61. Electronic Journal Of Differential Equations Full text available in DVI, PDF, PS and TeX formats. Searchable index. http://ejde.math.txstate.edu/

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62. DIE differential and Integral equations will publish carefully selected research papers on mathematical aspects of differential and integral equations and on http://www.aftabi.com/DIE/die.html

63. International Press: Dynamics Of Partial Differential Equations Dynamics of Partial differential equations publishes novel results in the areas of partial differential equations and dynamical systems in general, http://www.intlpress.com/DPDE/

International Press Home About Journals Books ... Contact Us Journals AJM Asian Journal of Mathematics ATMP Advances in Theoretical and Mathematical Physics ... Statistics and Its Interface Journals Dynamics of Partial Differential Equations Dynamics of Partial Differential Equations Editor: Y. Charles Li, S.-T. Yau ISSN: 1548-159X Issues: 4/year Dynamics of Partial Differential Equations publishes novel results in the areas of partial differential equations and dynamical systems in general, and priority will be given to dynamical system theory or dynamical aspects of partial differential equations. Both original and expository articles are included. Browse Journal Editorial Board Submissions Subscribe/Renew Indexing and Reviews: Dynamics of Partial Differential Equations is indexed by: Science Citation Index (SCI) Dynamics of Partial Differential Equations is reviewed by: American Mathematical Society, MathSciNet: Mathematical Reviews ZentralBlatt MATH To Subscribe to or Renew Subscriptions: Our online catalog requires a recent version of Adobe Reader. [

64. Differential Equations A differential equation is an algebraic relation between variables that includes the rates of change of the variables as well as their instantaneous values. http://mysite.du.edu/~jcalvert/math/newdiff.htm

Differential Equations It is not easy to solve differential equations, and often impossible, but the study is rewarding A differential equation is an algebraic relation between variables that includes the rates of change of the variables as well as their instantaneous values. It is an excellent way to express many physical laws. Newton's Law, f = mx" is an example. Here, the prime stands for differentiation with respect to the independent variable, here the time, d/dt, and the double prime means the second derivative of the position coordinate, x, which is the acceleration . The constant m is the mass of the particle, and f is the force, which may depend on many things. If f depends on the position x and the velocity x', as well as on the time, we find the differential equation mx" = f(x,x',t). The voltage drop across an inductor of value L is given by v = Li', where i' is the rate of change of the current, and the voltage drop across a capacitance C is v = q/C, where q is the charge on the capacitor. This gives v' = i/C, another differential relation. A circuit of R, L and C in series gives the equation e = Ri + Li' + q/C, or e' = Li" + Ri' + (1/C)i, a differential equation. The fundamental laws of electromagnetism, Maxwell's Equations, are expressed as differential equations, and differential equations also describe relations in quantum mechanics. In fact, there are few fields of physics and its applications that do not rely on differential equations to express their fundamental relations.

65. Electronic Journal Of Qualitative Theory Of Differential Equations Free research papers on differential equations. http://www.math.u-szeged.hu/ejqtde/

Welcome to the Electronic Journal of Qualitative Theory of Differential Equations Journal provider: Bolyai Institute, University of Szeged ISSN: HU ISSN 1417-3875 Editors in Chief: T. A. Burton Southern Illinois University at Carbondale, USA L. Hatvani Bolyai Institute, University of Szeged, Hungary Managing Editor: G. Makay Bolyai Institute, University of Szeged, Hungary If the connection is slow then try one of our mirror sites or use e-mail to access the paper on our server. General information: Purpose of this journal List of editors Subscription Information for authors Current volumes of the journal: Monograph Series Proceedings of the Colloquiums on the Qualitative Theory of Differential Equations: 6'th Colloquium 7'th Colloquium Viewing the papers: Downloading and viewing the papers Viewing and printing DVI files Viewing and printing PostScript files Viewing and printing PDF files If you have comments or suggestions on these WWW pages, then please feel free to contact us at the e-mail address ejqtde@server.math.u-szeged.hu

66. Proyecciones (Antofagasta) - In this work we present a way to find asymptotic formulas for some solutions of second order linear differential equations with a retarded functional http://www.scielo.cl/scielo.php?pid=S0716-09172007000100005&script=sci_arttext

67. Wiley InterScience :: JOURNALS :: Numerical Methods For Partial Differential Equ www.interscience.wiley.com/jpages/0749159X/ - Similar pages Directory of open access journalsKeywords difference equations, differential equations . Electronic Journal of Qualitative Theory of differential equations ISSN 14173875 http://www.interscience.wiley.com/jpages/0749-159X/

Skip to Content If you are seeing this message, you may be experiencing temporary network problems. Please wait a few minutes and refresh the page. If the problem persists, you may wish to report it to your local Network Manager. It is also possible that your web browser is not configured or not able to display style sheets. In this case, although the visual presentation will be degraded, the site should continue to be functional. We recommend using the latest version of Microsoft or Mozilla web browser to help minimise these problems. Wiley InterScience HOME ABOUT US CONTACT US ... HELP JOURNALS Home Mathematics and Statistics Numerical Methods Numerical Methods for Partial Differential Equations See Also: Numerical Methods for Partial Differential Equations 1985-1995 What is RSS? Get Sample Copy Recommend to Your Librarian ... Print this page Journal Home Product Information Editorial Board For Authors Subscribe ... Contact Issue Navigation Early View Current Issue ALL ISSUES (1996 - 2008) Previous Issue Next Issue Current Issue Volume 24 Issue 1 (January 2008) Combined finite difference and spectral methods for the numerical solution of hyperbolic equation with an integral condition (p 1-8) Mehdi Ramezani, Mehdi Dehghan, Mohsen Razzaghi

68. Interactive Learning In Calculus And Differential Equations With Applications A classroom learning environment based on Mathematics notebooks. http://www.ma.iup.edu/projects/CalcDEMma/Summary.html

Interactive Learning in Calculus and Differential Equations with Applications Click on this picture for a description of how it was generated. The Mathematics Department at Indiana University of Pennsylvania (IUP) established a computerized learning environment, consisting of a classroom with 31 Macintosh Centris 650s and a laboratory with 12 Macintosh LCs, all equipped with Mathematica . Mathematica's notebook feature enables science students to actively learn calculus and differential equations with guided discovery and exploration. The project was funded through a National Science Foundation Instrumentation and Laboratory Improvement grant, number DUE-9351896. IUP's project has several significant attributes. The Mathematics Department is fully implementing this curriculum in all sections of its science calculus sequence and in the two-semester differential equations sequence. Eleven faculty, comprising approximately one third of IUP's mathematics faculty, are coinvestigators. The curricular revisions are being coordinated with the science departments at IUP, who are also integrating active learning and technology in their courses. This collaboration, based on common pedagogical goals and software, will bring more scientific applications into mathematics courses and strengthen the use of mathematics in science courses. All students in the Mathematics Department are involved. Mathematics and Applied Mathematics majors are required to take Differential Equations, and Mathematics Education majors have a unit devoted to the project in the teacher preparation course, Computers and Calculators in Secondary Mathematics.

69. Mathlets: Differential Equations And Initial Value Problems The particular solution function y(x) to the differential equation satisfying the given initial values will be graphed in blue. http://cs.jsu.edu/mcis/faculty/leathrum/Mathlets/diffeq.html

Differential Equations and Initial Value Problems Graphs solution functions y x ) to the differential equation y f x y ), with initial value given by y x y How to use Examples Other Notes How to Use Enter the function f x y ) in the text input field marked " y f x y Example y y Click the " Graph " button (this button also refreshes the graph) Choose the initial value point ( x y Example: x y This can be done either of two ways: Enter the values directly into the text fields marked " x =" and " y =" and click the " Graph " button to refresh Use the mouse to click and drag the red point on the graph. To erase the graph and all input fields, click the " Clear " button The text input field marked " y f x y )=" can accept a wide variety of expressions to represent functions, and the buttons under the graph allow various manipulations of the graph coordinates. The text input fields marked " x =" and " y =" can accept any decimal numbers. Examples Function of x only: y '=cos( x Exponential Growth: y y Exponential Decay: y y Logistics Growth: y y y Semicircles: y x y Radial Lines: y y x Other Notes The particular solution function y x ) to the differential equation satisfying the given initial values will be graphed in blue The particular solution function y x ) is graphed by determining a numerical approximation to the function using the classical (order four) Runge-Kutta Method (which, in the case where the function

70. IDEA, Internet Differential Equations Activities IDEA. Internet differential equations Activities. What is IDEA? Who is IDEA? Current Projects Software. Animated IDEA Graphic. Helpful Links http://www.sci.wsu.edu/idea/

IDEA Internet Differential Equations Activities What is IDEA? Who is IDEA? Current Projects Software ... kcooper@math.wsu.edu Number of accesses since April 26, 1996: This project is supported, in part, by the National Science Foundation Opinions expressed are those of the authors, and not necessarily those of the Foundation. This project is supported, in part, by Brooks/Cole Publishing Opinions expressed are those of the authors, and not necessarily those of the Publishers.

71. Project Links | Differential Equations Index This module on lake pollution is about using differential equations to model lake pollution. To model lake pollution can be complicated, because there are http://links.math.rpi.edu/webhtml/DEindex.html

Differential Equations Modules To find out more about what the version numbers mean, click on any of the indicators. Down to the Mechanical Oscillations Modules Boundary Value Problems for ODEs writeVersionGraphic("BoundaryValue"); v writeVersionNumber("BoundaryValue"); Introduction to boundary value problems and eigenvalue problems for ODEs in the context of buckling,heat conduction/diffusion,vibration problems. Intro to Fourier method. Authors: Richard Weinacht, George Hsiao, B. Lenhoff, Andrew Zydney, Jack R. Vinson Keywords: differential equations, heat transfer, diffusion, strength of materials, buckling, heat conduction, vibrating beam, vibrating string, BVP, eigenvalue Learning Level: College Platform: Project Links base technical requirements Applets: [ Full Metadata ] Continuously Stirred Reactor writeVersionGraphic("CSTR"); v writeVersionNumber("CSTR"); The most important unit operation in a chemical process is generally a chemical reactor. Chemical reactions are either exothermic (release energy) or endothermic (require energy input) and therefore require that energy either be removed or added to the reactor for a constant temperature to be maintained. Exothermic reactions are the most interesting systems to study because of potential safety problems (rapid increases in temperature, sometimes called "ignition" behavior) and the possibility of exotic behavior such as multiple steady-states (for the same value of the input variable there may be several possible values of the output variable). In this module we consider a perfectly mixed, continuously stirred tank reactor (CSTR).

72. Differential Equation - Wikipedia, The Free Encyclopedia A differential equation is a mathematical equation for an unknown function of one or several variables that relates the values of the function itself and of http://en.wikipedia.org/wiki/Differential_equation

Differential equation From Wikipedia, the free encyclopedia Jump to: navigation search A differential equation is a mathematical equation for an unknown function of one or several variables that relates the values of the function itself and of its derivatives of various orders. Differential equations play a prominent role in engineering physics economics and other disciplines. Visualization of airflow into a duct modelled using the Navier-Stokes equations , a set of partial differential equations. Contents Introduction Directions of study Types of differential equations Connection to difference equations ... edit Introduction Differential equations arise in many areas of science and technology; whenever a deterministic relationship involving some continuously changing quantities (modeled by functions) and their rates of change (expressed as derivatives) is known or postulated. This is well illustrated by classical mechanics , where the motion of a body is described by its position and velocity as the time varies. Newton's Laws allow one to relate the position, velocity, acceleration and various forces acting on the body and state this relation as a differential equation for the unknown position of the body as a function of time. In many cases, this differential equation may be solved, yielding the law of motion. Differential equations are mathematically studied from several different perspectives, mostly concerned with their

73. MR1401650 So, Joseph W.-H. And Yu, J. S. And Chen, Ming-Po Joseph 72 1966 285288 MR0221047 100 Cache/Co/Cooke,Functional,Bull*,1966,1967 5 Cooke, K. L. Asymptotic theory for the delay-differential equation http://www.math.sci.kobe-u.ac.jp/~fe/xml/mr1401650.xml

So, Joseph W.-H. and Yu, J. S. and Chen, Ming-Po Joseph W.-H. SO, J. S. YU and Ming-Po CHEN Funkcialaj Ekvacioj. Serio Internacia http://fe.math.kobe-u.ac.jp/FE/Free/vol39/fe39-1-1.pdf http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE35-40-en_KML/fe39-001-017/fe39-001-017.pdf http://www.ams.org/mathscinet-getitem?mr=MR1401650 SO, Joseph W.-H.; YU, J. S.; CHEN, Ming-Po SO, Joseph W.-H.; YU, J. S.; CHEN, Ming-Po Atkinson, F. V.; Haddock, J. R. J. Math. Anal. Appl. Cache/At/Atkinson,asymptotic,J*,1983,1984 Bellman, R. Bull. Amer. Math. Soc. Data is not found in MathSci. Cache/Be/Bellman,Functional,Bull*,1965,1966 Burton, T. A.; Haddock, J. R. J. Math. Anal. Appl. Cache/Bu/Burton,x''(t)+a(t)f(x(t-r(t)))=0,J*,1976,1977 Cooke, K. L. Bull. Amer. Math. Soc. Cache/Co/Cooke,Functional,Bull*,1966,1967 Cooke, K. L. J. Math. Anal. Appl. Cache/Co/Cooke,u'(t)=-au(t-r(u(t))),J*,1967,1968 Cooke, K. L. J. Differential Equations Cache/Co/Cooke,functional,J*,1970,1971 Cooke, K. L.; Yorke, J. A. Math. Biosci. Cache/Co/Cooke,questions,Math*,1973,1974 Gao, G.

74. PRoblem With Differential Form Of Maxwell's Third Equation? Page 2PRoblem with differential form of Maxwell s third equation? Classical Physics. http://www.physicsforums.com/showthread.php?t=120518&page=2

75. Exponential Stability In A Scalar Functional Differential Equation We establish a criterion for the global exponential stability of the zero solution of the scalar retarded functional differential equation x (t)=L(xt)+g(t http://www.hindawi.com/GetArticle.aspx?doi=10.1155/JIA/2006/37195&e=ref

76. Differential Equation -- Britannica Online Encyclopedia major reference, definition of functions, mechanics, physical sciences, relativity theory, discriminants, history of mathematics, linear algebra, http://www.britannica.com/eb/topic-162910/differential-equation

Already a member? LOGIN Encyclopædia Britannica - the Online Encyclopedia Home Blog Advocacy Board ... Free Trial Britannica Online Content Related to this Topic Shopping New! Britannica Book of the Year The Ultimate Review of 2007. 2007 Britannica Encyclopedia Set (32-Volume Set) Revised, updated, and still unrivaled. New! Britannica 2008 Ultimate DVD/CD-ROM The world's premier software reference source. differential equation A selection of articles discussing this topic. Main article: differential equation major reference discriminants Discriminants also are defined for elliptic curves, finite field extensions, quadratic forms, and other mathematical entities. The discriminants of differential equations are algebraic equations that reveal information about the families of solutions of the original equations. history of mathematics Another field that developed considerably in the 19th century was the theory of differential equations. The pioneer in this direction once again was Cauchy. Above all, he insisted that one should prove that solutions do indeed exist; it is not a priori obvious that every ordinary differential equation has solutions. The methods that Cauchy proposed for these problems fitted naturally into his... linear algebra Representing vectors as arrows in two or three dimensions is a starting point, but linear algebra has been applied in contexts where this is no longer appropriate. For example, in some types of differential equations the sum of two solutions gives a third solution, and any constant multiple of a solution is also a solution. In such cases the solutions can be treated as vectors, and the set of...

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