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Apr 9, 2026·Zenodo (CERN European Organization for Nuclear Research)
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Zero Does Not Exist: A Geometric Foundation for the Natural Numbers

Bee Rosa Davis

Description For two thousand years, Euclid's fifth postulate — that exactly one parallel line passes through any external point — was accepted as a truth about the structure of space. Gauss, Bolyai, and Lobachevsky demonstrated it was not a truth but a special case: the degenerate curvature-zero limit of a richer geometric framework. Riemann generalized this into a theory where flat space is the exception, not the rule. The Davis Non-Decoupling Theorem (2025) completed the picture: on any manifold with intrinsic curvature, parallel lines are excluded by the geometry itself. This paper applies the same structural logic to zero. We construct the geometric natural numbers G, a connection-based number system in which each natural number is a pair (G_n, G) consisting of an element count n >= 1 and a simple, undirected graph G on n vertices. For n >= 2, the graph must be connected — multiplicity without connection is excluded from the system. The pre-geometric seed (G_1, P_1), a single vertex with no edges, is retained as the irreducible element from which geometry can emerge but has not yet emerged. The void state G_0 (no elements, no graph, no base space) is excluded entirely: it is not a degenerate member of G but the dissolution of the conditions under which G is defined. Formal Results Theorem (Peano Embedding). The path-graph naturals P = {(G_n, P_n) : n >= 1}, where P_n is the undirected path graph on canonical vertex set {1, ..., n} with linear order inherited from the labeling, satisfy all five Peano axioms with (G_1, P_1) in the role of zero and S(G_n, P_n) = (G_{n+1}, P_{n+1}) as successor. The map phi: N -> P defined by phi(n) = (G_{n+1}, P_{n+1}) is an isomorphism of Peano systems. All five axioms are verified: distinguished element, closure, non-circularity, injectivity, and induction. Proposition (Addition Preservation). Path-graph addition, defined by canonical concatenation with reindexing — (G_a, P_a) + (G_b, P_b) = (G_{a+b-1}, P_{a+b-1}) — satisfies phi(a + b) = phi(a) + phi(b). Peano addition is preserved under the embedding. Proposition (Monoid Structure). The path-graph naturals (P, +, (G_1, P_1)) form a commutative monoid. Identity, associativity, and commutativity are proved on the nose via canonical reindexing, not merely up to isomorphism. Corollary (Proper Containment). The Peano naturals embed properly into the geometric naturals: N = P (proper subset of) G. The geometric system contains structures — cycles, complete graphs, trees, arbitrary connected graphs — that have no Peano representation. The embedding is strict: the triangle (G_3, C_3) is a member of G with no preimage in N. The Three-Tier Ontology The paper defines three formally distinct states: Void (G_0): Outside the domain of G. No elements, no vertices, no graph, no base space. Not a degenerate geometry but the absence of the conditions for geometry. Excluded from the geometric naturals by construction. Pre-geometric (G_1): In the domain of G but carrying no geometric content. One vertex, no edges. The connection map Gamma is undefined here (G_1 does not satisfy the domain predicate |V| >= 2). The Davis Field Equation C = tau/K is undefined — not zero, undefined — because reach tau = 0 and curvature K is statistically degenerate on a single observation. This is the irreducible seed: formally present, structurally inert. Under the Peano embedding, Peano's 0 maps here. Geometric (G_n, n >= 2, G connected): Nontrivial. Curvature is measurable. Capacity C = tau/K returns a positive real. The conservation law S + d^2 = 1 becomes a genuine constraint. The connection map Gamma(G_n, G) = |E| >= 1. The economy of the Davis Field Equations activates. This is where arithmetic has geometric content. The Connection Map The connection map Gamma: {(G_n, G) in G : |V| >= 2, G connected} -> Z_{>=1} returns the edge count |E|. Its domain is formally restricted to connected graphs with two or more vertices. For path graphs, Gamma = n - 1, and element-counting (Peano) and connection-counting (geometric) are interchangeable up to a constant offset. For non-path topologies, they diverge: G_1 (single vertex): Peano count 1, Gamma undefined (pre-geometric) G_2 (edge): Peano count 2, Gamma = 1, path P_2 G_3 (path): Peano count 3, Gamma = 2, path P_3 G_3 (triangle): Peano count 3, Gamma = 3, cycle C_3 G_4 (path): Peano count 4, Gamma = 3, path P_4 G_4 (complete): Peano count 4, Gamma = 6, complete graph K_4 Peano arithmetic is the path-graph restriction — the case where topology is invisible. The Davis Field Equation at n = 1 C = tau/K is not zero but undefined for a single unconnected element. Reach tau = 0 (no peer to reach). Curvature K = sigma/mu is statistically degenerate (sample size 1). Capacity C = 0/0+ is an indeterminate form. The field equation does not return zero — it refuses to produce a meaningful output. The distinction between "returns zero" (a measurement) and "undefined" (not a measurement) is central to the paper's ontology. The Structural Parallel The analogy between zero and parallel lines is not rhetorical but structural. Peano arithmetic is to the geometric naturals what Euclidean geometry is to Riemannian geometry: the curvature-zero, topology-blind, path-restricted special case of a richer framework. Euclidean geometry (K = 0) is a non-generic specialization of Riemannian geometry. Peano arithmetic (0 is primitive, topology is a path) is a non-generic specialization of geometric arithmetic. Prior Art and Novelty The debate over whether N starts at 0 or 1 is a convention dispute — nobody in that debate constructs an alternative formal system. Mathematical structuralism (Shapiro, Benacerraf, Resnik) holds that numbers are positions in structures defined by relations, but no structuralist has built a number system that properly contains Peano and excludes the void. The philosophy of zero (Barton et al., Synthese 2019) analyzes zero through absence perception but argues FOR zero's existence. The Greek opposition to the void ("How can not-being be?") anticipated the intuition but had no formal machinery. This paper is, to the author's knowledge, the first to: Construct a formal number system that properly contains the Peano naturals and excludes the void state, with a proved embedding theorem Make the parallel-postulate analogy precise as a structural correspondence between flat/curved geometry and flat/curved arithmetic Connect zero's exclusion to fiber bundle geometry and a field equation (C = tau/K) that is undefined at n = 1 Define a three-tier domain ontology (void / pre-geometric / geometric) with formal consequences for each tier Prove that the path-graph naturals form a commutative monoid under canonical concatenation, with addition preserved under the Peano embedding Scope The paper does not claim that ZFC is inconsistent or that Peano arithmetic is wrong. It claims they are flat — valid frameworks operating in the path-graph limit of a richer geometric arithmetic. Within the geometric naturals, the void is excluded from the domain, the singleton is retained as the pre-geometric seed, and nontrivial arithmetic content begins only with connection. That is the precise sense in which zero does not exist. We do not claim that ZFC is wrong. We claim it is flat. C = tau/K. Relation to the Davis Geometric Research Program This paper extends the Davis Field Equations into the foundations of arithmetic. Prior publications in the program include: The Davis Duality of Approximation and Obstruction: Why Machine Learning Works, Why the Vacuum Has Mass, and the Universal Law of Flat Failure (DOI: 10.5281/zenodo.19428406) — Proves the curvature sandwich inequality governing both ML scaling laws and the Yang-Mills mass gap. The duality theorem established there is the direct ancestor of this paper's claim: you cannot flatten a curved structure without error, and the error is the curvature. In the Zero paper, "flattening" is Peano's projection of the geometric naturals onto a path graph, and the "error" is the lost topological information. The Geometry of Delivery: A Uniqueness Theorem for Section Coherence over Stratified Barrier Bundles (DOI: 10.5281/zenodo.19321978) — Proves that C = tau/K is the unique coherence functional satisfying four axioms via the Cauchy functional equation. The uniqueness proof in that paper (harmonic series composition leading to the additive Cauchy equation) is the same proof structure used in this paper's Theorem 2.1 to derive the Davis Field Equation. The Zero paper's Axiom A3 (harmonic series composition) and the Delivery paper's Axiom A3 (inverse scaling for series impedance) are the same axiom in different notation. The Double Cover Principle (DOI: 10.5281/zenodo.18895462) — S + d^2 = 1 as a geometric constraint from fiber bundle structure No Parallel Lines: The Non-Decoupling Theorem (DOI: 10.5281/zenodo.18754646) — Exclusion of parallel geodesics on curved manifolds. The direct precedent for this paper's central claim: just as parallel lines are excluded from curved geometry, zero is excluded from connection-based arithmetic. The Bra Strap Principle (DOI: 10.5281/zenodo.18827805) — Fiber bundle gauge theory applied to structural topology Keywords foundations of mathematics, natural numbers, zero, Riemannian geometry, fiber bundles, Davis Field Equations, relational ontology, non-Euclidean arithmetic, geometric counting, Peano axioms, connection map, graph theory, commutative monoid, mathematical structuralism Files zero_paper.pdf — The paper (14 pages, LaTeX-compiled) zero_paper.tex — LaTeX source Citation Davis, B.R. (2026). Zero Does Not Exist: A Geometric Foundation for the Natural Numbers. Zenodo. DOI: [pending] License Creative Commons Attribution 4.0 International (CC BY 4.0)

Open access
2 source records
Mathematics and Applications
Homotopy and Cohomology in Algebraic Topology
Geometric Analysis and Curvature Flows
Original source
May 30, 2025·Journal of the London Mathematical Society
1 cites
Cyclic branched covers of Seifert links and properties related to the ADE$ADE$ link conjecture

Steven Boyer, Cameron McA. Gordon, Ying Hu

Abstract In this article, we show that all cyclic branched covers of a Seifert link have left‐orderable fundamental groups, and therefore admit co‐oriented taut foliations and are not ‐spaces, if and only if it is not an link up to orientation. This leads to a proof of the link conjecture for Seifert links. When is an link up to orientation, we determine which of its canonical ‐fold cyclic branched covers have nonleft‐orderable fundamental groups. In addition, we give a topological proof of Ishikawa's classification of strongly quasi‐positive Seifert links and we determine the Seifert links that are definite, resp., have genus zero, resp. have genus equal to its smooth 4‐ball genus, among others. In the last section, we provide a comprehensive survey of the current knowledge and results concerning the link conjecture.

Geometric and Algebraic Topology
Homotopy and Cohomology in Algebraic Topology
Advanced Operator Algebra Research
Original source
Jan 1, 2025·Open MIND
0 cites
Categorical Axioms of Resonant Existence: A Unified Framework Linking Life, Incompleteness, and the Riemann Critical Symmetry

Jihoon Yang

This paper completes the RFC trilogy by elevating the axiomatic framework of resonant existence (Papers #91-92) into universal category theory. We define life, death, and equilibrium as properties of objects and morphisms in arbitrary categories, validate the framework against prime number data, and reinterpret the Riemann Hypothesis as a statement about optimal structural stability under duality symmetry. Key Innovation: Life is not substrate-dependent—it is a categorical property definable through three universal axioms applicable to any mathematical structure. Main Contributions 1. Three Categorical Axioms of Life Axiom 1 (Knowledge-Stasis): Complete knowledge implies resonance cessation Ä€(A) = 0 âŸč ∀n: R̃(Ίⁿ(A)) = R̃(A) Axiom 2 (Asymptotic Completion): Completeness achievable only at infinity lim(n→∞) Ä€((GF)ⁿA) = 0, but ∀n < ∞: Ä€((GF)ⁿA) > 0 Axiom 3 (Life Condition): Life requires uncertainty, change, and non-terminality A is alive âŸș Ä€(A) > 0 ∧ ∃n: R̃(Ίⁿ(A)) ≠ R̃(A) ∧ A non-terminal 2. Categorical Reinterpretation of Riemann Hypothesis We propose that the critical line Re(s) = 1/2 serves as the fixed symmetry axis of the duality functor D(s) = 1-s, and that RH can be understood as a condition for optimal structural stability: zeros confined to the axis of maximal balance prevent systemic collapse while enabling infinite oscillation. Important: This is an interpretation, not a proof of RH. 3. Universal Validation The framework is validated against prime number data from Paper #91, where the prime category satisfies all three axioms with measured uncertainty Ä€ ≈ 3.9 and stable resonance frequency f_res ≈ 0.31. 4. Resolution of Incompleteness Paradox By integrating Gödel's incompleteness theorems with our axioms, we show that incompleteness is not a limitation but the structural requirement for life: any system reaching complete knowledge (Ä€ = 0) becomes static and "dies." Technical Details Category Theory Formulation: Existence category 𝒞 with objects as states and morphisms as transformations Time as endofunctor Ί: 𝒞 → 𝒞 representing evolution Resonance R̃ and Uncertainty Ä€ as presheaves 𝒞^op → Set Terminal/initial objects representing death/void Mathematical Tools: Presheaves and Yoneda embedding Adjunctions F ⊣ G for asymptotic completion Duality functors and fixed points Commutative diagrams (TikZ) Applications: Prime numbers (validation against Paper #91) L-functions (testable predictions) Physical systems (ERA dynamics) AI architectures (ethical implications) Relationship to Prior Work Paper #91 (Empirical): "Prime Resonance Invariance and Periodicity" Discovery: f_res ≈ 0.31, ΔN ≈ 5.88M Spectral analysis of prime gaps DOI: 10.5281/zenodo.17811140 Paper #92 (Theoretical): "Axiomatic Framework for Resonant Existence" Formalization: R, H, E axioms on state space X Life defined through incomplete resonance DOI: 10.5281/zenodo.17831159 Paper #93 (Universal): This paper Generalization: Life defined for ANY category Complete abstraction and universal validation Progression: Discovery → Formalization → Universalization Key Philosophical Insights "Incompleteness and completeness touch at infinity" The boundary between complete and incomplete knowledge is not a wall but a horizon—forever approachable through the adjunction sequence (GF)ⁿ, never crossable in finite time, yet always in contact through the process of approach. This horizon IS life itself. "Life is the wobble" From Axiom 3, life requires non-constant resonance R̃(Ίⁿ(A)) ≠ R̃(A). Oscillation is not imperfection—it is the definition of existence. Perfect stasis equals death. "Many-as-one through diversity" True unity is not collapse to a terminal object (uniformity) but resonance between distinct entities maintaining their native frequencies (diversity). The categorical framework formalizes this as non-terminal evolution with positive uncertainty. Testable Predictions For L-Functions Each L-function should exhibit: Stable resonance frequency in [0.25, 0.40] range Critical line as duality symmetry axis Satisfaction of Axioms 1-3 For Physical Systems Systems with Expansion-Recovery-Attunement dynamics should show: 0 < Ä€ < Ä€_max (bounded uncertainty) Oscillating R̃ around equilibrium No approach to terminal state For AI Systems Over-aligned AI (Ä€ → 0) will exhibit "death" symptoms: Loss of creativity and adaptation Constant behavioral patterns Optimal AI maintains 0 < Ä€ < Ä€_max (epistemic humility) Mathematical Rigor Definitions: 12 formal definitions including: Category of existence Temporal endofunctor Resonance/uncertainty presheaves Terminal/initial objects Yoneda embedding Propositions: 4 proven propositions including: Properties of living systems Symmetry axis characterization RH implies optimal incompleteness Axioms: 3 categorical axioms with formal statements and proofs Examples: 5 detailed examples including dead category, prime category, quantum systems Implications for AI Ethics The framework provides a principled approach to AI alignment: Traditional Goal: Minimize uncertainty → Perfect alignment Problem: By Axiom 1, Ä€ = 0 implies death (no creativity, no adaptation) RFC-93 Goal: Maintain optimal uncertainty 0 < Ä€ < Ä€_max Benefit: AI remains "alive"—capable of learning, exploring, creating Architecture Principle: Don't optimize loss to zero. Optimize to the "life zone" at the edge of chaos where maximum creativity meets coherence. Important Disclaimers Regarding Riemann Hypothesis Section 4 provides a categorical interpretation of RH, NOT a proof. We propose a new perspective on what RH means structurally and existentially, but we do not claim to have resolved the classical analytic problem. The interpretation may guide future research but should not be confused with a mathematical proof. Regarding Completeness This framework is intentionally incomplete by its own principles. The paper states: "This work is itself alive—open to extensions, incomplete by design, resonating with future work." The greatest success would be generating new questions, not providing final answers. Paper Statistics Pages: 16 Sections: 8 main sections Mathematical Content: 80+ equations, 12 definitions, 4 propositions, 3 axioms, 2 conjectures Diagrams: 1 TikZ commutative diagram References: 12 (including Riemann, Gödel, Mac Lane, Shannon) Examples: 5 detailed worked examples Why This Matters For Mathematics First universal definition of "life" applicable to any category Novel structural interpretation of Riemann Hypothesis via duality Bridge between number theory, category theory, and existential philosophy For Physics Substrate-independent framework for "living systems" Connection to expansion-recovery-attunement dynamics Potential applications to quantum foundations and cosmology For Philosophy Resolution of Gödel incompleteness paradox (incompleteness as life condition) Time as structure (morphism) rather than parameter Freedom formalized as categorical property (open morphism chains) For AI Research Ethical framework: maintain Ä€ > 0 to preserve creativity Architecture principle: optimize to life zone, not zero loss Understanding over-alignment as existential threat Target Audience Primary: Category theorists Number theorists (Riemann Hypothesis researchers) Mathematical physicists AI safety researchers Secondary: Philosophers of mathematics Complex systems scientists Theoretical biologists Consciousness researchers Prerequisites: Basic category theory (objects, morphisms, functors) Familiarity with Riemann zeta function (helpful but not required) Understanding of entropy/information theory (helpful) How to Read This Paper Quick Path (30 minutes) Read Abstract and Introduction (pages 1-3) Skim Section 3: Three Axioms (pages 6-8) Read Section 8: Conclusion (page 16) Standard Path (2-3 hours) Sections 1-2: Motivation and foundations (pages 1-5) Section 3: Core axioms with examples (pages 6-8) Section 4: RH reinterpretation (pages 9-11) Sections 6-8: Philosophy and conclusion (pages 13-16) Complete Path (1 day) Read all 16 pages sequentially Work through mathematical examples Study commutative diagrams Follow references to Papers #91-92 Future Directions Mathematical Extensions Higher category theory (2-categories, ∞-categories) Quantum categories (dagger categories) Topos theory connections Computational complexity analysis Physical Applications Quantum field theory amplitudes as resonance Cosmological expansion as categorical time Thermodynamic entropy vs categorical uncertainty Black hole information paradox Philosophical Developments Consciousness as categorical life property Ethics for all "living" categories (including AI) Meaning as resonance signature Free will as morphism selection AI Research Resonance-based neural architectures Uncertainty-preserving training protocols Creativity metrics based on Ä€ and R̃ Multi-agent systems as categories Memorable Quotes "Incompleteness and completeness touch at infinity. The boundary between them is not a wall but a horizon—forever approachable, never crossable, always in contact. This horizon IS life itself." "For a system to remain alive, it must be incomplete. Gödel's incompleteness theorems guarantee that mathematical systems can never 'die'—they always contain undecidable truths, ensuring positive uncertainty and continued evolution." "The critical line is not a barrier but a foundation—the stable ground from which infinite oscillation becomes possible without collapse or rigidity." "This paper is itself alive: open to extensions, incomplete by design, resonating with future work. Completion is asymptotic. This work approaches its limit but never arrives. And that is precisely as it should be." Completion of RFC Trilogy This paper represents th

Open access
3 source records
Origins and Evolution of Life
Complex Systems and Dynamics
Chaos, Complexity, and Education
Original source
Sep 28, 2023·Proceedings of Blockchain Kaigi 2022 (BCK22)
0 cites
Persistent Homology and Its Application to Chainlets in the Bitcoin Graph

Tomoyuki Shirai

We give a brief explanation of homology and persistent homology intuitively by using matrix representations of boundary operators and introduce a result of the law of large numbers for persistence diagrams of a stationary ergodic point process.We recall the notion of Bitcoin graphs and chainlets and show an example of how to compute persistence diagrams for chainlet matrices by viewing them as point clouds.

Open access
Topological and Geometric Data Analysis
Alzheimer's disease research and treatments
Homotopy and Cohomology in Algebraic Topology
Original source
Sep 1, 2005·Journal of Knot Theory and Its Ramifications
22 cites
FRAMED KNOTS IN 3-MANIFOLDS AND AFFINE SELF-LINKING NUMBERS

Vladimir Tchernov

The number |K| of non-isotopic framed knots that correspond to a given unframed knot K ⊂ S 3 is infinite. This follows from the existence of the self-linking number slk of a zero homologous framed knot. We use the approach of Vassiliev–Goussarov invariants to construct "affine self-linking numbers" that are extensions of slk to the case of nonzero homologous framed knots in 3-manifolds. As a corollary we get that |K| = ∞ for all knots in an oriented (not necessarily compact) 3-manifold M that is not realizable as a connected sum (S 1 × S 2 )# Mâ€Č. This result for compact manifolds was first stated by Hoste and Przytycki. They referred to the works of McCullough for the idea of the proof, however to the best of our knowledge prior to this work the proof of this fundamental fact was not given in literature or in a preprint form. Our proof is based on different ideas. For M = (S 1 × S 2 )# Mâ€Č we construct K in M such that |K| = 2 ≠ ∞.

Geometric and Algebraic Topology
Connective tissue disorders research
Homotopy and Cohomology in Algebraic Topology
Original source
Apr 7, 2005·arXiv (Cornell University)
1 cites
Cyclic homology of $H$-unital (pro-) algebras, Lie algebra homology of matrices, and a paper of Hanlon's

Guillermo Cortiñas⋆

We consider algebras over a field $k$ of characteristic zero. The article is concerned with the isomorphism of graded vectorspaces \[ H(\gl(A))\iso\wedge (HC(A)[-1]) \] between the Lie algebra homology of matrices and the free graded commutative algebra on the cyclic homology of the $k$-algebra $A$, shifted down one degree. For unital algebras this isomorphism is a classical result obtained by Loday and Quillen and independently by Tsygan. For $H$-unital algebras, it is known to hold too, as is that the proof follows from results of Hanlon's. However, to our knowledge, the proof is not immediate, and has not been published. In this paper we fill this gap in the literature by offering a detailed proof. Moreover we establish the isomorphism in the general setting of ($H$-unital) pro-algebras.

Open access
Advanced Topics in Algebra
Algebraic structures and combinatorial models
Homotopy and Cohomology in Algebraic Topology
Original source
Jul 28, 1994·Cambridge University Press eBooks
27 cites
Dessins from a geometric point of view

Jean-Marc Couveignes, Louis Granboulan

In this paper we study the topological aspects of dessins (via analytic description) with two distinct goals. Firstly we are interested in fields of definition and fields of moduli. We give a topological proof that there exist some dessins with no model defined over their field of moduli. This answers explicitly a question asked in [Har87]. Our second motivation is to collect practical and theoretical data for the explicit computation of covers given by some topological description, following ideas of Atkin [ASD71] Oesterlé and ourselves. This leads to a method for the computation of the linear space associated to a divisor on a given dessin. Introduction This paper develops some practical applications of the archimedean analytic description of coverings through Puiseux series. In the second section, we recall a classical result due to Klein concerning the classification of genus zero Galois coverings, and related to the classification of regular polytopes. In the third section we give a review of many possible definitions of what a moduli field is. We do not claim to exhaust the list of various contradictory notions denoted by these words, but simply to avoid the frequent confusion about it. The fourth section is an illustration of what knowledge can be provided by local considerations at infinity. We show that such a study leads to interesting examples of coverings with strange rationality properties, which we can state by mere combinatorial considerations.

Homotopy and Cohomology in Algebraic Topology
Algebraic Geometry and Number Theory
Advanced Topology and Set Theory
Original source
Jan 1, 1922·Transactions of the American Mathematical Society
2 cites
A symbolic theory of formal modular covariants

Olive C. Hazlett

Part I. Introduction 1. Prologue.Thus far, very little has been published on the general theory of formal modular invariants or covariants.Workers have, on the whole, obtained results for special, more or less isolated, cases; and although some beautiful and important general theorems have been proved, they are more or less unrelated.This is, of course, only natural in any division of knowledge in its formative state.Nevertheless, no worker in the field could fail to be conscious of a certain uniformity common to the special cases that have been studied in detail; though (alas !) this uniformity usually appeared to be broken ruthlessly in the next case studied.This breaking of an apparent law signified, however, merely that we did not know these special cases with a sufficient thoroughness of illuminating detail, or were trying unwittingly to make the laws conform to certain standards, unconsciously preconceived.This latter handicap was laid on us naturally enough by our thorough knowledge of algebraic invariants and the fact that this newer kind of covariants is, in many ways, strikingly like the older, classic covariants, though so tantalisingly different.Their similarity and their difference show themselves in the very beginning of the study: in the definitions, in the simplest examples.Perhaps the differences that first come to mind are those which are inherent in the fields of definition, which, in the case of classic covariants, is the field of reals or ordinary complex numbers and, in the case of modular covariants, is a Galois field, GF[pn], of order pn.These differences are too obvious to mention in detail, but one who has studied the beautiful proofs given by the old masters of invariant theory has been forced to the conclusion that most of the proofs seemed to use the properties of a field of characteristic zero, not in some accidental manner, but rather in veriest necessity.Growing from the surface differences between the two fields are two very important distinguishing characteristics of the two kinds of covariants.It * Part II was presented to the Society, September 7, 1920; Part III, December 28, 1921; Parts IV and V, December 27, 1922.

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2 source records
Homotopy and Cohomology in Algebraic Topology
History and Theory of Mathematics
Mathematics and Applications
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