User:SDZeroBot/NPP sorting/STEM/Mathematics
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 | 34 unreviewed articles as of 22 July 2025
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| Created | Article | Extract | Class | Creator (# edits) | Notes |
|---|---|---|---|---|---|
| 2025-01-30 | Hadamard variation formula | In matrix theory, the Hadamard variation formula is a set of differential equations for how the eigenvalues of a time-varying Hermitian matrix with distinct eigenvalues change with time. | Stub | Cosmia Nebula (10962) | |
| 2024-12-04 | Weierstrass Nullstellensatz (Theorem in mathematics) | In mathematics, the Weierstrass Nullstellensatz is a version of the intermediate value theorem over a real closed field. It says: | Stub | TakuyaMurata (92630) | |
| 2025-04-25 | Co- and contravariant model structure (Induced model structure on slice categories) | In higher category theory in mathematics, co- and contravariant model structures are special model structures on slice categories of the category of simplicial sets. On them, postcomposition and pullbacks (due to its application in algebraic geometry also known as base change) induce adjoint functors, which with the model structures can even become Quillen adjunctions. | B | Samuel Adrian Antz (3102) | |
| 2025-02-07 | Neyman–Scott process | The Neyman–Scott process is a stochastic model used to describe the formation of clustered point patterns. Originally developed for modeling galaxy distributions by J. Neyman and Elizabeth L. Scott in 1952, it provides a framework for understanding phenomena characterized by clustering. | Stub | 7804j (3162) | |
| 2025-02-06 | Coalescence (statistics) | In statistics, coalescence refers to the merging of independent probability density functions. It contrasts with the simpler, erroneous approach called conflation. | Stub | Witger (1187) | |
| 2025-05-21 | Tom Petrie (journalist) (British journalist) | Tom Petrie (10 December 1938 – 10 March 2023) was a British journalist who served as news editor of The Sun from 1980 to 1992. | Start | RJ Harberts (43) | |
| 2025-05-28 | Anscombe-Aumann subjective expected utility model | In decision theory, the Anscombe-Aumann subjective expected utility model (also known as Anscombe-Aumann framework, Anscombe-Aumann approach, or Anscombe-Aumann representation theorem) is a framework to formalizing subjective expected utility (SEU) developed by Frank Anscombe and Robert Aumann. | Start | JoaoFrancisco1812 (205) | |
| 2025-05-20 | Savage's subjective expected utility model | In decision theory, Savage's subjective expected utility model (also known as Savage's framework, Savage's axioms, or Savage's representation theorem) is a formalization of subjective expected utility (SEU) developed by Leonard J. Savage in his 1954 book The Foundations of Statistics, based on previous work by Ramsey, von Neumann and de Finetti. | C | JoaoFrancisco1812 (205) | |
| 2024-12-20 | Extreme set | In mathematics, most commonly in convex geometry, an extreme set or face of a set in a vector space is a subset with the property that if for any two points some in-between point lies in , then we must have had . | Start | Rigmat (60) | |
| 2024-12-28 | Principal form of a polynomial | In mathematics and, more specifically, in theory of equations, the principal form of an irreducible polynomial of degree at least three is a polynomial of the same degree n without terms of degrees n−1 and n−2, such that each root of either polynomial is a rational function of a root of the other polynomial. | C | Reformbenediktiner (978) | |
| 2025-05-02 | Uniform distribution on a Stiefel manifold (Matrix-variate probability distribution) | The uniform distribution on a Stiefel manifold is a matrix-variate distribution that plays an important role in multivariate statistics. There one often encounters integrals over the orthogonal group or over the Stiefel manifold with respect to an invariant measure. | Start | Tensorproduct (1993) | |
| 2025-06-10 | High-dimensional Ising model | The Ising model is a prototypical model in statistical physics. The model consists of discrete variables that represent magnetic dipole moments of atomic "spins" that can be in one of two states (+1 or −1). The spins are arranged in a graph, usually a lattice (where the local structure repeats periodically in all directions), allowing each spin to interact with its neighbors. | C | Stepwise Continuous Dysfunction (841) | |
| 2025-05-23 | Ho–Kashyap rule (Iterative method for finding a linear decision boundary) | The Ho–Kashyap algorithm is an iterative method in machine learning for finding a linear decision boundary that separates two linearly separable classes. It was developed by Yu-Chi Ho and Rangasami L. Kashyap in 1965, and usually presented as a problem in linear programming. | C | Cosmia Nebula (10962) | |
| 2025-02-22 | Deshouillers–Dress–Tenenbaum theorem | The Deshouillers–Dress–Tenenbaum theorem (or in short DDT theorem) is a result from probabilistic number theory, which describes the probability distribution of a divisor of a natural number within the interval , where the divisor is chosen uniformly. | Start | Tensorproduct (1993) | |
| 2025-06-21 | Upper Confidence Bound (Family of machine learning algorithms for bandit problems) | Upper Confidence Bound (UCB) is a family of algorithms in machine learning and statistics for solving the multi-armed bandit problem and addressing the exploration–exploitation trade-off. UCB methods select actions by computing an upper confidence estimate of each action’s potential reward, thus balancing exploration of uncertain options with exploitation of those known to perform well. | C | Tomlovesfar (427) | |
| 2025-06-06 | Brownian motion and Riemann zeta function | In mathematics, the Brownian motion and the Riemann zeta function are two central objects of study in mathematics originating from different fields - probability theory and analytic number theory - that have mathematical connections between them. The relationships between stochastic processes derived from the Brownian motion and the Riemann zeta function show in a sense inuitively the stochastic behaviour underlying the Riemann zeta function. | Start | Tensorproduct (1993) | |
| 2025-06-20 | Marquis of Llevant de Mallorca (Hereditary title in the Spanish nobility) | Marquess of Llevant de Mallorca (Spanish: Marqués del Llevant de Mallorca) is a hereditary title in the Spanish nobility, created in 2025 by King Felipe VI. | Start | Vida0007 (16204) | |
| 2025-02-23 | Hartman–Watson distribution (Probability distribution related to Brownian motion) | The Hartman–Watson distribution is an absolutely continuous probability distribution which arises in the study of Brownian functionals. It is named after Philip Hartman and Geoffrey S. Watson, who encountered the distribution while studying the relationship between Brownian motion on the n-sphere and the von Mises distribution. | Start | Tensorproduct (1993) | |
| 2025-06-22 | Mike Titterington (Scottish statistician) | Mike Titterington (1945–2023) was a Scottish statistician known for the breadth of his work. Perhaps best known for his work on mixture models and neural networks, he also published in optimal design, smoothing techniques, image analysis, spatial statistics and hidden Markov models. | Start | Millerdl (206) | |
| 2025-06-20 | 1992 Gothenburg tram derailment (1992 transport incident in Gothenburg, Sweden) | "type": "FeatureCollection", "features": [ | FA | Christoffre (805) | |
| 2024-12-27 | Myerson value (Solution concept in cooperative game theory) | The Myerson value is a solution concept in cooperative game theory. It is a generalization of the Shapley value to communication games on networks. The solution concept and the class of cooperative communication games it applies to was introduced by Roger Myerson in 1977. | C | JoaoFrancisco1812 (205) | |
| 2024-12-08 | Two-proportion Z-test (Statistical method) | The Two-proportion Z-test (or, Two-sample proportion Z-test) is a statistical method used to determine whether the difference between the proportions of two groups, coming from a binomial distribution is statistically significant. This approach relies on the assumption that the sample proportions follow a normal distribution under the Central Limit Theorem, allowing the construction of a z-test for hypothesis testing and confidence interval estimation. | C | Talgalili (3227) | |
| 2025-05-20 | Tangled nature model | The tangled nature model is a model of evolutionary ecology developed by Christensen, Di Collobiano, Hall and Jensen. It is an agent-based model where individual 'organisms' interact, reproduce, mutate and die across many generations. A notable feature of the model is punctuated equilibrium, abrupt and spontaneous transitions between long lived stable states. | C | WikiNukalito (212) | |
| 2025-07-09 | Obvious strategyproofness (Strengthening of strategyproofness) | In mechanism design, obvious strategyproofness (OSP) is a strengthening of strategyproofness that captures a robustness of strategyproofness to cognitively-limited agents. | Start | Aviad.rubinstein (143) | |
| 2025-07-10 | Keller–Osserman conditions | The Keller–Osserman conditions are conditions, found independently in 1957 by Joseph Keller and Robert Osserman, on a single-variable function f which preclude the existence of solutions to the elliptic partial differential equation (PDE) | Start | MathKeduor7 (2548) | |
| 2025-06-17 | Slope chart (Type of chart) | A slope chart, also known as a slope graph, is a simple data visualization used to show changes between two numerical values for multiple categories. It connects paired data points across two vertical axes using straight lines, helping to highlight relative increases and decreases. | Start | Shafihafizmalik (19) | |
| 2025-01-30 | Data product (data product is a reusable, active, and standardized data asset designed to deliver measurable value to its users) | In data management and product management, a data product is a reusable, active, and standardized data asset designed to deliver measurable value to its users, whether internal or external, by applying the rigorous principles of product thinking and management. | Start | Jgperrin (102) | |
| 2025-07-11 | Bochner's theorem (orthogonal polynomials) | In the theory of orthogonal polynomials, Bochner's theorem is a characterization theorem of certain families of orthogonal polynomials as polynomial solutions to Sturm–Liouville problems with polynomial coefficients. | Start | Cosmia Nebula (10962) | |
| 2025-07-17 | Kensington Treaty (2025 treaty between the United Kingdom and Germany) | The Kensington Treaty, officially the Treaty between the United Kingdom of Great Britain and Northern Ireland and the Federal Republic of Germany on friendship and bilateral cooperation, is an agreement signed between the governments of the United Kingdom and Germany. | GA | JacobTheRox (2553) | |
| 2025-07-19 | The Data Economy: Tools and Applications (2025 economics textbook) | The Data Economy: Tools and Applications is a 2025 economics textbook by Isaac Baley and Laura Veldkamp. The book presents mathematical models and analytical frameworks for understanding data as an economic asset in modern economies. The authors treat data as a manufactured input shaped by economic incentives and examine its role in reducing uncertainty, creating feedback loops in business operations, and transforming market dynamics. | Start | Particleshow22 (968) | |
| 2025-05-01 | Measure theory in topological vector spaces (Subject in mathematics) | In mathematics, measure theory in topological vector spaces refers to the extension of measure theory to topological vector spaces. Such spaces are often infinite-dimensional, but many results of classical measure theory are formulated for finite-dimensional spaces and cannot be directly transferred. | C | Tensorproduct (1993) | |
| 2025-07-11 | Biquaternion functions (Functions of complex quaternions) | Functions in the complex plane can be extended to functions of complex quaternions (biquaternions). This is simple when the function can be expressed as a power series. One simply replaces the complex argument by the complex quaternion argument. If the power series converges everywhere in the complex plane, it does for the complex quaternions too. | C | DonaldWP (448) | |
| 2025-07-10 | Stochastic volatility jump models (Class of financial models with stochastic volatility and jumps) | Stochastic Volatility Jump Models (SVJ models) are a class of mathematical models in quantitative finance that combine stochastic volatility dynamics with discontinuous jumps in asset prices. These models aim to more accurately reflect the empirical characteristics of financial markets, particularly those that deviate from the assumptions of classical models such as the Black–Scholes model. | B | Ethan 65536 (10) | |
| 2025-06-21 | Golden field (Rational numbers with √5 added) | In mathematics, , sometimes called the golden field, is the real quadratic field obtained by extending the rational numbers with the square root of 5. The elements of this field are all of the numbers , where and are both rational numbers. | FA | Stepwise Continuous Dysfunction (841) |
![{\displaystyle z=\theta x+(1-\theta )y,\theta \in [0,1]}](/media/api/rest_v1/media/math/render/svg/c525d6671da7285923dd87ab2efe60532467f857)
![{\displaystyle [1,n]}](/media/api/rest_v1/media/math/render/svg/7c79af450e22e8fd23f28e6be4cb23a47b24c1ba)
Last updated by SDZeroBot operator / talk at 13:42, 22 July 2025 (UTC)