
Beisert-Eden-Staudacher equation reproduces the anomalous dimension constants predicted from the string side of the AdS/CFT
correspondence.
__________
Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 155, No. 1, pp. 117–129, April, 2008. 相似文献
11.
In this paper, we classify all optimal linear[n, n/2] codes up to length 12. We show that thereis a unique optimal [10, 5, 5] code up to equivalence. 相似文献
12.
Shaowen Li 《Czechoslovak Mathematical Journal》2005,55(3):803-808
In this paper, we give the mapping theorems on
-spaces and g-metrizable spaces by means of some sequence-covering mappings, mssc-mappings and π-mappings. 相似文献
13.
GÉRARD Laumon 《Compositio Mathematica》1997,105(3):267-359
In this paper we compute the cohomology with compact supports of a Siegelthreefold as a virtual module over the product of the Galois group of
over
and the Hecke algebra. We use a method which has been developed by Ihara, Langlands and Kottwitz: comparison of the Grothendieck--Lefschetz formula and the Arthur--Selberg trace formula. 相似文献
14.
With the help of some new results about weight enumerators of self-dual codes over
we investigate a class of double circulant codes over
, one of which leads to an extremal even unimodular 40–dimensional lattice. It is conjectured that there should be Nine more constructions of the Leech lattice 相似文献
15.
苏育才 《中国科学A辑(英文版)》2001,44(8):980-983
It is proved that an indecomposable Harish- Chandra module over the Virasoro algebra must be (i) a uniformly bounded module,
or (ii) a module in Category
, or (iii) a module in Category
, or ( iv) a module which contains the trivial module as one of its composition factors. 相似文献
16.
Long Miao 《Bulletin of the Brazilian Mathematical Society》2007,38(4):585-594
Let
be a class of groups. A subgroup H of a group G is called
-s-supplemented in G, if there exists a subgroup K of G such that G = HK and K/K ∩ HG belongs to
where HG is the maximal normal subgroup of G which is contained in H. The main purpose of this paper is to study some subgroups of Fitting subgroup and generalized Fitting subgroup
-s-supplemented and some new criterions of p-nilpotency of finite groups are obtained.
*This research is supported by the grant of NSFC and TianYuan Fund of Mathematics of China (Grant #10626047). 相似文献
17.
Ján Jakubík 《Czechoslovak Mathematical Journal》2008,58(1):1-14
Freytes proved a theorem of Cantor-Bernstein type for algbras; he applied certain sequences of central elements of bounded
lattices. The aim of the present paper is to extend the mentioned result to the case when the lattices under consideration
need not be bounded; instead of sequences of central elements we deal with sequences of internal direct factors of lattices.
This work was supported by Science and Technology Assistance Agency under the contract No APVT-51-032002. 相似文献
18.
In this note we study some properties concerning certain copies of the classic Banach space c
0 in the Banach space
of all bounded linear operators between a normed space X and a Banach space Y equipped with the norm of the uniform convergence of operators. 相似文献
19.
Guang-hui Cai 《Mathematica Slovaca》2007,57(4):381-388
Strong laws are established for linear statistics that are weighted sums of a
-mixing random sample. The results obtained generalize the results of Baxter et al. [SLLN for weighted independent indentically distributed random variables, J. Theoret. Probab. 17 (2004), 165–181] to
-mixing random variables.
This paper is supported by Key discipline of Zhejiang Province (Key discipline of Statistics of Zhejiang Gongshang University)
and National Natural Science Foundation of China. 相似文献
20.
We consider conditions under which the distributions of sequences of integer-valued nonnegative strongly additive functions can be approximated by the distributions of sums of independent random variables.__________Translated from Lietuvos Matematikos Rinkinys, Vol. 45, No. 2, pp. 270–281, April–June, 2005. 相似文献