求微分方程方面的英文文献急 急

Notes on Dix0berential Equations Preface
These are introductory notes on ordinary and partial dix0berential equations.Assumed background is calculus and a little physics.Linear algebra is not assumed,and is introduced here in four of the lectures.Those four lectures have been used in the Engineering Mathematics course at Cornell University for several years.The notes as a whole have not been used as a text,to my knowledge,but have been freely available for many years from my web page.The notes as written are quite close to lectures I have delivered while attempting to explain various textbooks to my students.
The notes contain about one third of the material of the typical dix0berential equations book,and are therefore concerned with only the most important ideas.The style of the notes is approximately that of the author's lectures,in that most ideas are taught by example,and that I view the ideas as being at least as important as the calculations.For fuller coverage,see any of the excellent books:
1.Agnew,Ralph Palmer,Dix0berential Equations,McGraw{Hill,1960
2.Hubbard,John H.,and West,Beverly H.,Dix0berential Equations,a Dynamical Systems Approach,Parts 1 and 2,Springer,1995 and 1996
3.Churchill,Ruel V.,Fourier Series and Boundary Value Problems,McGraw Hill,1941
Some of the exercises have the format What's rong with this?:::!Most of these
are errors taken from test papers of students in this class,so it could be quite benex0ccial to
study them.
Bob Terrell
January 1997
updated September 2005