Basis in invariant subspace of analytical functions
نویسندگان
چکیده
منابع مشابه
On linear operators with an invariant subspace of functions
Let us denote V, the finite dimensional vector spaces of functions of the form ψ(x) = pn(x)+ f(x)pm(x) where pn(x) and pm(x) are arbitrary polynomials of degree at most n andm in the variable x while f(x) represents a fixed function of x. Conditions onm,n and f(x) are found such that families of linear differential operators exist which preserve V. A special emphasis is accorded to the cases wh...
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ژورنال
عنوان ژورنال: Ufa Mathematical Journal
سال: 2018
ISSN: 2074-1863,2074-1871
DOI: 10.13108/2018-10-2-58