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1. Projective geometry: In mathematics, projective geometry is the study of geometric properties that are invariant with respect to projective transformations. This means that, compared to elementary Euclidean geometry, projective geometry has a different setting, projective space, and a selective set of basic ... (Type of geometry) [100%] 2023-01-08 [Projective geometry] [Geometry]...
2. Projective geometry: The branch of geometry in which one studies properties of figures that do not change under projective transformations (cf. Projective transformation), e.g. (Mathematics) [100%] 2022-12-13
3. Projective differential geometry: In mathematics, projective differential geometry is the study of differential geometry, from the point of view of properties of mathematical objects such as functions, diffeomorphisms, and submanifolds, that are invariant under transformations of the projective group. This is a mixture ... (Geometry) [81%] 2023-09-02 [Differential geometry] [Projective geometry]...
4. Spread (projective geometry): A frequently studied problem in discrete geometry is to identify ways in which an object can be covered by other simpler objects such as points, lines, and planes. In projective geometry, a specific instance of this problem that has numerous ... (Projective geometry) [81%] 2024-01-22 [Projective geometry]
5. Arc (projective geometry): A $k$-arc in the Desarguesian projective plane $\operatorname{PG} ( 2 , q )$ over the Galois field of order $q$ is a set of $k$ points, no three of which are collinear. It is immediate that $k \leq q + 2$, but ... (Mathematics) [81%] 2023-10-13
6. Duality (projective geometry): In geometry, a striking feature of projective planes is the symmetry of the roles played by points and lines in the definitions and theorems, and (plane) duality is the formalization of this concept. There are two approaches to the subject ... (Projective geometry) [81%] 2021-12-21 [Projective geometry] [Duality theories]...
7. Arc (projective geometry): An (simple) arc in finite projective geometry is a set of points which satisfies, in an intuitive way, a feature of curved figures in continuous geometries. Loosely speaking, they are sets of points that are far from "line-like" in ... (Projective geometry) [81%] 2023-11-30 [Projective geometry] [Incidence geometry]...
8. Spread (projective geometry): A frequently studied problem in discrete geometry is to identify ways in which an object can be covered by other simpler objects such as points, lines, and planes. In projective geometry, a specific instance of this problem that has numerous ... (Projective geometry) [81%] 2023-04-26 [Projective geometry]
9. Arc (projective geometry): An (simple) arc in finite projective geometry is a set of points which satisfies, in an intuitive way, a feature of curved figures in continuous geometries. Loosely speaking, they are sets of points that are far from "line-like" in ... (Projective geometry) [81%] 2023-11-30 [Projective geometry] [Incidence geometry]...
10. Projective differential geometry: The branch of geometry in which one studies differential-geometric properties of curves and surfaces that are preserved under projective transformations. Such properties include, e.g., the concept of an asymptotic direction or, more generally, of conjugate directions, of an ... (Mathematics) [81%] 2023-09-22
11. Projective Geometry Playground: This learning resource was created as Projective Geometry Playground in which learners/students can test a projective mapping with a simple WebApp that runs completely in the browser as runtime environment (see AppLSAC). A browser is available on almost every ... [81%] 2024-03-29 [Wiki2Reveal]
12. Oriented projective geometry: Oriented projective geometry is an oriented version of real projective geometry. Whereas the real projective plane describes the set of all unoriented lines through the origin in R, the oriented projective plane describes lines with a given orientation. [81%] 2024-04-10 [Projective geometry]
13. Noncommutative projective geometry: In mathematics, noncommutative projective geometry is a noncommutative analog of projective geometry in the setting of noncommutative algebraic geometry. By definition, the Proj of a graded ring R is the quotient category of the category of finitely generated graded modules ... [81%] 2024-06-15 [Geometry]
14. Noncommutative projective geometry: In mathematics, noncommutative projective geometry is a noncommutative analog of projective geometry in the setting of noncommutative algebraic geometry. By definition, the Proj of a graded ring R is the quotient category of the category of finitely generated graded modules ... [81%] 2025-03-31 [Fields of geometry]