Threefold extremal contractions of type (IA)
نویسندگان
چکیده
منابع مشابه
Completion of Hankel Partial Contractions of Extremal Type
We find concrete necessary and sufficient conditions for the existence of contractive completions of Hankel partial contractions of size 4×4 in the extremal case. Along the way we introduce a new approach that allows us to solve, algorithmically, the contractive completion problem for 4 × 4 Hankel matrices. As an application, we obtain a concrete example of a partially contractive 4× 4 Hankel m...
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ژورنال
عنوان ژورنال: Kyoto Journal of Mathematics
سال: 2011
ISSN: 2156-2261
DOI: 10.1215/21562261-1214393