نتایج جستجو برای: countablynear ps compact set
تعداد نتایج: 762636 فیلتر نتایج به سال:
Let Sn be the symmetric group of permutations π = π1π2 · · ·πn of {1, 2, . . . , n}. An index i of π is a peak if πi−1 < πi > πi+1, and we let P (π) denote the set of peaks of π. Given any set S of positive integers, we define PS(n) = {π ∈ Sn : P (π) = S}. Burdzy, Sagan, and the first author showed that for all fixed subsets of positive integers S and sufficiently large n we have |PS(n)| = pS(n...
A double Dudeney set in Kn is a multiset of Hamilton cycles in Kn having the property that each 2-path in Kn lies in exactly two of the cycles. In this paper, we construct a double Dudeney set in Kn when n = p1p2 · · · ps + 2, where p1, p2, . . . , ps are different odd prime numbers and s is a natural number.
In this paper, the notions of countable S∗-compactness is introduced in L-topological spaces based on the notion of S∗-compactness. An S∗-compact L-set is countably S∗-compact. If L = [0, 1], then countable strong compactness implies countable S∗-compactness and countable S∗-compactness implies countable F-compactness, but each inverse is not true. The intersection of a countably S∗-compact L-s...
Let $L$ be a completely regular frame and $mathcal{R}L$ be the ring of real-valued continuous functions on $L$. We consider the set $$mathcal{R}_{infty}L = {varphi in mathcal{R} L : uparrow varphi( dfrac{-1}{n}, dfrac{1}{n}) mbox{ is a compact frame for any $n in mathbb{N}$}}.$$ Suppose that $C_{infty} (X)$ is the family of all functions $f in C(X)$ for which the set ${x in X: |f(x)|geq dfrac{1...
It is well known that, when endowed with the Gromov-Hausdorff distance dGH, collection M of all isometry classes compact metric spaces a complete and separable space. also that (M,dGH) geodesic space, but there no structural characterization geodesics in M. In this paper we provide two characterizations We call γ:[0,1]→M Hausdorff-realizable if exists space Z containing isometric copies γ(t) fo...
To reduce bias by residual confounding in nonrandomized database studies, the high-dimensional propensity score (hd-PS) algorithm selects and adjusts for previously unmeasured confounders. The authors evaluated whether hd-PS maintains its capabilities in small cohorts that have few exposed patients or few outcome events. In 4 North American pharmacoepidemiologic cohort studies between 1995 and ...
where μ1 = 0.3, μ2 = 0.9, σ1 = 0.1, σ2 = 0.2 and c = 0.3. In Fig. 1D we used a prior pS(θ) = pS(θ1)pS(θ2), with pS(θi) given by a normal distribution (μ = 0.3, σ = 0.35). A learning rate of η = 0.005 was used to sampled trajectories which had a length of 50 and 300 time steps in Fig. 1C and F, respectively. In Fig. 1F the time-discrete version of the synaptic sampling algorithm (7) was used, wi...
LetN an o-minimal expansion of a real closed field. We develop the cohomology theory for the category ofN -definable manifolds with continuous N -definable maps and use this to solve the Peterzil-Steinhorn problem [ps] on the existence of torsion points onN -definably compact N -definable abelian groups. Namely we prove the following result: Let G be an N -definably compact N -definably connect...
We study an interesting class of Banach function algebras of innitely dierentiable functions onperfect, compact plane sets. These algebras were introduced by Honary and Mahyar in 1999, calledLipschitz algebras of innitely dierentiable functions and denoted by Lip(X;M; ), where X is aperfect, compact plane set, M = fMng1n=0 is a sequence of positive numbers such that M0 = 1 and(m+n)!Mm+n ( m!Mm)...
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