My Math Forum Operator Fundamental solution

 Applied Math Applied Math Forum

 December 19th, 2017, 09:28 AM #1 Newbie   Joined: Oct 2015 From: London Posts: 22 Thanks: 0 Operator Fundamental solution
 December 21st, 2017, 06:56 AM #2 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 896 If $x> \xi$ then $|x- \xi|= x- \xi$ and $\frac{d^2|x-\xi|}{dx}= \frac{d^2(x- \xi)}{dx}= 0$. If $x< \xi$ then $|x- \xi|= -x+ \xi$ and $\frac{d^2|x-\xi|}{dx}= \frac{d^2(-x+\xi)}{dx}= 0$. The derivative, and so the second derivative, is not defined at $x= \xi$. Now, what is the definition of "fundamental solution"? Last edited by Country Boy; December 21st, 2017 at 06:59 AM.

 Tags fundamental, operator, solution

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post opentojoin Elementary Math 1 April 14th, 2015 09:25 AM John Do Real Analysis 7 September 16th, 2013 05:33 AM trsolaris Economics 2 August 5th, 2009 07:44 PM michaelbriech Applied Math 0 April 21st, 2009 04:42 AM Nusc Real Analysis 4 March 24th, 2009 01:34 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top