Computably compact metric spaces
RG Downey, AG Melnikov - Bulletin of Symbolic Logic, 2023 - cambridge.org
We give a systematic technical exposition of the foundations of the theory of computably
compact metric spaces. We discover several new characterizations of computable …
compact metric spaces. We discover several new characterizations of computable …
[PDF][PDF] Effectively compact spaces
R Downey, AG Melnikov - Preprint, 2022 - homepages.ecs.vuw.ac.nz
We give a systematic technical exposition of the foundations of the theory of effectively
compact metric spaces. We discover several new characterizations of effective compactness …
compact metric spaces. We discover several new characterizations of effective compactness …
Computational complexity of classical solutions of partial differential equations
S Selivanova - Conference on Computability in Europe, 2022 - Springer
This paper provides a brief survey of recent achievements in characterizing computational
complexity of partial differential equations (PDEs), as well as computing solutions with …
complexity of partial differential equations (PDEs), as well as computing solutions with …
Computably and punctually universal spaces
R Bagaviev, II Batyrshin, N Bazhenov… - Annals of Pure and …, 2025 - Elsevier
We prove that the standard computable presentation of the space C [0, 1] of continuous real-
valued functions on the unit interval is computably and punctually (primitively recursively) …
valued functions on the unit interval is computably and punctually (primitively recursively) …
Primitive recursive reverse mathematics
N Bazhenov, M Fiori-Carones, L Liu… - Annals of Pure and Applied …, 2024 - Elsevier
We use a second-order analogy PRA 2 of PRA to investigate the proof-theoretic strength of
theorems in countable algebra, analysis, and infinite combinatorics. We compare our results …
theorems in countable algebra, analysis, and infinite combinatorics. We compare our results …
Effective presentations of mathematical structures
M Dorzhieva - 2024 - openaccess.wgtn.ac.nz
For several algebraic structures, we show that they have a punctual dimension either 1 or∞.
The punctual degree structures of rigid structures and the ordered integers are dense. We …
The punctual degree structures of rigid structures and the ordered integers are dense. We …
Primitive recursive equivalence relations and their primitive recursive complexity
N Bazhenov, KM Ng, L San Mauro, A Sorbi - Computability, 2022 - content.iospress.com
The complexity of equivalence relations has received much attention in the recent literature.
The main tool for such endeavour is the following reducibility: given equivalence relations R …
The main tool for such endeavour is the following reducibility: given equivalence relations R …
Primitive recursive ordered fields and some applications
V Selivanov, S Selivanova - Computability, 2023 - content.iospress.com
Primitive recursive ordered fields and some applications - IOS Press You are viewing a
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Punctually presented structures I: Closure theorems
M Dorzhieva, A Melnikov - Computability, 2023 - content.iospress.com
We study the primitive recursive content of various closure results in algebra and model
theory, including the algebraic, the real, and the differential closure theorems. In the case of …
theory, including the algebraic, the real, and the differential closure theorems. In the case of …
[图书][B] Revolutions and Revelations in Computability: 18th Conference on Computability in Europe, CiE 2022, Swansea, UK, July 11–15, 2022, Proceedings
This book constitutes the proceedings of the 18th Conference on Computability in Europe,
CiE 2022, in Swansea, UK, in July 2022. The 19 full papers together with 7 invited papers …
CiE 2022, in Swansea, UK, in July 2022. The 19 full papers together with 7 invited papers …