On the computability of graphons

التفاصيل البيبلوغرافية
العنوان: On the computability of graphons
المؤلفون: Ackerman, Nathanael L., Avigad, Jeremy, Freer, Cameron E., Roy, Daniel M., Rute, Jason M.
سنة النشر: 2018
المجموعة: Computer Science
Mathematics
مصطلحات موضوعية: Mathematics - Logic, Computer Science - Logic in Computer Science, Mathematics - Combinatorics, Mathematics - Probability
الوصف: We investigate the relative computability of exchangeable binary relational data when presented in terms of the distribution of an invariant measure on graphs, or as a graphon in either $L^1$ or the cut distance. We establish basic computable equivalences, and show that $L^1$ representations contain fundamentally more computable information than the other representations, but that $0'$ suffices to move between computable such representations. We show that $0'$ is necessary in general, but that in the case of random-free graphons, no oracle is necessary. We also provide an example of an $L^1$-computable random-free graphon that is not weakly isomorphic to any graphon with an a.e. continuous version.
Comment: 24 pages, 1 figure
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1801.10387
رقم الأكسشن: edsarx.1801.10387
قاعدة البيانات: arXiv