User talk:Erlendd

Welcome!

Hello, Erlendd, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers:

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I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome!  Oleg Alexandrov (talk) 03:53, 29 March 2006 (UTC)

Fundamental lemma of calculus of variations

I removed your proof at that article, as it is wrong. To be correct, the function $h$ needs to be chosen in a very carefull manner, not any function would do.

The proof is fixable, but I am not sure it is worth the trouble. Wikipedia being an encyclopedia, proofs are not so much encouraged. Cheers, Oleg Alexandrov (talk) 03:53, 29 March 2006 (UTC)