English
Related papers

Related papers: Conway Normal Form: Bridging Approaches for Compre…

200 papers

On Cuesta-Conway numbers as an extension of Cantor's ordinals: A short introduction to surreal numbers. The class of Cuesta-Conway numbers, the surreal numbers, can be defined simply, starting from their normal forms (families of…

Logic · Mathematics 2022-04-18 Labib Haddad

Conway's field No of surreal numbers comes both with a natural total order and an additional "simplicity relation" which is also a partial order. Considering No as a doubly ordered structure for these two orderings, an isomorphic copy of No…

Logic · Mathematics 2023-05-04 Vincent Bagayoko , Joris van der Hoeven

The class of surreal numbers, denoted by $\textbf{No}$, initially proposed by Conway, is a universal ordered field in the sense that any ordered field can be embedded in it. They include in particular the real numbers and the ordinal…

Logic · Mathematics 2022-11-16 Olivier Bournez , Quentin Guilmant

Conway's real closed field $\mathbf{No}$ of surreal numbers is a sweeping generalization of the real numbers and the ordinals to which a number of elementary functions such as log and exponentiation have been shown to extend. The problems…

Logic · Mathematics 2024-07-08 Ovidiu Costin , Philip Ehrlich

We give a presentation of Conway's surreal numbers focusing on the connections with transseries and Hardy fields and trying to simplify when possible the existing treatments.

Logic · Mathematics 2020-08-18 Alessandro Berarducci

In this treatise on the theory of the continuum of the surreal numbers of J.H. Conway, is proved ,that the three different techniques and hierarchies of the continuums of the transfinite real numbers of Glayzal A. (1937) defined through…

General Mathematics · Mathematics 2022-07-26 Konstantinos E. Kyritsis

Several authors have conjectured that Conway's field of surreal numbers, equipped with the exponential function of Kruskal and Gonshor, can be described as a field of transseries and admits a compatible differential structure of Hardy-type.…

Logic · Mathematics 2018-02-21 Alessandro Berarducci , Vincenzo Mantova

Conway's surreal numbers were aptly named by Knuth. This note examines how far one can get towards implementing surreals and the arithmetic operations on them so that they execute efficiently. Lazy evaluation and recursive data structures…

Data Structures and Algorithms · Computer Science 2026-04-21 Lloyd Allison

The present article surveys surreal numbers with an informal approach, from their very first definition to their structure of universal real closed analytic and exponential field. Then we proceed to give an overview of the recent…

Logic · Mathematics 2017-11-09 Vincenzo Mantova , Mickaël Matusinski

The notion of surreal number was introduced by J.H. Conway in the mid 1970's: the surreal numbers constitute a linearly ordered (proper) class $No$ containing the class of all ordinal numbers ($On$) that, working within the background set…

Category Theory · Mathematics 2019-12-02 Dimi Rocha Rangel , Hugo Luiz Mariano

In his monograph On Numbers and Games, J. H. Conway introduced a real-closed field No of surreal numbers containing the reals and the ordinals, as well as a vast array of less familiar numbers. A longstanding aim has been to develop…

Logic · Mathematics 2015-08-26 Ovidiu Costin , Philip Ehrlich , Harvey M. Friedman

We note that if a sequence of real numbers converges to some limit, then the sequence of the corresponding strings in the surreal $+,-$ sign expansion representation converges, for a natural notion of string convergence, to the string…

Logic · Mathematics 2017-03-17 Paolo Lipparini , István Mezö

We study the automorphism group of the field of surreal numbers. Our main structure theorem presents a decomposition of this group into a product of five significant factors. Using the representation of surreal numbers as generalized power…

Logic · Mathematics 2026-04-27 Elliot Kaplan , Lothar Sebastian Krapp , Michele Serra

We make a number of observations on Conway surreal number theory which may be useful, for further developments, in both in mathematics and theoretical physics. In particular, we argue that the concepts of surreal numbers and matroids can be…

General Physics · Physics 2016-12-21 J. A. Nieto

In [26], the algebraico-tree-theoretic simplicity hierarchical structure of J. H. Conway's ordered field $\mathbf{No}$ of surreal numbers was brought to the fore and employed to provide necessary and sufficient conditions for an ordered…

Logic · Mathematics 2021-06-24 Philip Ehrlich , Elliot Kaplan

We show that the natural embedding of the differential field of transseries into Conway's field of surreal numbers with the Berarducci-Mantova derivation is an elementary embedding. We also prove that any Hardy field embeds into the field…

Logic · Mathematics 2016-08-12 Matthias Aschenbrenner , Lou van den Dries , Joris van der Hoeven

The class $\mathbf{No}$ of surreal numbers, which John Conway discovered while studying combinatorial games, possesses a rich numerical structure and shares many arithmetic and algebraic properties with the real numbers. Some work has also…

Classical Analysis and ODEs · Mathematics 2015-05-21 Simon Rubinstein-Salzedo , Ashvin Swaminathan

In his monograph, H. Gonshor showed that Conway's real closed field of surreal numbers carries an exponential and logarithmic map. Subsequently, L. van den Dries and P. Ehrlich showed that it is a model of the elementary theory of the field…

Commutative Algebra · Mathematics 2016-10-10 Salma Kuhlmann , Mickaël Matusinski

Inspired by Conway's surreal numbers, we study real closed fields whose value group is isomorphic to the additive reduct of the field. We call such fields omega-fields and we prove that any omega-field of bounded Hahn series with real…

In [15], the algebraico-tree-theoretic simplicity hierarchical structure of J. H. Conway's ordered field No of surreal numbers was brought to the fore and employed to provide necessary and sufficient conditions for an ordered field to be…

Logic · Mathematics 2015-12-15 Philip Ehrlich , Elliot Kaplan
‹ Prev 1 2 3 10 Next ›