نتایج جستجو برای: σ urysohns lemma

تعداد نتایج: 34229  

Journal: :CoRR 2001
Ulrich Ultes-Nitsche Pierre Wolper

ing from Figure 3. What distinguishes the two abstractions is the nature of the homomorphism. In the case of Figure 2 the homomorphism preserves properties satisfied within fairness, whereas it does not do so in the case of Figure 3. In Section 8 we will elaborate on this and show that one can conclude that properties satisfied within fairness by the abstract system also hold on the concrete sy...

Journal: :Inf. Process. Lett. 2005
Joost Engelfriet Sebastian Maneth

It is decidable for deterministic MSO definable graph-to-string or graphto-tree transducers whether they are equivalent on a context-free set of graphs. It is well known that the equivalence problem for nondeterministic (one-way) finite state transducers is undecidable, even when they cannot read or write the empty string [Gri68]. In contrast, equivalence is decidable for deterministic finite s...

Journal: :physical chemistry research 2014
mohammad solimannejad alireza gholipour

in this study, the role of interaction of pi electrons on the strength of simultaneous σ-hole interactions (pnicogen, chalcogen and halogen bonds) is investigated using the quantum chemical calculations. x-ben||taz∙∙∙y1,y2,y3 complexes (x = cn, f, cl, br, ch3 , oh and nh2, taz= s-triazine and y1,y2 and y3 denotes ph2f, hsf, and clf molecules) is introduced as a model. the results show that inte...

2007
VERA FISCHER

In this talk we will consider three properties of iterations with mixed (finite/countable) supports: iterations of arbitrary length preserve ω1, iterations of length ≤ ω2 over a model of CH have the א2-chain condition and iterations of length < ω2 over a model of CH do not increase the size of the continuum. Definition 1. Let Pκ be an iterated forcing construction of length κ, with iterands 〈Q̇α...

2010
John Steel Nam Trang

Let + be the theory + ℝ + " Every set of reals is ∞-Borel " + " Ordinal Determinacy ". For any Γ ⊆ (ℝ), let Γ = ∪{ ∣ is transitive and ∃, ⊆ ℝ×ℝ (, ∈ Γ and (ℝ//,) ∼ = (, ∈))}. We'll prove the following theorems: Theorem 1. (Woodin) Assume + + = ((ℝ)). Then the following are equivalent: 1. Let us call the statement in (2) above " Σ 1-reflection " to Suslin co-Suslin. Theorem 2. (Woodin) Assume + ...

2016
Zi Wang Bolei Zhou Stefanie Jegelka

In this supplement, we provide proofs for all theorems and lemmas in the main paper, more exhaustive experimental results and details on the experiments. 1 Proofs 1.1 Proofs from Section 2 Lemma 2.1. In any round t, the point selected by EST is the same as the point selected by a variant of GP-UCB with λ t = min x∈Xˆmt−µt−1(x) σt−1(x). Conversely, the candidate selected by GP-UCB is the same as...

2012
Darij Grinberg

1) By the rearrangement inequality, it is enough to prove this inequality when σ is the permutation (or, more precisely, one of the permutations) which makes the sequences (a1, a2, ..., an) and ( bσ(1), bσ(2), ..., bσ(n) ) equally sorted (because if we treat a1, a2, ..., an and b1, b2, ..., bn are constants, then this permutation σ maximizes the left hand side a1bσ(1)+a2bσ(2)+ ...+anbσ(n) of ou...

2014
He Yang

and Applied Analysis 3 iii For every t > 0, AS t is bounded in X and there existsMα > 0 such that ‖AS t ‖ ≤ Mαt−α. 2.2 iv A−α is a bounded linear operator for 0 ≤ α ≤ 1 in X. In the following, we denote by C J,Xα the Banach space of all continuous functions from J into Xα with supnorm given by ‖u‖C supt∈J‖u t ‖α for u ∈ C J,Xα . From Lemma 2.1 iv , since A−α is a bounded linear operator for 0 ≤...

2014
Zdeněk Šmarda Miroslava Růžičková

and Applied Analysis 3 Define a function m t by m t v t ∫ t 0 g s v s ds v t ∫ t 0 g s ds, 2.5 then m 0 v 0 u0, v t ≤ m t , v′ t ≤ f t m t , 2.6 m′ t 2g t v t v′ t ( 1 ∫ t 0 g s ds ) ≤ m t [ 2g t f t ( 1 ∫ t 0 g s ds )] . 2.7 Integrating 2.7 from 0 to t, we have m t ≤ u0 exp (∫ t 0 ( 2g s f s ( 1 ∫ s 0 g σ dσ )) ds ) . 2.8 Using 2.8 in 2.6 , we obtain v′ t ≤ u0f t exp (∫ t 0 ( 2g s f s ( 1 ∫ s ...

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