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 | 38 unreviewed articles as of 18 May 2025
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| Created | Article | Extract | Class | Creator (# edits) | Notes |
|---|---|---|---|---|---|
| 2024-10-29 | Rational homology sphere (Manifold with the same rational homology groups as a sphere) | In algebraic topology, a rational homology -sphere is an -dimensional manifold with the same rational homology groups as the -sphere. These serve, among other things, to understand which information the rational homology groups of a space can or cannot measure and which attenuations result from neglecting torsion in comparison to the (integral) homology groups of the space. | Start | Samuel Adrian Antz (2728) | |
| 2024-10-29 | Rational homotopy sphere (Manifold with the same rational homotopy groups as a sphere) | In algebraic topology, a rational homotopy -sphere is an -dimensional manifold with the same rational homotopy groups as the -sphere. These serve, among other things, to understand which information the rational homotopy groups of a space can or cannot measure and which attenuations result from neglecting torsion in comparison to the (integral) homotopy groups of the space. | Start | Samuel Adrian Antz (2728) | |
| 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 (9999) | |
| 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 (92091) | |
| 2024-12-08 | Two-proportion Z-test | 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 (3225) | |
| 2024-10-28 | Eventually stable polynomial | A non-constant polynomial with coefficients in a field is said to be eventually stable if the number of irreducible factors of the -fold iteration of the polynomial is eventually constant as a function of . The terminology is due to R. | Start | Hydrohydro (14) | |
| 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 (912) | |
| 2025-02-23 | Hartman–Watson distribution | 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 (1945) | |
| 2025-03-05 | Modification (mathematics) | In mathematics, specifically category theory, a modification is an arrow between natural transformations. It is a 3-cell in the 3-category of 2-cells (where the 2-cells are natural transformations, the 1-cells are functors, and the 0-cells are categories). | Stub | Quezergue (126) | |
| 2024-12-27 | Myerson value | 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 (170) | |
| 2024-11-21 | Context-free language reachability (Algorithmic problem with applications to program analysis) | Context-free language reachability is an algorithmic problem with applications in static program analysis. Given a graph with edge labels from some alphabet and a context-free grammar over that alphabet, the problem is to determine whether there exists a path through the graph such that the concatenation of the labels along the path is a string accepted by the grammar. | C | Siddharthist (1873) | |
| 2025-03-03 | Disappearance and killing of Emily Pike (2025 disappearance and death) | On February 14, 2025, the remains of 14-year old Emily Pike were found off Highway 60 in the state of Arizona; the death is being investigated as a homicide. | Start | LunaEclipse (11927) | |
| 2025-03-03 | Density topology (Wikimedia article stub) | In mathematics, the density topology on the real numbers is a topology on the real line that is different (strictly finer), but in some ways analogous, to the usual topology. It is sometimes used in real analysis to express or relate properties of the Lebesgue measure in topological terms. | Start | Gro-Tsen (852) | |
| 2025-04-05 | Simons cone | In geometry and geometric measure theory, the Simons cone refers to a specific minimal hypersurface in that plays a crucial role in resolving Bernstein's problem in higher dimensions. It is named after American mathematician Jim Simons. | Start | GregariousMadness (3226) | |
| 2025-04-04 | Minimal fibration | In mathematics, especially homotopy theory, a minimal fibration is used to approximate fibrations between presheaves. A minimal fibration has a defining proprety that an equivalence between them (in some sense) is an isomorphism. Thus, minimal fibrations can be used to study some coherence questions up to equivalences. | Stub | TakuyaMurata (92091) | |
| 2025-04-01 | Complex quaternion functions | The exp, sqrt, and log complex quaternion functions are treated and then applied to obtain the general Lorentz transformation and obtain a simple technique to represent it as a boost followed by a rotation or vice versa. What's treated is how to compute these functions, when they are defined, and what their multiplicities are. | C | DonaldWP (199) | |
| 2025-03-06 | Namioka's theorem | In functional analysis, Namioka's theorem is a result concerning the relationship between separate continuity and joint continuity of functions defined on product spaces. Named after mathematician Isaac Namioka, who proved it in his 1974 paper Separate Continuity and Joint Continuity published in the Pacific Journal of Mathematics, the theorem establishes conditions under which a separately continuous function must be jointly continuous on a topologically large subset of its domain. | Start | GregariousMadness (3226) | |
| 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 (1945) | |
| 2025-03-10 | Discrimination ratio | In Six Sigma, the discrimination ratio or reliability design index is a performance metric of attribute agreement analysis which assesses the level of agreement between how well the appraisers or inspectors can differentiate between acceptable and unacceptable items. | Stub | GobsPint (2382) | |
| 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 (2728) | |
| 2025-03-02 | List of winners of the Liga 4 and predecessors | A national fourth-tier league of Indonesian football was initially established as the Liga Indonesia Third Division in 2005. Following the formation of the Indonesia Super League in 2008 as the new top-tier competition, the Liga Indonesia Second Division was relegated to the fourth tier. | Start | Fau Tzy (24984) | |
| 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 (101) | |
| 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 (2547) | |
| 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) | |
| 2025-04-18 | Gwet's AC1 | Gwet's AC1 coefficient is a statistical measure used to assess inter-rater reliability (IRR) for categorical data. Developed by Dr. Kilem Li Gwet, it quantifies the degree of agreement between two or more raters beyond the level expected by chance. AC1 was specifically designed to address the limitations of traditional IRR measures like Cohen's kappa and Fleiss' kappa, particularly their sensitivity to trait prevalence and marginal distributions. | B | Sobesurfski (424) | |
| 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) | |
| 2025-05-02 | Uniform distribution on a Stiefel manifold | 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 (1945) | |
| 2025-03-26 | Multivariate logistic regression | Multivariate logistic regression is a type of data analysis that predicts any number of outcomes based on multiple independent variables. It is based on the assumption that the natural logarithm of the odds has a linear relationship with independent variables. | C | Faster than Thunder (2178) | |
| 2025-04-30 | Defense Office of Prepublication and Security Review | The Defense Office of Prepublication and Security Review (DOPSR) is a department of the United States Armed Forces with the the Pentagon, under Washington Headquarters Services, that supports the review and authorized release of government materials from members and veterans of the military and the United States Intelligence Community, including reviews of classified and restricted information. | Start | Very Polite Person (4074) | |
| 2024-10-20 | Integral of a correspondence | In mathematics, the integral of a correspondence is a generalization of the integration of single-valued functions to correspondences (i.e., set-valued functions). | C | JoaoFrancisco1812 (170) | |
| 2025-03-12 | Debrid (download debrid software) | A debrid service is a multi-hosting service that grants users the ability to download files at high speeds from various file-hosting websites without limitations such as speed throttling or long wait times. These services purchase premium access to various file hosts and then provide users with temporary premium links to the respective hosts. | Stub | Computermichael (503) | |
| 2025-04-22 | Subdivision (simplicial set) (Endofunctor on the category of simplicial sets) | In higher category theory in mathematics, the subdivision of simplicial sets (subdivision functor or Sd functor) is an endofunctor on the category of simplicial sets. It refines the structure of simplicial sets in a purely combinatorical way without changing constructions like the geometric realization. | C | Samuel Adrian Antz (2728) | |
| 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 (1945) | |
| 2025-04-24 | Inertia stack | In mathematics, especially in differential and algebraic geometries, an inertia stack of a groupoid X is a stack that parametrizes automorphism groups on and transitions between them. It is commonly denoted as and is defined as inertia groupoids as charts. | Stub | TakuyaMurata (92091) | |
| 2025-03-26 | Bellezas Globales de Nicaragua (National beauty pageant in Nicaragua) | Bellezas Globales de Nicaragua is a national beauty pageant in Nicaragua that selects the representatives for Nicaragua to compete at Miss World, Miss International, Miss Supranational and Miss Cosmo. Previously the organization franchise the Miss World Nicaragua under Denis Dávila directorship however beginning 2025 the new directors are Amarilis Soza and Roberto Ñurinda. | Start | Mayanicaragua (4072) | |
| 2024-11-12 | Global Sensitivity Analysis. The Primer (Book published in 2007) | Global Sensitivity Analysis. The Primer by Andrea Saltelli and other practitioners is an introduction to sensitivity analysis of model output, a discipline that studies how the uncertainty in model input and model assumptions propagates to model output and model-based inference. | C | Gipsywriting (201) | |
| 2025-04-13 | Meta-Labeling (Machine learning overlay technique for position sizing and trade filtering) | Meta-labeling, also known as corrective AI, is a machine learning (ML) technique utilized in quantitative finance to enhance the performance of investment and trading strategies, developed in 2017 by Marcos López de Prado at Guggenheim Partners and Cornell University. | C | Dsr02014 (33) | |
| 2025-05-06 | Cryptography Primitives Library | The Intel Cryptography Primitives Library is an extensive library of ready-to-use cryptographic functions for multimedia, enterprise data, embedded, communications, and scientific and technical applications, optimized for diverse Intel architectures. Its royalty-free APIs help developers take advantage of single instruction, multiple data (SIMD) instructions, and the latest advanced encryption standard instruction set extensions (AES-NI) in the Intel microarchitecture. | Start | Roboima (37) |
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Last updated by SDZeroBot operator / talk at 13:34, 18 May 2025 (UTC)
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