Differential Equations Problems Page

These problems pages are part of the Electronic Journal of Differential Equations. Here you can read problems proposed by others and solutions provided by readers or the editors.

You can submit a problem for these pages by emailing it to

Phil Korman
or
Steve Pelikan
or
Dieter Schmidt

Include simple TeX/LaTeX/AMSTeX/LAMSTeX in your letter, or send a plain text file attachement that is a tex/latex/amstex/lamstex file. Please do NOT use special macros or LaTeX definitions. Please do NOT send files in other formats (such as dvi, ps, pdf).

You can also submit solutions by email to the above addresses.

A star (*) following the problem number indicates that neither the proposer nor the editors have the solution to the problem.


Current Problems Submit solutions by December 31, 2008.


Inequalities for Sobolev Integrals


(2008-1) ( Proposed by Stepan A. Tersian, Department of Mathematical Analysis, University of Rousse, 8 Studentska, 7017 Rousse, Bulgaria.).



Statement of the Problem


Plasmonic Resonances of a Pair of Touching Dielectric Spheres


(2008-2)* ( Proposed by Mikko Pitkonen, Department of Radio Science and Engineering, Helsinki University of Technology, P.O. Box 3000, 02015 HUT Finland).



Statement of the Problem



Existence of Heteroclinic Orbit for a Planar 2-dimensional Dynamical System


(2008-3)* ( Proposed by Xijun Deng, School of Information and Mathematics, Yangtze University, Jingzhou, Hubei 434023, China).



Statement of the Problem





Previous Problems with Solutions


Previous Problems