The formative period

The thesis approaches and formed on the theoretical basis of Marxism-Leninism on dialectical materialism and historical materialism; Ho Chi Minh Thought; The guidelines and lines of the Communist Party of Vietnam regarding the State and law, building a socialist rule-of-law state and building and perfecting the legal system in the current period.

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The Party's direction and view and the State's policies on completing the land law and development on agriculture, rural areas and farmers in the current period.

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The research objective of the thesis is to clarify legal issues of investment in the form of public-private partnership in Vietnam; on that basis, make recommendations on building a legal model of investment in the form of public-private partnership in Vietnam in the current period.

25p kequaidan6 15-07-2020 28 1   Download

As one of the most important families of non-natural poly-mers with the propensity to form well-defined secondary structures, theb-peptides are attracting increasing attention. The compounds incorporatingb-amino acid residues have found various applications in medicinal chemistry and biochemistry.The conformational pool ofb-peptides com-prises several periodic folded conformations, which can be classified as helices, and nonpolar and polar strands.The latter two are prone to form pleated sheets.

10p tumor12 20-04-2013 30 4   Download

We prove that the existence of an automorphism of finite order on a Q-variety X implies the existence of algebraic linear relations between the logarithm of certain periods of X and the logarithm of special values of the Γ-function. This implies that a slight variation of results by Anderson, Colmez and Gross on the periods of CM abelian varieties is valid for a larger class of CM motives. In particular, we prove a weak form of the period conjecture of Gross-Deligne [11, p. 205]1 .

29p tuanloccuoi 04-01-2013 61 9   Download

A C 1-generic dichotomy for diffeomorphisms: Weak forms of hyperbolicity or infinitely many sinks or sources By C. Bonatti, L. J. D´ ıaz, and E. R. Pujals* A Ricardo Ma˜e (1948–1995), por todo su trabajo n´ Abstract We show that, for every compact n-dimensional manifold, n ≥ 1, there is a residual subset of Diff1 (M ) of diffeomorphisms for which the homoclinic class of any periodic saddle of f verifies one of the following two possibilities: Either it is contained in the closure of an infinite set of sinks or sources (Newhouse phenomenon), or it presents some weak form of...

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Exercise 1: Fill each gap in the passage with the correct form of the word in brackets. Maria Callas was the most (1) ………………………..(fame) soprano of the postwar period. Born in 1923, the Greek opera singer had a truly (2) …………………………..(wonder) voice and a passionate nature. She was known for her technical skill and (3) …………………........(enthusiastic) for hard work. She sang in all the world’s great opera houses, but her career was full of (4) …………………….(person) dramas. She was dismissed by the manager of the Metropolitan Opera House in New York in a personality conflict....

6p neyugnmall001 24-08-2012 230 15   Download

ON A PERIODIC BOUNDARY VALUE PROBLEM FOR SECOND-ORDER LINEAR FUNCTIONAL DIFFERENTIAL EQUATIONS S. MUKHIGULASHVILI Received 26 October 2004 and in revised form 7 March 2005 Unimprovable efficient sufficient conditions are established for the unique solvability of the periodic problem u (t) = (u)(t) + q(t) for 0 ≤ t ≤ ω, u(i) (0) = u(i) (ω) (i = 0,1), where ω 0, : C([0,ω]) → L([0,ω]) is a linear bounded operator, and q ∈ L([0,ω]). 1. Introduction Consider the equation u (t) = (u)(t) + q(t) for 0 ≤ t ≤ ω with the periodic boundary conditions u(i) (0) = u(i)...

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POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DISCRETE SYSTEMS AND POPULATION MODELS YOUSSEF N. RAFFOUL AND CHRISTOPHER C. TISDELL Received 29 March 2004 and in revised form 23 August 2004 We apply a cone-theoretic fixed point theorem to study the existence of positive periodic solutions of the nonlinear system of functional difference equations x(n + 1) = A(n)x(n) + f (n,xn ). 1. Introduction Let R denote the real numbers, Z the integers, Z− the negative integers, and Z+ the nonnegative integers.

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STABILITY OF PERIODIC SOLUTIONS OF FIRST-ORDER DIFFERENCE EQUATIONS LYING BETWEEN LOWER AND UPPER SOLUTIONS ALBERTO CABADA, VICTORIA OTERO-ESPINAR, ´ AND DOLORES RODRIGUEZ-VIVERO Received 8 January 2004 and in revised form 2 September 2004 We prove that if there exists α ≤ β, a pair of lower and upper solutions of the first-order discrete periodic problem ∆u(n) = f (n,u(n)); n ∈ IN ≡ {0,...,N − 1}, u(0) = u(N), with f a continuous N-periodic function in its first variable and such that x + f (n,x) is strictly increasing in x, for every n ∈ IN , then, this problem has at...

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PERIODIC SOLUTIONS OF NONLINEAR SECOND-ORDER DIFFERENCE EQUATIONS ´ JESUS RODRIGUEZ AND DEBRA LYNN ETHERIDGE Received 6 August 2004 We establish conditions for the existence of periodic solutions of nonlinear, second-order difference equations of the form y(t + 2) + by(t + 1) + cy(t) = f (y(t)), where c = 0 and f : R → R is continuous. In our main result we assume that f exhibits sublinear growth and that there is a constant β 0 such that u f (u) 0 whenever |u| ≥ β. For such an equation we prove that if N is an odd...

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PERIODIC SOLUTIONS OF A DISCRETE-TIME DIFFUSIVE SYSTEM GOVERNED BY BACKWARD DIFFERENCE EQUATIONS BINXIANG DAI AND JIEZHONG ZOU Received 22 November 2004 and in revised form 16 January 2005 A discrete-time delayed diffusion model governed by backward difference equations is investigated. By using the coincidence degree and the related continuation theorem as well as some priori estimates, easily verifiable sufficient criteria are established for the existence of positive periodic solutions. 1.

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ON THE RECURSIVE SEQUENCE E. CAMOUZIS, R. DEVAULT, AND G. PAPASCHINOPOULOS Received 12 January 2004 and in revised form 29 May 2004 Our aim in this paper is to investigate the boundedness, global asymptotic stability, and periodic character of solutions of the difference equation xn+1 = (γxn−1 + δxn−2 )/(xn + xn−2 ), n = 0,1,..., where the parameters γ and δ and the initial conditions are positive real numbers. 1.

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PERIODIC SOLUTIONS FOR A COUPLED PAIR OF DELAY DIFFERENCE EQUATIONS GUANG ZHANG, SHUGUI KANG, AND SUI SUN CHENG Received 31 January 2005 and in revised form 24 March 2005 Based on the fixed-point index theory for a Banach space, positive periodic solutions are found for a system of delay difference equations. By using such results, the existence of nontrivial periodic solutions for delay difference equations with positive and negative terms is also considered. 1.

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FIRST- AND SECOND-ORDER DYNAMIC EQUATIONS WITH IMPULSE F. M. ATICI AND D. C. BILES Received 3 December 2004 and in revised form 11 February 2005 We present existence results for discontinuous first- and continuous second-order dynamic equations on a time scale subject to fixed-time impulses and nonlinear boundary conditions. 1. Introduction We first briefly survey the recent results for existence of solutions to first-order problems with fixed-time impulses. Periodic boundary conditions using upper and lower solutions were considered in [19], using degree theory.

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RATE OF CONVERGENCE OF SOLUTIONS OF RATIONAL DIFFERENCE EQUATION OF SECOND ORDER ˇ ´ ´ S. KALABUSIC AND M. R. S. KULENOVIC Received 13 August 2003 and in revised form 7 October 2003 We investigate the rate of convergence of solutions of some special cases of the equation xn+1 = (α + βxn + γxn−1 )/(A + Bxn + Cxn−1 ), n = 0,1,..., with positive parameters and nonnegative initial conditions. We give precise results about the rate of convergence of the solutions that converge to the equilibrium or period-two solution by using Poincar´ ’s e theorem and an improvement of Perron’s...

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POSITIVE PERIODIC SOLUTIONS FOR NONLINEAR DIFFERENCE EQUATIONS VIA A CONTINUATION THEOREM GEN-QIANG WANG AND SUI SUN CHENG Received 29 August 2003 and in revised form 4 February 2004 Based on a continuation theorem of Mawhin, positive periodic solutions are found for difference equations of the form yn+1 = yn exp( f (n, yn , yn−1 ,..., yn−k )), n ∈ Z. 1. Introduction There are several reasons for studying nonlinear difference equations of the form yn+1 = yn exp f n, yn , yn−1 ,... , yn−k , n ∈ Z = {0, ±1, ±2,... }, (1.1) where f = f (t,u0 ,u1...

10p sting12 10-03-2012 31 3   Download

Objectives: -To help Ss revise the grammar - To check Ss’ knowlegde. - To make Ss start the lesson of 8th form more easily. II. Preparation: - Text book III. Teaching procedure 1. Organization: - Date: ................8A1:........... ................8A2:............ 2. Oral test: - T checks the preparation of Ss 3. New lesson: A. Warm- up: - Ss play the game : Hangman B. Presentation:  Revision: + Grammar: - Ss list the tense they have leant. - Ss present the uses of each tense. - T gives some examples to make clear. - Ss practice with the exercise given.

5p chenxanh_1 20-09-2011 74 5   Download

Objectives: - Further practice on the reflexive pronouns, the modals and Why - Because. . II. Preparation: - Textbook. III. Teaching procedure: 1. Organization: 2. Oral test: - Homework correction. 3. New lesson: A. Warm- up: String: - Give the word and ask Ss to form another word by taking the last letter of the previous word. Example: English - high - hello - on -.............. B. Presentation: a. The modals: have to / must: - Ss read the dialogue between Nam and Mrs Vui again and find out the sentences which contain the modal: have to.

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3p songngoc 12-03-2009 1278 214   Download