Ross reversal: One to one, one to two, or two to two?
نویسندگان
چکیده
منابع مشابه
Two-to-one structures
We investigate computability-theoretic properties of computable structures with single unary functions f such that, for every x in the image, f−1(x) has exactly two elements, which we call 2:1 structures. We also investigate structures for which f−1(x) has either exactly two or zero elements, which we call (2,0):1 structures. In particular, we are interested in the complexity of isomorphisms be...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2018
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2017.10.061