Columbia subject headings:
Differential equations, Partial--Problems, exercises, etc.
Theory of distributions (Functional analysis)--Problems, exercises, etc.
Harvard subject headings:
Differential equations, Partial--Problems, exercises, etc.
Theory of distributions (Functional analysis)--Problems, exercises, etc.
Princeton subject headings:
Differential equations, Partial--Problems, exercises, etc.
Theory of distributions (Functional analysis)--Problems, exercises, etc.