| dbo:abstract |
(LF)-Räume sind eine in der Mathematik betrachtete Klasse von Vektorräumen. Abstrahiert man die Konstruktion gewisser Räume aus der Distributionstheorie, so wird man zwanglos auf den Begriff des (LF)-Raums geführt. Dabei handelt es sich um die Vereinigung einer aufsteigenden Folge von Fréchet-Räumen, was man auch als induktiven Limes von Fréchet-Räumen bezeichnet, woher der Name (LF)-Raum rührt. (de) In mathematics, an LF-space, also written (LF)-space, is a topological vector space (TVS) X that is a locally convex inductive limit of a countable inductive system of Fréchet spaces. This means that X is a direct limit of a direct system in the category of locally convex topological vector spaces and each is a Fréchet space. The name LF stands for Limit of Fréchet spaces. If each of the bonding maps is an embedding of TVSs then the LF-space is called a strict LF-space. This means that the subspace topology induced on Xn by Xn+1 is identical to the original topology on Xn.Some authors (e.g. Schaefer) define the term "LF-space" to mean "strict LF-space," so when reading mathematical literature, it is recommended to always check how LF-space is defined. (en) 数学における LF-空間（エルエフくうかん、英: LF-space）は、ベクトル空間の一類で、一口に言えばシュヴァルツ超函数の構成法を抽象化するものである。LF-空間の名は、それがフレシェ空間の増大列の合併（正確には、狭義の可算帰納極限と呼ばれるもの）になっていることに由来する (inductive Limit of F-space)。 (ja) |
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(LF)-Räume sind eine in der Mathematik betrachtete Klasse von Vektorräumen. Abstrahiert man die Konstruktion gewisser Räume aus der Distributionstheorie, so wird man zwanglos auf den Begriff des (LF)-Raums geführt. Dabei handelt es sich um die Vereinigung einer aufsteigenden Folge von Fréchet-Räumen, was man auch als induktiven Limes von Fréchet-Räumen bezeichnet, woher der Name (LF)-Raum rührt. (de) 数学における LF-空間（エルエフくうかん、英: LF-space）は、ベクトル空間の一類で、一口に言えばシュヴァルツ超函数の構成法を抽象化するものである。LF-空間の名は、それがフレシェ空間の増大列の合併（正確には、狭義の可算帰納極限と呼ばれるもの）になっていることに由来する (inductive Limit of F-space)。 (ja) In mathematics, an LF-space, also written (LF)-space, is a topological vector space (TVS) X that is a locally convex inductive limit of a countable inductive system of Fréchet spaces. This means that X is a direct limit of a direct system in the category of locally convex topological vector spaces and each is a Fréchet space. The name LF stands for Limit of Fréchet spaces. (en) |
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