The Mathematician 23-12-2025
ancient math motifs, math-inspired puzzles, deep number theories
🏛️ Math History & Culture
Mesopotamian Botanical Motifs May Represent Early Mathematical Thought (archaeology.org). Halafian pottery depicts floral motifs with petal counts in geometric progressions, suggesting early mathematical thinking
Markov Chain - Russian Math Feud That Now Predicts Your Life (brajeshwar.com). Markov chains, probability, and next-word prediction traced from Pushkin to Google PageRank and modern NLP tools
Ego in Arcadia (bristoliver.substack.com). Explores time-travel, science history, chaos theory, and Archadia's portrayal; discusses Einstein, Lovelace, Shannon, Stoppard, and the role of technology
🎨 Puzzles & Visual Math
Partridge Puzzle (tunbury.org). Explores OCaml's Combine library (Dlx, Zdd, EMC, tiling) with example code and Advent of Code, Matt Parker, SAT, DLX, and tiling puzzles
New Gozinta Boxes Trick (blog.tanyakhovanova.com). Gozinta boxes trick: nested cuboids, rotation, and six possible nesting orders explored by Tanya Khovanova and STEP students
Mathematical Objects: Slice of pizza (aperiodical.com). A conversation about mathematics inspired by a slice of pizza, featuring Katie Steckles and Peter Rowlett, exploring Gaussian curvature and pizza-related puzzles
Drawing Truchet tiles in SVG (alexwlchan.net). Drawing Carlson Truchet tiles in SVG using parametric templates and random tiling in JavaScript
🔢 Number Theory Curios
The unreasonable deepness of number theory (lesswrong.com). Explores Dirichlet primes, Euler’s proof, and how complex analysis reveals deep links to number theory
The Angelakos Prime Spiral: A New Way to Visualize Prime Numbers? (vyruss.org). Explores prime visualization via a square-spiral using Python/matplotlib to depict prime gaps and monotonic prime sequence
Day 22 – Numerically 2026 Is Unremarkable Yet Happy (raku-advent.blog). Raku Advent Calendar analyzes 2026 as a semiprime and happy number using Math::NumberTheory, primitive roots, and D3 visualizations in Raku
Multiples with no large digits (johndcook.com). Curious theorem: for any N not multiple of 10, a multiple of N contains only digits 1–5 in base 10; generalizes to base b with digits 1–b/p
🔐 Crypto, ZK & Quantum
Shipping an L1 zkEVM #2: The Security Foundations (blog.ethereum.org). Security foundations for real-time zkEVMs, aiming 128-bit provable security with soundness proofs, milestones, and soundcalc integration
Faster practical modular inversion (purplesyringa.moe). In Rust, Lemire-inspired Stein-like optimizations for modular inversion, GCD, 64-bit handling, and SWAR techniques with references to Pornin and Yuki
More on whether useful quantum computing is “imminent” (scottaaronson.blog). Scott Aaronson surveys quantum computing progress, Q2B talks, cryptography urgency, and public commentary dynamics
TBR #300: Quantum Computing (thebitcoinroll.substack.com). Quantum computing threats to ECDSA in Bitcoin wallets; P2PKH vulnerability, quantum-resistant DSAs, and compatibility challenges
On Constructing AEs with Leakage and Faults (tosc.iacr.org). LEAF: a single-fault-resistant AE construction against leakage and fault attacks using combined secure building blocks
🧑💻 Software Craft Notes
An Inequality Union Find Inspired by Atomic Asymmetric Completion (philipzucker.com). Asymmetric completion, inequality union-find, e-graphs, refinement, and Brunei-style generalized rewriting in Python with LEUF
Property-based testing, adversarial developers, and LLMs (protocols-made-fun.com). Property-based testing, adversarial developers, LLMs, Hypothesis, Apalache, and Python-based examples in addition, commutativity, and associativity checks
I would still like to write my own constraint programming solver (logicgrimoire.wordpress.com). Discusses building a constraint programming solver in Perl (potentially C), with a test suite, Lambda constraints, and graph-search approaches
[Math] Intervals: examples of half-open intervals (yurichev.com). Half-open intervals across languages (Python, C++, Go, POSIX) with examples of range, random, and STL usage explained
Vibe Coding (davidbau.com). Vibe coding with LLMs: tests, metaprogramming, and towers of complexity for a Mandelbrot web page
🧮 Numerical Methods
Comparing BDF vs. Tendler vs. Tischer formulas (eklausmeier.goip.de). Comparing BDF, Tendler, and Tischer formulas for stiff ODEs using Dahlquist’s test equation with varying Widlund wedge angles and precision tests in double and float complex
You Must Use full_matrices=False with the NumPy SVD function to Compute the Pseudo-Inverse (jamesmccaffreyblog.com). Using NumPy SVD with full_matrices=False to compute the Moore-Penrose pseudo-inverse in Python
Owen Scrambling in Quantlib (chasethedevil.github.io). Owen scrambling in Quantlib with Brent Burley’s hash-based scrambling and QuantLib C++ implementation notes
Trying to fit a logistic curve (johndcook.com). Fitting a logistic curve from left-tail data with Python's SciPy may fail or be imprecise
Solving Large-Scale Linear Sparse Problems with NVIDIA cuDSS (developer.nvidia.com). NVIDIA cuDSS enables scalable sparse solvers on CPU/GPU with hybrid memory, MG mode, and MGMN for large EDA, CFD, and optimization workloads
🎲 Ranking & Bayesian
Elo rating systems via Markov Chains (xianblog.wordpress.com). Explores Elo ratings via Markov Chains, Bradley–Terry–Luce models, spectral gap optimization, SGD updates, and Bayesian ranking discussions
a (sunny, crisp) day at ICSDS 2025 (xianblog.wordpress.com). Bayesian learning sessions at ICSDS 2025 in Xi’an; proper prior minimaxity, variational inference, DIC, AI priors, martingale prediction, and urn-based math discussed by George, Margossian, Christensen, Rockova, Ng, Cappello, Ghiglietti
Kelly Criterion in Practice (vertoxquant.com). Explains Kelly criterion, fractional Kelly, continuous-time models, Bayesian updates, and multi-asset sizing with Python-like pseudocode
🤖 ML Theory & Symmetry
The shape of mathematics to come (hoyleanalytics.org). Explores AI in formal and non-formal mathematics, Kontorovich’s Shape of Math To Come, Lean, MathLib, AlphaProof, and implications for data science
Experiments to understand Singular Learning Theory's Free Energy & Local Learning Coefficient (LLC) (lesswrong.com). Explores Singular Learning Theory's free energy and LLC through SGLD-MCMC experiments, grokking, polynomials, and low-rank nets, with Python/Numpy-style analysis
NeuroIPS Spotlight 6: Equivariant Neural Networks for General Linear Symmetries on Lie Algebras (quantumformalism.substack.com). Equivariant Neural Networks on Lie algebras for general linear symmetries; GitHub implementation; Lie groups, manifolds, and tangent spaces discussed
How PyTorch Generates Random Numbers in Parallel on the GPU (blog.codingconfessions.com). Parallel RNGs on GPUs with Philox: counter-based randomness, 4x32 outputs, 10 rounds, CUDA/C++ templates, reproducible seeds in PyTorch
Construcción de intervalos de confianza para gráficos de calibración vía "bootstrap" y algunos asuntos más (datanalytics.com). Calibración de gráficos con bootstrap, intervalos de confianza y temas relacionados en estadística y ML usando R y Python
Voting as a way to surface the hidden reasons (cjauvin.github.io). Explores voting to reveal hidden motives behind majority preferences using aggregation by LLMs to surface underlying reasons
🧾 Proofs & Formal Methods
Understanding Vibe Proving (towardsdatascience.com). Explores verifiable Vibe Proving for LLMs, building a symbolic proof DSL and a checker to verify step-by-step math reasoning
Formal Scientific Modeling (johncarlosbaez.wordpress.com). Category theory for modeling in epidemiology; formal scientific modeling; collaboration insights with Nate Osgood, Xiaoyan Li, Kris Brown, Evan Patterson; software for epidemiology modeling
The good places to submit your papers (jesper.sikanda.be). Open-access publishing in type theory and interactive theorem proving; critiques of ACM policy; lists journals and conferences like ETAPS and Schloss Dagstuhl
The absoluteness of consistency (umsu.de). Pluralism about consistency faces worries about logic and meaning in arithmetic and English terms
🧠 Pure Math Research
The maximal length of the Erdős–Herzog–Piranian lemniscate in high degree (terrytao.wordpress.com). Terence Tao explores maximal lemniscate length for high-degree polynomials using Fryntov-Nazarov methods, stochastic tools, and Stokes’ theorem; includes AlphaEvolve visualizations
Beta/Gamma/Normal and Jacobi/Laguerre/Hermite (djalil.chafai.net). Beta/Gamma/Normal and Jacobi/Laguerre/Hermite: links between distributions and orthogonal polynomials, with Askey scheme and spectral operators
Combinatorial Species (unnamed.website). Introduction to combinatorial species, Lagrange inversion, Cayley’s formula, and proof ideas with functional perspectives
Uniformly Random High-Degree Regular Graphs are Asymptotically Almost Surely Link-Irregular (jix.one). High-degree regular graphs; distance sequences; unlink/link-irregularity; Bollobás distance identifications;, Béla Bollobás
Counting rectangles in a staircase polyomino (ckrao.wordpress.com). Counting rectangles in a staircase polyomino using combinatorics and binomial identities
📚 Academic Research
Abelian structure in approximate groups and Alon's conjecture on Ramsey Cayley graphs (arxiv:math). Shows large abelian structure inside approximate groups of solvable groups, yielding stronger bounds. Applies to Alon’s Ramsey Cayley graph conjecture and nonabelian Roth-type results too
Hyperbolicity and fundamental groups of complex quasi-projective varieties (II): via non-abelian Hodge theories (arxiv:math). Using non-abelian Hodge theory, proves generalized Green–Griffiths–Lang for quasi-projective varieties with big reductive π1-representations. Identifies special loci, advancing hyperbolicity classification in complex geometry and number-theory
An inverse theorem for all finite abelian groups via nilmanifolds (arxiv:math). Establishes an inverse theorem for Gowers norms on all finite abelian groups using only nilmanifolds. Links compact finite-rank nilspaces to nilmanifold factors, impacting dynamics broadly
Equidistribution of polynomial sequences in function fields: resolution of a conjecture (arxiv:math). Resolves a conjecture on equidistribution of polynomial sequences over function fields, giving sharp irrationality conditions. Extends analytic number theory methods to positive characteristic settings decisively
Seed-Prover 1.5: Mastering Undergraduate-Level Theorem Proving via Learning from Experience (arxiv:cs). ByteDance’s Seed-Prover 1.5 trains a Lean agent with large-scale reinforcement learning and lemma caching. Achieves state-of-the-art PutnamBench and FATE performance, narrowing formalization gaps for mathematicians
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