Topological properties

The contents of this book focus on the recent investigations in molecular biology where applications of topology seem to be very stimulating. The volume is based on the talks and lectures given by participants of the threemonth program “Topology in Condensed Matter”, which was held in the Max Planck Institut fur Physik komplexer Systeme, Dresden, Germany, 8May–31 July 2002, under the scientific direction of Professors M. Kl´eman, S. Novikov and myself.
246p chuyenphimbuon 21072012 41 12 Download

Collection of research reports best university in 2008 honored the author: 1. Housing Ta Khac Luong Quoc Tuyen Nguyen Thi Thu Ha, Le Thi Ngoc, the probability measure functor preserving some topological properties that ... science (Scientia, in Latin, meaning "knowledge" or "understanding") is the efforts to implement the invention, and increased knowledge of the human understanding of how the operation of the physical world around them.
6p phalinh14 07082011 47 5 Download

Power electronic converters (PECs) are static devices, without any movable parts, that convert electric energy of one set of properties into electric energy of another, different set of properties. The properties that are changed by the action of the converter are one or more of the following: number of phases, frequency, and voltage rms (or average, in the DC case) value. Thus any power electronic converter is essentially a transformer in a broad sense. Action of a power electronic converter is illustrated in Fig....
56p liemthanh 15122009 87 23 Download

Let X be a projective manifold and f : X → X a rational mapping with large topological degree, dt λk−1 (f ) := the (k − 1)th dynamical degree of f . We give an elementary construction of a probability measure µf such that d−n (f n )∗ Θ → µf for every smooth probability measure Θ on X. We show t that every quasiplurisubharmonic function is µf integrable. In particular µf does not charge either points of indeterminacy or pluripolar sets, hence µf is f invariant with constant jacobian f ∗ µf = dt µf...
20p noel_noel 17012013 25 4 Download

In this paper we study the extending of the Matheron theorem for general topological spaces. We also show some examples about the spaces F such that the missandhit topology on those spaces are unseparated or nonHausdorff. 1. Introduction The Choquet theorem (see [1, 2]) plays very importance role in theory of random sets. The proof of this theorem is based on the Matheron theorem and especially, the locally compact property of the space F , where F is a space of all close subsets of a given space E and F is equipped with the missandhit topology (see [1]). ...
7p tuanlocmuido 19122012 18 1 Download

The SelfOrganizing Map (SOM) is a neural network algorithm, which uses a competitive learning technique to train itself in an unsupervised manner. SOMs are different from other artificial neural networks in the sense that they use a neighborhood function to preserve the topological properties of the input space and they have been used to create an ordered representation of multidimensional data which simplifies complexity and reveals meaningful relationships. Prof. T. Kohonen in the early 1980s first established the relevant theory and explored possible applications of SOMs. ...
0p bi_bi1 13072012 45 17 Download

The software crisis is usually defined in terms of projects running over budget and over schedule, though an equally important aspect is the poor quality of software measured in terms of its correctness, reliability and performance. The consequences of releasing faulty software into service may be devastating in safetyrelated applications, telecommunications and other areas. When the USA telecommunications system failed and half of the nation was isolated, lives and property were clearly put at risk....
18p tienvovan 11092010 45 5 Download

The provinces have primary responsibility for property law in Canada. In all provinces except Québec, property law has developed through the English commonlaw process. In Québec, property law is governed by the Civil Code of Québec (which is derived from the Napoleonic Code.) There is no constitutional protection for property rights in Canada. Consequently, property can be expropriated by government and quasigovernmental authorities, but, appropriate compensation must be paid.
15p quaivatxanh 01122012 27 4 Download

The book before the reader is devoted to an exposition of results of investigations carried out mainly over the last 1015 years concerning certain questions in the theory of quasiconformal mappings. The principal objects of investigationmappings with bounded distortion are a kind of nspace analogue of holomorphic functions. As is known, every holomorphic function is characterized geometrically by the fact that the niapping of a planar domain it implements is conformal. In the nspace case the condition of conformality singles out a very narrow class of mappings.
380p hotmoingay 04012013 15 2 Download

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí toán học quốc tế đề tài: Algebraic properties of edge ideals via combinatorial topology...
24p thulanh8 19092011 16 1 Download

This is the second book containing examples from the Theory of Complex Functions. The first topic will be examples of the necessary general topological concepts. Then follow some examples of complex functions, complex limits and complex line integrals. Finally, we reach the subject itself, namely the analytic functions in general. The more specific properties of these analytic functions will be given in the books to follow.
126p tuanloc_do 03122012 14 1 Download

Mobile Ad Hoc Network (MANET) is a collection of communication devices or nodes that wish to communicate without any fixed infrastructure and predetermined organization of available links. The nodes in MANET themselves are responsible for dynamically discovering other nodes to communicate. Although the ongoing trend is to adopt ad hoc networks for commercial uses due to their certain unique properties, the main challenge is the vulnerability to security attacks.
48p monkey68 13032009 235 78 Download

Given a compact four dimensional manifold, we prove existence of conformal metrics with constant Qcurvature under generic assumptions. The problem amounts to solving a fourthorder nonlinear elliptic equation with variational structure. Since the corresponding Euler functional is in general unbounded from above and from below, we employ topological methods and minmax schemes, jointly with the compactness result of [35]. 1.
48p dontetvui 17012013 30 6 Download

We prove the topological (or combinatorial) rigidity property for real polynomials with all critical points real and nondegenerate, which completes the last step in solving the density of Axiom A conjecture in real onedimensional dynamics. Contents 1. Introduction 1.1. Statement of results 1.2. Organization of this work 1.3. General terminologies and notation 2. Density of Axiom A follows from the Rigidity Theorem 3. Derivation of the Rigidity Theorem from the Reduced Rigidity Theorem
94p noel_noel 17012013 13 5 Download

A back propagation artificial neural net has been trained to estimate the activity values of a set of 18 NalkylNacyl aminoamide derivatives from the results of molecular mechanics and RHF/PM3/SCF MO semiempirical calculations. The input descriptors include molecular properties such as the partition coefficient P, 3d structure dependent parameters, charge dependent parameters, and topological descriptors.
7p uocvongxua10 18092015 7 2 Download

Crystallins are the major proteins of a mammalian eye lens. The topologically similar eye lens proteins,b and ccrystallins, are the prototype and founding members of the bccrystallin superfamily. bcCrystallins have until recently been regarded as structural proteins. However, the calciumbinding properties of a few members and the potential role ofbccrystallins in fertility are being investigated.
13p media19 04032013 10 1 Download