Published February 22, 2026 | Version version 1

Generalization of Analytic Algebraic Finite Representation Theory to Anti-Difference Equations Unified Rank Correspondence Law and Geometric Classification of Anti-Difference Equations

  • 1. ROR icon Peking University

Description

Based on the theory of analytic algebraic finite representations, this paper systematically constructs an analytic algebraic classification system for anti-difference equations (i.e., equations involving summation operators as the inverse of differences), fully generalizing the period number theorem, the double spectrum theorem, and the unified rank correspondence law established in the case of algebraic equations to the field of anti-difference equations. The core contributions include: (1) Defining difference-algebraic and summation-algebraic definability of anti-difference equations in the representation framework (Ci, Oj ), and proving that all anti-difference equations induced by algebraic curves (such as discrete elliptic function equations, discrete KdV equations, discrete Painlev´e equations, etc.) are definable in the framework (C0, O2) for their differential form, while their explicit summation forms require (C0, O5); (2) Introducing a spectrum of characteristic invariants for anti-difference equations: monodromy rank (geometric rank), difference Galois group dimension (algebraic rank), isomonodromic moduli space dimension (moduli rank), rational solution rank (arithmetic rank), and order of vanishing of L-functions (analytic rank), and proving that they satisfy a unified rank correspondence law; (3) Generalizing the period number theorem to: the period lattice rank of solutions of integrable systems on an algebraic curve of genus g is 2g, and equals the monodromy rank; (4) Establishing a double spectrum theorem for anti-difference equations, precisely correlating the problem complexity of the equation (order, singularity structure, spectral curve genus) with the geometric complexity of the solution functions (period number, moduli rank); (5) Proving a form of the analytic algebraic spectral theorem for eigenvalue problems of difference and summation operators, elucidating the spectral symmetry of π-type and e-type transcendental functions; (6) Exploring applications of the theory in arithmetic anti-difference equations, integrable systems, and mathematical physics, and indicating deep connections with the BSD conjecture and the Langlands program. This paper provides a unified geometric and representation-theoretic framework for the classification and arithmetic theory of anti-difference equations.

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Alternative title (English)
Generalization of Analytic Algebraic Finite Representation Theory to Anti-Difference Equations

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2025-12-31

References

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