- #1
V0ODO0CH1LD
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What is the vector space under consideration when we say that a linear differential equation is of the form
[tex] Dy=f [/tex]
where the differential operator D is a linear operator? What is its underlying field?
Also, is the Fourier series just an expansion (for a subspace of this vector space) in the "sine and cosine basis"?
[tex] Dy=f [/tex]
where the differential operator D is a linear operator? What is its underlying field?
Also, is the Fourier series just an expansion (for a subspace of this vector space) in the "sine and cosine basis"?