Elementary Differential Equations With Boundary Value ProblemsWilliam F.
TrenchPDF  806 Pages  EnglishThis book explains the following topics: First Order Equations, Numerical
Methods, Applications of First Order Equations1em, Linear Second Order
Equations, Applcations of Linear Second Order Equations, Series Solutions of
Linear Second Order Equations, Laplace Transforms, Linear Higher Order
Equations, Linear Systems of Differential Equations, Boundary Value Problems and
Fourier Expansions, Fourier Solutions of Partial Differential Equations,
Boundary Value Problems for Second Order Linear Equations.

Introduction to Differential EquationsJeffrey
R. ChasnovPDF  128 Pages  EnglishThis book covers the following topics: Introduction to odes,
Firstorder odes, Secondorder odes, constant coefficients, The Laplace
transform, Series solutions, Systems of equations, Nonlinear differential
equations, Partial differential equations.

Numerical Solution of Differential EquationsUniversity of OxfordOnline  NA Pages  EnglishThis note
gives an understanding of numerical methods for the solution of ordinary and
partial differential equations, their derivation, analysis and applicability.

Ordinary and Partial Differential EquationsLawrence
Schovanec And David GilliamOnline  NA Pages  EnglishThis note explains the following topics: Existence
and Uniqueness, Systems, Stability, SturmLiouville Theory, First Order,
QuasiLinear, Classification, Hyperbolic Problems, Elliptic Problems, Parabolic
Problems.

Notes on Partial Differential EquationsJohn K. HunterPDF  224 Pages  EnglishThis book covers
the following topics: Laplace's equations, Sobolev spaces, Functions of one
variable, Elliptic PDEs, Heat flow, The heat equation, The Fourier transform,
Parabolic equations, Vectorvalued functions and Hyperbolic equations.

Differential equations by Harry BatemanHarry BatemanOnline  320 Pages  EnglishHarry Bateman was a
famous English mathematician. In writing this book he had endeavoured to supply
some elementary material suitable for the needs of students who are studying the
subject for the first time, and also some more advanced work which may be useful
to men who are interested more in physical mathematics than in the developments
of differential geometry and the theory of functions. The chapters on partial
differential equations have consequently been devoted almost entirely to the
discussion of linear equations.

Mathematical Methods For Partial Differential EquationsJohn Henry HeinbockelOnline  NA Pages  EnglishThese
are the sample pages from the textbook. Topics Covered: Partial differential equations, Orthogonal functions, Fourier Series, Fourier
Integrals, Separation of Variables, Boundary Value Problems, Laplace Transform,
Fourier Transforms, Finite Transforms, Green's Functions and Special Functions.

Ordinary differential equations an elementary text book with an introduction to Lie's theory of the group of one parameterJames MorrisOnline  264 Pages  EnglishThis
elementary textbook on Ordinary Differential Equations, is an attempt to present as much of the subject as is necessary for
the beginner in Differential Equations, or, perhaps, for the student of
Technology who will not make a specialty of pure Mathematics. On account of the
elementary character of the book, only the simpler portions of the subject have
been touched upon at all ; and much care has been taken to make all the
developments as clear as possible every important step being illustrated by easy
examples.

Harmonic Analysis and Partial Differential Equations 
Integral And Differential EquationsProfessor
Jim HerodOnline  NA Pages  EnglishThis book covers the following topics: Geometry and a Linear Function,
Fredholm Alternative Theorems, Separable Kernels, The Kernel is Small, Ordinary
Differential Equations, Differential Operators and Their Adjoints, G(x,t) in the
First and Second Alternative and Partial Differential Equations.

Linear Partial Differential Equations and Fourier TheoryMarcus
PivatoPDF  619 Pages  EnglishThis is a textbook for an introductory course on linear partial
differential equations (PDEs) and initial/boundary value problems (I/BVPs). It
also provides a mathematically rigorous introduction to Fourier analysis
which is the main tool used to solve linear PDEs in Cartesian coordinates.

Difference Equations to Differential EquationsDan
Sloughter, Furman UniversityOnline  NA Pages  EnglishThis book covers the following
topics: Sequences, limits, and difference equations, Functions and their properties,
Best affine approximations, Integration, Polynomial approximations and Taylor
series, transcendental functions, The complex plane and Differential equations.

Ordinary Differential Equations and Dynamical SystemsGerald
TeschlPDF  364 Pages  EnglishThe aim of this book is to give a self contained introduction to the
field of ordinary differential equations with emphasis on the dynamical systems
point of view while still keeping an eye on classical tools as pointed out
before. Covered topics are: Newton’s equations, Classification of differential
equations, First order autonomous equations, Qualitative analysis of first order
equations, Initial value problems, Linear equations, Differential equations in
the complex domain, Boundary value problems, Dynamical systems, Planar dynamical
systems, Higher dimensional dynamical systems, Local behavior near fixed points,
Chaos, Discrete dynamical systems, Discrete dynamical systems in one dimension,
Periodic solutions, Chaos in higher dimensional systems.

Integral And Differential EquationsProfessor
Jim HerodOnline  NA Pages  EnglishThis note covers the following topics: Integral Equations, Ordinary
Differential Equations, Partial Differential Equations.


Partial Differential Equations ebookJ.
NearingPDF  25 Pages  EnglishThis note covers the following topics
related to Partial Differential Equations: The Heat Equation, Separation
of Variables, Oscillating Temperatures, Spatial Temperature Distributions, The
Heat Flow into the Box, Specified Heat Flow, Electrostatics, Cylindrical
Coordinates.

Ordinary Differential EquationsJ.
NearingPDF  33 Pages  EnglishThis note covers the following topics related to Ordinary
Differential Equations: Linear ConstantCoefficient, Damped Oscillator, Forced Oscillations, Series Solutions,
Trigonometry via ODE's, Green's Functions, Separation of Variables, Circuits,
Simultaneous Equations, Simultaneous ODE's, Legendre's Equation, Asymptotic
Behavior.

Partial Differential EquationsCleve
MolerPDF  21 Pages  EnglishThis note covers the following topics: Model Problems, finite Difference Methods, Matrix
Representation, Numerical Stability, The LShaped Membrane.

Partial Differential Equations pdfDavid
W. WalkerPDF  21 Pages  EnglishThis note covers the following topics: Model Problems, finite Difference Methods,
Matrix Representation, Numerical Stability, The LShaped Membrane.

Linear Differential EquationsL.
Boutet de MonvelPDF  26 Pages  EnglishThis note covers the following topics: Derivatives,
differential equations, partial differential equations, distributions, CauchyKowalewsky
theorem, heat equation, Laplace equation, Schrodinger equation, wave equation,
CauchyRiemann equations.


LINEAR DIFFERENTIAL EQUATIONS 
Entropy and Partial Differential Equations 
Monograph on quasilinear partial differential equations (EJDE) 
Hilbert Space Methods for Partial Differential Equations 
An Introduction to Stochastic Differential Equations 
Differential Equations (Dawkins P) 
Lectures Notes on Ordinary Differential Equations (Veeh J.A pdf) 
PDE From a Probability Point of View(Bass R.F pdf) 
Analysis Tools with Applications and PDE Notes 
Entropy and Partial Differential Equations(Evans L.C pdf) 
A PDE Primer (Showalter R.E) 
Partial Differential Equations of Mathematical Physics(Symes W.W pdf) 
Linear Algebra and Differential Equations 
Ordinary Differential Equations Sheldon 
Partial Differential Equations of Mathematical Physics 
Analytic differential equations 
Exterior Differential Systems and Euler Lagrange Partial Differential Equations 
Monograph on quasilinear partial differential equations 