questions on time complexity of algorithms

Tài liệu Đề tài " On the complexity of algebraic numbers I. Expansions in integer bases " ppt

... quantita-tive version is established (in the sense that one bounds explicitly the number of exceptional subspaces).We now turn to the proof of Theorem 5. Keep the notation and theassumptions of this theorem. ... morphism of constant length, we get, on the one hand, that|Un||Vn|≤|W1|1+|W2|≤ r − 1and, on the other hand, that σn(u) is a preﬁx of Vn of length at least 1/rtimes the length of ... every element of Q(β) ∩(0, 1) has an eventually periodic β-expansion.5. Proofs of Theorems 1 to 4We begin by a short proof of Theorem 2.Proof of Theorem 2. Let a =(ak)k≥1be a non-eventually...

Báo cáo khoa học: "Empirical Lower Bounds on the Complexity of Translational Equivalence ∗" pdf

Danh mục: Báo cáo khoa học

... of dis-continuities. Many types of discontinuous con-stituents exist in text independently of any trans-lation. Simard et al. (2005) give examples suchas English verb-particle constructions, ... links from each of these words toNULL. Second, if n words on one side of the bi-text aligned to m words on the other side withm > n then we added NULL links for each of the words on the side ... data4http://nlp.cs.nyu.edu/GenPar980Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the ACL, pages 977–984,Sydney, July 2006.c2006 Association for Computational LinguisticsEmpirical...

complexity of algorithms - peter gacs

Danh mục: Toán học

... 13810 Decision trees 14310.1 Algorithms using decision trees 14310.2 The notion of decision trees 14610.3 Nondeterministic decision trees 14710.4 Lower bounds on the depth of decision trees ... tapes. Thus, we assigned a conﬁguration of T to each conﬁguration of the computation of S.142 Algorithmic decidability2.1 IntroductionIn this chapter, we study the question: which problems can ... function. An online Turing machine contains, besidesthe usual tapes, two extra tapes. The input tape is readable only in one direction, the outputtape is writeable only in one direction. An online...

Tài liệu Real-time, on-line monitoring of organic chemical reactions using extractive electrospray ionization tandem mass spectrometry pdf

Danh mục: Tự động hóa

... detection of process deviations and prompt modiﬁcation of reactionconditions are key to achieving the best control of chemicalreactions. However, this demands techniques that are suitedfor real -time, ... addition of acrylonitrile (shown inFig. 2) demonstrate the wealth of valuable informationprovided about ongoing chemical reactions by EESI-MS. Atthe beginning of the reaction, the protonated ... JohnWiley & Sons, Ltd.Obtaining comprehensive information on chemical reactionsis crucial for the characterization of reaction mechanisms aswell as the maximization of production efﬁciency...

Báo cáo khoa học: Effect of annealing time of an ice crystal on the activity of type III antifreeze protein pdf

Danh mục: Báo cáo khoa học

... allowing uncontrolled growth atthe nonequilibrium Tf. This leads to the detection of anonzero TH value at time zero (0 h of annealing).The height and curvature of the convex ice front aredeﬁned ... valuereﬂects the fraction of ice-bound AFPs on the ﬂat iceplane. Indeed, TH increases in proportion with thetotal concentration of nfeAFP8, as can be seen inFig. 3A. The fraction of AFPs on the ﬂat ice ... time- dependent ampliﬁcation of TH explains the detection of a higher TH value at the slower cooling rate, it maybe concluded that the time of annealing is an essentialinﬂuence on the TH value of nfeAFP8.For...

Báo cáo khoa học: "On the Computational Complexity of Dominance Links in Grammatical Formalisms" doc

Danh mục: Báo cáo khoa học

... e3) = 0.Extensions The subsumption of Petri nets is notinnocuous, as it allows to derive lower bounds on the computational complexity of MLIGs. Amongseveral extensions of Petri net with ... Computational Complexity We study in this section the complexity of sev-eral decision problems on MLIGs, prominently of emptiness and membership problems, in thegeneral (Section 4.2), k-bounded (Section ... the control wordp1p2· · · ppis a permutation of a member of W∗and the dominance relations of W hold in the as-sociated derivation tree. The language L(G) of an UVG-dl G is the set of...

Báo cáo "Stability Radius of Linear Dynamic Equations with Constant Coefficients on Time Scales " pdf

Danh mục: Báo cáo khoa học

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Cancer causes and cancer research on many levels of complexity docx

Danh mục: Sức khỏe giới tính

... multi-stage process of cancer progression explains its long latent period. Exposure to strong radiation may initiate the process by inducing mutations to create an oncogene. One oncogene alone is unable ... patterns of cancer incidences vary greatly across countries. Natives of Japan had high rates of stomach but low rates of colon cancer. Natives of Hawaii had high rates of colon but low rates of stomach ... alleviation of harsh conditions lengthened life expectancy, first of the aristocracy then of the general population. A subtle and complex disease, it was difficult to diagnose. Identification of...

Báo cáo toán học: " Existence of Positive Solutions for Nonlinear m-point Boundary Value Problems on Time Scales" doc

Danh mục: Toán học

... Bohner, M, Peterson, A: Advances in Dynamic Equations on Time Scales. Birkhauser,Boston (2003)23. Bohner, M, Peterson, A: Dynamic Equations on Time Scales. An Introduction withApplications. Birkhauser, ... seen as a generalization of thatin ordinary diﬀerential equations.Recently, the existence and multiplicity of positive solutions for nonlinear diﬀerentialequations on time scales have been ... positive solutions; cone; multi-point; boundary value problem; time scale.1 IntroductionThe study of dynamic equations on time scales goes back to its founder Hilger [1], and is anew area of still...

Báo cáo hóa học: " Solvability of boundary value problems with Riemann-Stieltjes Δ-integral conditions for second-order dynamic equations on time scales at resonance" pptx

Danh mục: Hóa học - Dầu khí

... Then, the conditionf ∈ R(g, I)is equiva-lent to each one of the following items:(i) f is a monotonic function on I;(ii) f is a continuous function on I;(iii) f is regulated on I;(iv) ... problems on time scales. Nonlinear Anal. 44, 527–535 (2001).doi:10.1016/S0362-546X(99)00290-45. Anderson, D, Avery, R, Henderson, J: Existence of solutions for a one dimensional p-Laplacian on time- scales. ... Δ?Δ?-integral conditions,resonance, time scales1 IntroductionHilger [1] introduced the notion of time scales in order to unify the theory of continu-ous and discrete calculus. The field of dynamical...

Báo cáo hóa học: " Some nonlinear delay integral inequalities on time scales arising in the theory of dynamics equations" ppt

Danh mục: Hóa học - Dầu khí

... boundedness of solutions of certa in delay dynamic equations on time scales.Feng et al. Journal of Inequalities and Applications 2011, 2011:29http://www.journalofinequalitiesandapplications.com/content/2011/1/29Page ... new bounds for so lutions of certain dynamic equations on time scales will bederived in the following examples.Example 1: Consider the delay dynamic integral equation on time scalesup(t )=C ... University, Qufu, Shandong, 273165, China2School of Science,Shandong University of Technology, Zibo, Shandong, 255049, ChinaAuthors’ contributionsQF carried out the main part of this article....

Báo cáo hóa học: " Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales" pptx

Danh mục: Hóa học - Dầu khí

... Advances in Dynamic Equations on Time Scales,Birkh¨auser, Boston, Mass,USA, 2003.5 M. Bohner and S. H. Saker, “Oscillation of second order nonlinear dynamic equations on time scales,”The Rocky ... research activity concerning the oscillation andnonoscillation of solutions of various equations on time scales, and we refer the reader to5–18.Recently, Erbe et al. 19–21 considered the asymptotic ... 2010.19 L. Erbe, A. Peterson, and S. H. Saker, “Asymptotic behavior of solutions of a third-order nonlineardynamic equation on time scales,” Journal of Computational and Applied Mathematics,...

Báo cáo hóa học: " Research Article Lyapunov Stability of Quasilinear Implicit Dynamic Equations on Time Scales" docx

Danh mục: Hóa học - Dầu khí

... improvementsbecause of the complicated structure of every time scale.2. Nonlinear Implicit Dynamic Equations on Time Scales2.1. Some Basic Notations of the Theory of the Analysis on Time ScalesA time scale ... generalization of 1.1 and 1.2.The organization of this paper is as follows. In Section 2, we present shortly somebasic notions of the analysis on time scales and give the solvability of Cauchy ... ⊂ S,whereS is the domain of uniform exponential stability of . On the exponential stable domain of a time scale, wecan refer to 10, 18, 19. By the deﬁnition of exponential stability, it implies...

Báo cáo hóa học: " Research Article Existence and Stability of Antiperiodic Solution for a Class of Generalized Neural Networks with Impulses and Arbitrary Delays on Time Scales" ppt

Danh mục: Hóa học - Dầu khí

... solutions to nonmonotone evolutionequations with discontinuous nonlinearities,” Nonlinear Analysis, vol. 43, pp. 233–251, 2001.17 Y. Chen, J. J. Nieto, and D. O’Regan, “Anti-periodic solutions ... “Anti-periodic solutions to nonmonotone evolutionequations with discontinuous nonlinearities,” Nonlinear Analysis, vol. 43, pp. 233–251, 2001.28 J. Y. Shao, “Anti-periodic solutions for shunting ... theexistence of the anti-periodic solutions of system 1.1.InSection 4, we give the criteria of global exponential stability of the anti-periodic solutions of system 1.1.InSection 5,anexample...