Long time error bounds for the wave equation on second order form

• Temporal error bounds for the wave equation expressed on second order form is investigated. By using the energy method, we show that, with appropriate choices of boundary condition, the time and space derivative of the error is bounded even for long times. No long time bound on the actual error can be obtained, although numerical experiments indicate that such a bound exist.

Ämnesord

NATURVETENSKAP  -- Matematik -- Beräkningsmatematik (hsv//swe)

NATURAL SCIENCES  -- Mathematics -- Computational Mathematics (hsv//eng)

Nyckelord

Error bounds

second order form

summation-by-parts

finite differences

simultaneous approximation terms

wave equation

Publikations- och innehållstyp

vet (ämneskategori)

rap (ämneskategori)