In mathematics, the rational normal curve is a smooth, rational curve C of degree n in projective n-space Pn. It is a simple example of a projective variety;...
5 KB (918 words) - 22:07, 19 August 2020
Veronese surface (section Rational normal curve)
= 1 , {\displaystyle n=1,} the Veronese variety is known as the rational normal curve, of which the lower-degree examples are familiar. For n = 1 , d...
5 KB (941 words) - 05:06, 15 August 2024
relevant variables are normally distributed. A normal distribution is sometimes informally called a bell curve. However, many other distributions are bell-shaped...
148 KB (22,607 words) - 17:11, 14 May 2025
Twisted cubic (redirect from Rational normal cubic)
complete intersection. It is the three-dimensional case of the rational normal curve, and is the image of a Veronese map of degree three on the projective...
4 KB (629 words) - 23:27, 8 February 2022
of m or n is 0, the rational normal scroll becomes a cone over a rational normal curve. If m < n then the rational normal curve of degree m is uniquely...
2 KB (193 words) - 00:38, 11 January 2023
lemniscate Quartic plane curve Rational normal curve Riemann–Roch theorem for algebraic curves Weber's theorem (Algebraic curves) Riemann–Hurwitz formula...
49 KB (7,993 words) - 07:00, 5 May 2025
Canonical bundle (redirect from Canonical curve)
When C is a hyperelliptic curve, the canonical curve is a rational normal curve, and C a double cover of its canonical curve. For example if P is a polynomial...
16 KB (2,548 words) - 15:55, 15 January 2025
This is the meaning of "normal" in the phrases rational normal curve and rational normal scroll. Every regular scheme is normal. Conversely, Zariski (1939...
7 KB (1,087 words) - 19:07, 14 June 2024
(straight) lines. It can also be defined as a curve whose points are at a constant normal distance from a given curve. These two definitions are not entirely...
33 KB (4,979 words) - 23:56, 14 December 2024
Hypotrochoid Lissajous curve Poinsot's spirals Rational normal curve Rose curve Bicuspid curve Cassinoide Cubic curve Elliptic curve Watt's curve Bolza surface...
7 KB (530 words) - 16:34, 2 December 2024
convex polytope formed as a convex hull of n distinct points on a rational normal curve in Rd, where n is greater than d. These polytopes were studied by...
5 KB (776 words) - 21:00, 16 January 2024
mathematics, an elliptic curve is a smooth, projective, algebraic curve of genus one, on which there is a specified point O. An elliptic curve is defined over...
54 KB (8,433 words) - 17:05, 17 March 2025
List of mathematical shapes (section Rational curves)
Poinsot's spirals Rational normal curve Rose curve Bicuspid curve Cassini oval Cassinoide Cubic curve Elliptic curve Watt's curve Butterfly curve Elkies trinomial...
47 KB (3,579 words) - 21:06, 4 December 2024
Projective line (category Algebraic curves)
A rational curve is a curve that is birationally equivalent to a projective line (see rational variety); its genus is 0. A rational normal curve in projective...
10 KB (1,430 words) - 18:57, 17 March 2025
of projective spaces Rational normal curve Conics, Pascal's theorem, Brianchon's theorem Twisted cubic Elliptic curve, cubic curve Elliptic function, Jacobi's...
7 KB (600 words) - 19:55, 10 January 2024
moment curve is a parabola, and in three-dimensional space it is a twisted cubic. Its closure in projective space is the rational normal curve. Moment...
7 KB (927 words) - 20:12, 17 August 2023
variety X. See also function field (scheme theory). rational normal curve A rational normal curve is the image of P 1 → P d , ( s : t ) ↦ ( s d : s d...
82 KB (12,496 words) - 00:02, 12 April 2025
Homogeneous coordinate ring (redirect from Projectively normal)
even in the case of curves. There are examples where the minimal free resolution is known explicitly. For a rational normal curve it is an Eagon–Northcott...
9 KB (1,275 words) - 06:23, 6 March 2025
Parabola (redirect from Parabolic curve)
parallel. In algebraic geometry, the parabola is generalized by the rational normal curves, which have coordinates (x, x2, x3, ..., xn); the standard parabola...
80 KB (13,423 words) - 04:02, 29 April 2025
P1 are depicted by a rational normal curve in Pn, then the group of the projective transformations of Pn that preserve the curve is isomorphic to the...
3 KB (281 words) - 23:18, 12 April 2025
gave us the notion of so-called rational expectations.) Expectational equilibrium gives us the long-term Phillips curve. First, with λ less than unity:...
41 KB (5,622 words) - 23:41, 21 April 2025
closed immersion for d ≥ 1 {\displaystyle d\geq 1} , with image a rational normal curve of degree d in P d {\displaystyle \mathbb {P} ^{d}} . Therefore...
40 KB (6,874 words) - 03:53, 15 May 2025
choice theory, the income-consumption curve (also called income expansion path and income offer curve) is a curve in a graph in which the quantities of...
11 KB (1,330 words) - 13:20, 10 August 2024
give ample examples of rational maps which are not birational. For example, Belyi's theorem states that every algebraic curve C {\displaystyle C} admits...
8 KB (1,492 words) - 08:00, 14 January 2025
space curve for all t in the instantaneous direction of motion. At t = c, the space curve has a tangent vector dr(t)/dt|t = c, and the hyperplane normal to...
21 KB (3,563 words) - 08:09, 8 April 2025
(conic section) Directrix (ellipse) Directrix (generatrix) Directrix (rational normal scroll) Directrix is a spaceship in the Lensman series of novels by...
510 bytes (97 words) - 02:30, 27 February 2025
In algebraic geometry, the normal degree of a rational curve C on a surface is defined to be –K.C–2 where K is the canonical divisor of the surface. Sommese...
654 bytes (67 words) - 01:45, 28 January 2025
Supply and demand (redirect from Supply Curve)
determined in equilibrium. A supply schedule, depicted graphically as a supply curve, is a table that shows the relationship between the price of a good and...
36 KB (4,848 words) - 22:22, 2 April 2025
see rational normal curve. 2. Orthogonal to the tangent space, such as a line orthogonal to the tangent space or the normal bundle. 3. A normal intersection...
81 KB (11,193 words) - 03:00, 26 December 2024
Wavefront .obj file (section Vertex normal indices)
of rational trimming curves. Faces are defined using lists of vertex, texture and normal indices in the format vertex_index/texture_index/normal_index...
20 KB (2,478 words) - 03:53, 18 March 2025