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By the theory of least space of de Boor and Ron, there exists a projection $T_b$ from the local ring $\\mathcal{O}_{n,b}$ onto the space $Z_b$ of germs of elements of $Z$ at $b$. At general $b\\in U$, its kernel is an ideal and induces a structure of an Artinian algebra on $Z_b$. In particular, it holds at points where $k$-th jets of elements of $Z$ form a vector bundle for each $k\\le\\dim_{\\mathbb{C}}Z_b-1$. 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By the theory of least space of de Boor and Ron, there exists a projection $T_b$ from the local ring $\\mathcal{O}_{n,b}$ onto the space $Z_b$ of germs of elements of $Z$ at $b$. At general $b\\in U$, its kernel is an ideal and induces a structure of an Artinian algebra on $Z_b$. In particular, it holds at points where $k$-th jets of elements of $Z$ form a vector bundle for each $k\\le\\dim_{\\mathbb{C}}Z_b-1$. 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