Authors: Sethurathienam Iyer
Source: Zenodo (CERN European Organization for Nuclear Research) (article, 2025-04-21)
Field: Materials Science — Materials Chemistry

Spectral-Multiplicative Optimization Framework Spectral-Multiplicative Framework for Enterprise-Scale Constraint Optimization: Implementation and Validation Abstract This archive contains the complete implementation and validation suite of a novel spectral-multiplicative optimization framework that bridges heat-kernel spectral theory with number-theoretic constraint encoding. The system achieves O(nnz) complexity for graphs exceeding 100,000 nodes while maintaining ρ ≥ 0.99 correlation between spectral action and multiplicative penalties. Key innovations include: (1) DEFEKT diagnostics for quantifying inherent optimization limits via variance floor analysis; (2) multiplicative prime-weight constraint encoding derived from Bost-Connes system truncation; (3) neural-adaptive weight calibration; and (4) real-time correlation guarding during simulated annealing. Validated across 17+ problem domains including cloud resource allocation (demonstrating $1.4M/year cost savings), SAT solving (92.5% solvability prediction accuracy), and multi-type graph partitioning. This implementation provides the first computationally verified demonstration of Bost-Connes truncation convergence to ζ(β) with sub-1% error using finite prime sets. Description 1. Introduction and Theoretical Foundation This package implements a unified optimization framework that addresses the fundamental limitation of traditional spectral methods: their inability to preserve global spectral invariants while enforcing local constraints. The core innovation treats constraint satisfaction as a problem in spectral arithmetic—encoding discrete constraints using multiplicative structures derived from prime number theory, specifically the Euler product representation of the Riemann zeta function. The framework is built upon the Bost-Connes quantum statistical mechanical system (Bost & Connes, 1995), which we demonstrate can be computationally truncated to finite prime sets while preserving ζ(β) convergence properties. This theoretical foundation distinguishes our approach from heuristic constraint weighting: constraints are not arbitrary penalties but Euler factors in a partition function whose limiting behavior is mathematically characterized. 2. Core Methodology 2.1 Spectral-Multiplicative Energy Function The unified objective combines four theoretically motivated terms: E_unified = -Tr(e^(-tL)) + w_fair·Σ(|S_i| - n/k)² - w_ent·H(S) - w_pen·log∏ᵢ∏ᵥ∈Sᵢ(1 - 1/pᵥ²) Spectral action: Heat kernel trace computed via Hutchinson's estimator with Taylor expansion (O(nnz) complexity) Balance penalty: Quadratic variance from ideal segment sizes Entropy term: Shannon entropy H(S) = -Σ(|S_i|/n)log(|S_i|/n) Multiplicative penalty: Prime-weighted product creating unique constraint signatures 2.2 DEFEKT Diagnostics Framework DEFEKT (Diagnostic Evaluation of Constraint Feasibility and Energy Kurtosis Thresholds) provides pre-optimization feasibility assessment: Variance floor: Theoretical minimum energy via spectral gap analysis Structural defect coefficient: Ratio of current variance to floor variance Contiguity tax: Penalty derived from Cheeger inequality for geometric constraints Phase transition detection: β-parameter regions where system behavior qualitatively changes 2.3 Adaptive Weight Calibration A neural network learns optimal weights {w_fair, w_ent, w_pen} by maximizing spectral-multiplicative correlation across ergodically sampled configurations. Training objective: max_w Corr(-Tr(e^(-tL)), -log∏(1 - 1/p²)) 2.4 Correlation Guard Runtime monitoring ensures ρ ≥ 0.99 throughout simulated annealing. Deviation triggers corrective penalties proportional to λ·(0.99 - ρ), preserving approximation validity. 3. Implementation Details 3.1 Architecture Language: Crystal (>=1.8, <2.0) for performance Core modules: 13 categories, 49 test suites Memory model: Compressed Sparse Row (CSR) matrices with memory pooling Complexity: O(nnz) per energy evaluation, O(k·nnz) for k eigenvalues via Lanczos 3.2 Key Components SparseMatrix: Custom CSR implementation with O(nnz) memory footprint Energy: Unified energy computation with correlation monitoring Annealer: Simulated annealing in continuous angular space [0, 2π)^k DEFEKT: Diagnostic engine for variance analysis NeuralWeights: Adaptive weight learning via backpropagation BetheHessian: Hybrid spectral analysis for community detection 3.3 Validation Methodology The framework includes extensive validation: Bost-Connes verification: Euler product convergence tested for β ∈ [1.5, 3.0] and N ∈ {24, 48, 96} primes. Results show 99.97% accuracy for β=2.0 at N=96. Correlation analysis: Spectral-multiplicative correlation maintained >0.99 across 1,000+ random configurations Performance benchmarking: Linear scaling confirmed up to 100K nodes (89s runtime, 156MB memory) Enterprise validation: Cloud optimization scenario demonstrates 99.6% constraint satisfaction with $1.4M/year cost savings Citation and Attribution If you use this framework in your research or commercial applications, please cite: @software{SpectralMultiplicativeFramework2025, author = {Iyer, Sethu}, title = {{Spectral-Multiplicative Framework: Heat-Kernel Constraint Partitioning Engine}}, year = {2025}, publisher = {Zenodo}, version = {0.1.0}, doi = {10.5281/zenodo.17596089]}, url = {https://doi.org/10.5281/zenodo.17596089]}, license = {CC-BY-4.0} } License and Availability This implementation is released under CC-BY-4.0 for research and evaluation. Commercial use requires a separate commercial license. Contact stuehieyr@gmail.com for enterprise licensing, integration support, and pilot program enrollment. Code available at : https://github.com/sethuiyer/spectral-multiplicative-framework Blog available at : https://github.com/sethuiyer/shunyabar-labs Heuristic ; Multiplicative function ; Optimization problem ; Convergence (economics) ; Constraint (computer-aided design) ; Constrained optimization ; Global optimization Machine Learning in Materials Science ; Constraint Satisfaction and Optimization ; Quantum Computing Algorithms and Architecture