λ-ring or lambda ring is a commutative ring together with some operations λn on it that behave like the exterior powers of vector spaces. Many rings considered...
12 KB (1,686 words) - 04:31, 16 August 2023
13 known rings are designated 1986U2R/ζ, 6, 5, 4, α, β, η, γ, δ, λ, ε, ν and μ. Their radii range from about 38,000 km for the 1986U2R/ζ ring to about...
53 KB (6,234 words) - 10:13, 27 August 2024
operations Ψk are ring homomorphisms of R(G) to itself, and on representations ρ of dimension d Ψ k ( ρ ) = N k ( Λ 1 ρ , Λ 2 ρ , … , Λ d ρ ) {\displaystyle...
7 KB (851 words) - 22:40, 19 September 2024
topological ring. A λ-ring is a commutative ring R together with operations λn: R → R that are like nth exterior powers: λ n ( x + y ) = ∑ 0 n λ i ( x ) λ n −...
99 KB (13,673 words) - 08:52, 19 October 2024
variable scalar element of the base ring, and In is the n × n identity matrix. Since each entry of the matrix ( λ I n − A ) {\displaystyle (\lambda I_{n}-A)}...
65 KB (11,228 words) - 01:45, 3 October 2024
Exp algebra (redirect from Exp ring)
Exp(G) has the structure of a λ-ring. The exp ring of an infinite cyclic group such as the integers is a polynomial ring in a countable number of generators...
3 KB (508 words) - 06:43, 23 December 2023
generally in any λ-ring. Adams operations ψk on K theory (algebraic or topological) are characterized by the following properties. ψk are ring homomorphisms...
4 KB (448 words) - 01:57, 21 February 2024
A vortex ring, also called a toroidal vortex, is a torus-shaped vortex in a fluid; that is, a region where the fluid mostly spins around an imaginary axis...
39 KB (5,020 words) - 23:06, 14 August 2024
Sagnac effect (redirect from Ring interferometry)
round trip in the interferometer ring. The difference in travel times, when multiplied by the optical frequency c / λ {\displaystyle c/\lambda } , determines...
54 KB (7,089 words) - 08:30, 22 June 2024
Meissa (redirect from Λ Orionis cluster)
Meissa /ˈmaɪsə/, designated Lambda Orionis (λ Orionis, abbreviated Lambda Ori, λ Ori) is a star in the constellation of Orion. It is a multiple star approximately...
19 KB (1,766 words) - 12:17, 26 October 2024
output bus waveguide, the wavelength of the light in each ring must be same. That is, λ 1 = λ 2 {\displaystyle \lambda _{1}=\lambda _{2}} for resonance...
26 KB (3,264 words) - 01:04, 4 November 2024
mathematics, the ring of polynomial functions on a vector space V over a field k gives a coordinate-free analog of a polynomial ring. It is denoted by...
9 KB (1,786 words) - 22:30, 7 September 2024
from above, with a dark center, the radius of the Nth bright ring is given by r N = [ λ R ( N − 1 2 ) ] 1 / 2 , {\displaystyle r_{N}=\left[\lambda R\left(N-{1...
11 KB (1,350 words) - 16:47, 25 September 2024
the algebraic multiplicity, det ( A − λ I ) = ( λ 1 − λ ) μ A ( λ 1 ) ( λ 2 − λ ) μ A ( λ 2 ) ⋯ ( λ d − λ ) μ A ( λ d ) . {\displaystyle \det(A-\lambda...
102 KB (13,582 words) - 05:47, 26 October 2024
Witt group (redirect from Witt ring (forms))
Witt ring W is the quotient. The exterior power gives the Grothendieck-Witt ring the additional structure of a λ-ring. The Grothendieck-Witt ring of C...
21 KB (3,169 words) - 19:33, 6 November 2024
Equivariant cohomology (redirect from Equivariant cohomology ring)
coefficient ring Λ {\displaystyle \Lambda } of the homotopy quotient E G × G X {\displaystyle EG\times _{G}X} : H G ∗ ( X ; Λ ) = H ∗ ( E G × G X ; Λ ) . {\displaystyle...
12 KB (1,813 words) - 15:56, 22 October 2024
Breach Science Publishers. ISBN 978-0-677-30020-7. OCLC 886098. ∞-groupoid λ-ring AB5 category Abelian category Accessible category Algebraic geometry Algebraic...
81 KB (8,649 words) - 11:46, 7 November 2024
ring and n a positive integer. Binomial rings were introduced by Hall (1969). Elliott (2006) showed that binomial rings are essentially the same as λ-rings...
2 KB (182 words) - 02:06, 19 August 2023
aromaticity with respect to the observed ring current. One method is called diamagnetic susceptibility exaltation Λ defined as the difference between the...
9 KB (1,050 words) - 04:36, 19 February 2024
over a ring R (whose identities are the zero 0 and one 1), where each block along the diagonal, called a Jordan block, has the following form: [ λ 1 0 ⋯...
16 KB (2,805 words) - 15:21, 20 January 2024
Dynkin system (redirect from Π–λ theorem)
weaker than those of 𝜎-algebra. Dynkin systems are sometimes referred to as 𝜆-systems (Dynkin himself used this term) or d-system. These set families have...
10 KB (2,349 words) - 16:01, 17 October 2024
{n}{d}}} generates a polynomial ring K[Λ(n,d)] over a field K. There is a homomorphism Φ(n,d) from K[Λ(n,d)] to the polynomial ring K[xi,j] in nd indeterminates...
4 KB (430 words) - 21:32, 26 October 2023
Quantum cohomology (redirect from Quantum cohomology ring)
torsion. Let R be any commutative ring with unit and Λ the ring of formal power series of the form λ = ∑ A ∈ H 2 ( X ) λ A e A , {\displaystyle \lambda =\sum...
10 KB (1,800 words) - 01:39, 28 September 2024
2, and a symmetric monoidal category if n ≥ 3. If Λ is a commutative ring, then X ↦ C ∗ ( Ω n X ; Λ ) {\displaystyle X\mapsto C_{*}(\Omega ^{n}X;\Lambda...
2 KB (266 words) - 17:03, 31 July 2024
Complex multiplication (redirect from Endomorphism ring of an elliptic curve)
of) the ring of integers o K {\displaystyle {\mathfrak {o}}_{K}} of K {\displaystyle K} , then the ring of analytic automorphisms of E = C / Λ {\displaystyle...
15 KB (2,071 words) - 23:40, 18 June 2024
\textstyle \log(1-tS)=-\sum _{i>0}{\frac {1}{i}}(tS)^{i}} ). Let Λ {\displaystyle \Lambda } be the ring of symmetric functions and R {\displaystyle R} a commutative...
27 KB (3,850 words) - 18:08, 27 February 2024
mathematics, especially in the field of algebra, a polynomial ring or polynomial algebra is a ring formed from the set of polynomials in one or more indeterminates...
52 KB (8,218 words) - 10:33, 30 October 2024
Dirichlet convolution (redirect from Dirichlet ring)
n ) { ∑ λ 1 + 2 λ 2 + ⋯ + k λ k = n λ 1 , λ 2 , … , λ k | n ( λ 1 + λ 2 + ⋯ + λ k ) ! 1 ! 2 ! ⋯ k ! ( − 1 ) k f ( λ 1 ) f ( λ 2 ) 2 ⋯ f ( λ k ) k } ...
16 KB (2,548 words) - 18:05, 14 October 2024