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Date: 1-6-2021
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Date: 22-6-2021
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Date: 12-8-2021
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For ,
an open subset of
,
and
, the Sobolev space
is defined by
![]() |
(1) |
where ,
, and the derivatives
are taken in a weak sense.
When endowed with the norm
![]() |
(2) |
is a Banach space.
In the special case ,
is denoted by
. This space is a Hilbert space for the inner product
![]() |
(3) |
Sobolev spaces play an important role in the theory of partial differential equations.
REFERENCES:
Mazja, V. Sobolev Spaces. New York: Springer-Verlag, 1985.
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