In quantum electrodynamics, the vertex function describes the coupling between a photon and an electron beyond the leading order of perturbation theory...
4 KB (492 words) - 14:34, 14 June 2025
vertex of a parabola is the place where it turns; hence, it is also called the turning point. If the quadratic function is in vertex form, the vertex...
17 KB (2,902 words) - 07:19, 20 July 2025
surface Vertex function, describing the interaction between a photon and an electron Vertex (anatomy), the highest point of the head Vertex (urinary...
2 KB (307 words) - 11:22, 4 May 2025
calculus on finite weighted graphs is a discrete calculus for functions whose domain is the vertex set of a graph with a finite number of vertices and weights...
22 KB (3,908 words) - 03:39, 1 March 2025
In mathematics, a vertex operator algebra (VOA) is an algebraic structure that plays an important role in two-dimensional conformal field theory and string...
53 KB (8,938 words) - 01:42, 23 May 2025
of Π ( 0 ) {\displaystyle \Pi (0)} . A similar reasoning using the vertex function leads to the renormalization of the electric charge e r {\displaystyle...
8 KB (1,635 words) - 00:45, 21 May 2025
self-energy function Σ {\displaystyle \Sigma } One-loop contribution to the vertex function Γ {\displaystyle \Gamma } that, being closed loops, imply the presence...
50 KB (6,659 words) - 23:56, 15 June 2025
Shader (redirect from Vertex and pixel shaders)
shaders. The first shader-capable GPUs only supported pixel shading, but vertex shaders were quickly introduced once developers realized the power of shaders...
18 KB (1,850 words) - 14:38, 2 August 2025
service function inside UK utility company United Utilities, Vertex was spun out as a separate company in 1996. In 2007, United Utilities sold Vertex to a...
3 KB (156 words) - 01:11, 2 August 2025
List of periodic functions Polar sine – a generalization to vertex angles Sinc function Klein, Felix (1924) [1902]. "Die goniometrischen Funktionen"...
77 KB (10,653 words) - 00:44, 29 July 2025
Graph coloring (redirect from Vertex chromatic number)
is just a vertex coloring of its line graph, and a face coloring of a plane graph is just a vertex coloring of its dual. However, non-vertex coloring problems...
70 KB (8,461 words) - 16:34, 7 July 2025
some fixed order). A vertex function fi for each vertex i. The vertex function maps the state of vertex i at time t to the vertex state at time t + 1 based...
4 KB (623 words) - 01:41, 1 August 2025
Glossary of graph theory (redirect from Peripheral vertex)
References Square brackets [ ] G[S] is the induced subgraph of a graph G for vertex subset S. Prime symbol ' The prime symbol is often used to modify notation...
109 KB (16,011 words) - 12:09, 30 June 2025
Graph labeling (redirect from Vertex labeling)
graph G = (V, E), a vertex labeling is a function of V to a set of labels; a graph with such a function defined is called a vertex-labeled graph. Likewise...
9 KB (1,060 words) - 22:11, 26 March 2024
mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, is a generalized function on the real numbers, whose value...
98 KB (14,494 words) - 06:48, 4 August 2025
via the Nvidia-created extension "vertex array range" or ATI's "vertex array object" extension. The following functions form the core of VBO access and...
10 KB (1,076 words) - 01:16, 2 August 2025
some fixed order). A vertex function fv for each vertex v. The vertex function maps the state of vertex v at time t to the vertex state at time t + 1 based...
10 KB (1,387 words) - 02:38, 26 December 2024
Feynman diagram (redirect from Interaction vertex)
meet at a vertex, which contributes a delta-function that ensures that the sum of the momenta are all equal. To compute a correlation function in the interacting...
93 KB (15,977 words) - 07:28, 1 August 2025
generating function is a representation of an infinite sequence of numbers as the coefficients of a formal power series. Generating functions are often...
87 KB (14,462 words) - 22:42, 3 May 2025
Clive Ward and Yasushi Takahashi to relate the wave function renormalization of the electron to its vertex renormalization factor, guaranteeing the cancellation...
10 KB (1,660 words) - 19:31, 7 June 2025
Biconnected component (redirect from Cut vertex)
Specifically, it processes n vertex additions and m edge additions in O(m α(m, n)) total time, where α is the inverse Ackermann function. This time bound is proved...
12 KB (1,398 words) - 11:33, 21 June 2025
divergences are well understood. For example, at the 1-loop order, the vertex function has both ultraviolet and infrared divergences. In contrast to the ultraviolet...
57 KB (7,777 words) - 06:43, 6 July 2025
theory, the edge space and vertex space of an undirected graph are vector spaces defined in terms of the edge and vertex sets, respectively. These vector...
3 KB (497 words) - 23:34, 14 April 2025
consolidated source connecting to each vertex in S {\displaystyle S} and a consolidated sink connected by each vertex in T {\displaystyle T} (also known as...
42 KB (5,243 words) - 08:03, 12 July 2025
Ice-type model (redirect from Six-vertex model)
In statistical mechanics, the ice-type models or six-vertex models are a family of vertex models for crystal lattices with hydrogen bonds. The first such...
21 KB (2,944 words) - 13:45, 9 June 2025
moonshine is now known to be underlain by a vertex operator algebra called the moonshine module (or monster vertex algebra) constructed by Igor Frenkel, James...
33 KB (4,488 words) - 07:37, 26 July 2025
Edge contraction (redirect from Vertex contraction)
f} be a function that maps every vertex in V ∖ { u , v } {\displaystyle V\setminus \{u,v\}} to itself, and otherwise, maps it to a new vertex w {\displaystyle...
8 KB (1,234 words) - 11:55, 1 January 2025
A*. The only difference is the update _ vertex ( ) {\displaystyle {\text{update}}\_{\text{vertex}}()} function. Compared to A*, the parent of a node in...
5 KB (631 words) - 19:26, 16 October 2024
point of the curvature function a vertex. This theorem has many generalizations, including a version for space curves where a vertex is defined as a point...
14 KB (1,729 words) - 01:54, 16 December 2024
first-order and largest correction in QED, is found by calculating the vertex function shown in the diagram on the right. The calculation was discovered by...
52 KB (5,976 words) - 14:42, 21 May 2025