• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Dirac delta function

  • Thread starter danai_pa
  • Start date
i can't solve there problem, please help me

1) delta(y^2-a^2) = 1/absolute 2a[delta(y-a)+delta(y+a)]

2) f(y)delta(y-a) = f(a)delta(y-a)


Science Advisor
Homework Helper
Insights Author
Well,the first is really easy,you just need to apply the theory.

For the second,integrate both sides wrt "y" on an interval containing the point y=a.


Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving