Toronto Math Forum
APM3462015S => APM346Home Assignments => HA10 => Topic started by: Victor Ivrii on March 26, 2015, 03:10:41 PM

Consider distributions now. Calculate right from the definition
a. $x^3\delta''(x)$;
b. $x^2\delta''(x)$;
c. $x^2\delta '''(x)$.
The results may be written through $\delta$function or its derivatives of the smallest possible order.

My answer

Different answers. :\

Mark is completely correct. Chaojie gave a correct answer to b, correct but unfinished to a (he got $2x\delta$ but this is just $0$â€”see Mark's solution)