共查询到20条相似文献,搜索用时 15 毫秒
1.
Nasernejad Mehrdad Khashyarmanesh Kazem Roberts Leslie G. Toledo Jonathan 《Czechoslovak Mathematical Journal》2022,72(1):209-237
Czechoslovak Mathematical Journal - Let I be an ideal in a commutative Noetherian ring R. Then the ideal I has the strong persistence property if and only if (Ik+1: RI) = Ik for all k, and I has... 相似文献
2.
Yong Cheng 《Mathematical Logic Quarterly》2015,61(4-5):274-287
Let denote third order arithmetic. Let Harrington's Principle, , denote the statement that there is a real x such that every x‐admissible ordinal is a cardinal in . In this paper, assuming there exists a remarkable cardinal with a weakly inaccessible cardinal above it, we force a set model of via set forcing without reshaping. 相似文献
3.
Eve Oja 《Journal of Mathematical Analysis and Applications》2008,338(1):407-415
We introduce and investigate the strong approximation property of Banach spaces which is strictly stronger than the approximation property and at least formally weaker than the weak bounded approximation property. Among others, we show that the weak bounded approximation property is equivalent to a quantitative strengthening of the strong approximation property. Some recent results on the approximation property of Banach spaces and their dual spaces are improved. 相似文献
4.
Yingxuan Niu 《Journal of Mathematical Analysis and Applications》2011,376(2):528-534
Let X be a compact metric space and f:X→X be a continuous map. In this paper, we prove that if f has the average-shadowing property and the minimal points of f are dense in X, then f is weakly mixing and totally strongly ergodic. As applications we obtain that if f is a distal or Lyapunov stable map having the average-shadowing property, then X is consisting of one point. Moreover, we illustrate that the full shift has the average-shadowing property. 相似文献
5.
We show that the strong approximation property (strong AP) (respectively, strong CAP) and the weak bounded approximation property (respectively, weak BCAP) are equivalent for every Banach space. This gives a negative answer to Oja's conjecture. As a consequence, we show that each of the spaces c0 and ?1 has a subspace which has the AP but fails to have the strong AP. 相似文献
6.
《Mathematical Logic Quarterly》2017,63(1-2):150-154
We show that it is consistent, relative to ω many supercompact cardinals, that the super tree property holds at for all but there are weak square and a very good scale at . 相似文献
7.
8.
Witold Wnuk 《Positivity》2009,13(2):435-441
We prove that in the class of discrete Banach lattices the strong Schur property is equivalent to the disjoint strong Schur
property (Theorem 3.1). Roughly speaking the strong Schur property holds iff an appropriate condition concerning sequences
with positive pairwise disjoint terms is satisfied.
相似文献
9.
R.L. Hudson 《Journal of Functional Analysis》1979,34(2):266-281
A noncommutative analog of the concept of Markov time is formulated, in association with a canonical Wiener process (P, Q) [4]. For such a Markov time T, the quantities PT(t) = P(t + T) ? P(T), QT(t) = Q(t + T) ? Q(T) can be defined using spectral integrals with operator-valued integrands, and constitute a new canonical Wiener process (PT, QT), which is independent of the analog of the σ-field of events generated by the process up to the Markov time. 相似文献
10.
It is shown that every partially ordered set with the fixed point property and with ten or fewer elements actually has the strong fixed point property.Supported by NSERC Operating Grant A7884.Supported by NSERC Operating Grant 41702. 相似文献
11.
Summary We consider a class of reflecting Brownian motions on the non-negative orthant inR
K
. In the interior of the orthant, such a process behaves like Brownian motion with a constant covariance matrix and drift vector. At each of the (K-1)-dimensional faces that form the boundary of the orthant, the process reflects instantaneously in a direction that is constant over the face. We give a necessary condition for the process to have a certain semimartingale decomposition, and then show that the boundary processes appearing in this decomposition do not charge the set of times that the process is at the intersection of two or more faces. This boundary property plays an essential role in the derivation (performed in a separate work) of an analytical characterization of the stationary distributions of such semimartingale reflecting Brownian motions.Research performed in part while the second author was visiting the Institute for Mathematics and Its Applications with support provided by the National Science Foundation and the Air Force Office of Scientific Research. R.J. William's research was also supported in part by NSF Grant DMS 8319562. 相似文献
12.
Bernd S. W. Schröder 《Order》1992,9(4):311-319
The following theorem is proved: If Q=L{P
t
tT} is a finite lexicographic sum of posets such that T and all P
t
have the strong fixed point property then Q has the strong fixed point property. Moreover we show the strong fixed point property for two more classes of posets. 相似文献
13.
《随机分析与应用》2012,30(1):97-123
AbstractWe investigate the existence and uniqueness of strong solutions for state-dependent regime-switching diffusion processes in an infinite state space with singular coefficients. Non-explosion conditions are given by using the Zvonkin’s transformation. The strong Feller property is proved by further assuming that the diffusion in each fixed environment generates a strong Feller semigroup, and our results can also be applied to irregular or degenerate situations. 相似文献
14.
15.
We study the Artin Approximation property with constraints in a different frame. As a consequence we give a nested Artin Strong Approximation property for algebraic power series rings over a field. 相似文献
16.
V. Jeyakumar 《Mathematical Programming》2006,106(1):81-92
The strong conical hull intersection property (CHIP) is a geometric property of a collection of finitely many closed convex
intersecting sets. This basic property, which was introduced by Deutsch et al. in 1997, is one of the central ingredients
in the study of constrained interpolation and best approximation. In this paper we establish that the strong CHIP of intersecting
sets of constraints is the key characterizing property for optimality and strong duality of convex programming problems. We
first show that a sharpened strong CHIP is necessary and sufficient for a complete Lagrange multiplier characterization of
optimality for the convex programming model problem
where C is a closed convex subset of a Banach space X, S is a closed convex cone which does not necessarily have non-empty interior, Y is a Banach space,
is a continuous convex function and g:X→Y is a continuous S-convex function. We also show that the strong CHIP completely characterizes the strong duality for partially finite convex
programs, where Y is finite dimensional and g(x)=−Ax+b and S is a polyhedral convex cone. Global sufficient conditions which are strictly weaker than the Slater type conditions are given
for the strong CHIP and for the sharpened strong CHIP.
The author is grateful to the referees for their constructive comments and valuable suggestions which have contributed to
the final preparation of the paper. 相似文献
17.
18.
Suppose a manifold is produced by finite Dehn surgery on a non-torus alternating knot for which Seifert's algorithm produces
a checkerboard surface. By demonstrating that it contains an essential lamination, we prove that such a manifold has as universal cover and, consequently, is irreducible and has infinite fundamental group. Together with previous work of Roberts,
who proved this result in the case of alternating knots for which Seifert's algorithm does not produce a checkerboard surface,
and Moser, who classified the manifolds produced by surgery on torus knots, this paper completes the proof that alternating
knots satisfy Strong Property P.
Received: May 20, 1998. 相似文献
19.
An ordered set which has the fixed point property but not the strong fixed point property is presentedSupported by NSERC Operating Grant A7884.Supported by NSERC Operating Grant 41702. 相似文献
20.
K. Bruce Erickson 《Monatshefte für Mathematik》1990,109(3):237-246
We prove that the positive harmonic functions for symmetric or centered probability measures on countable groups of polynomial growth are constant. 相似文献