Expression: ∂_μF^{μν} = 0
Definitions
- F^{μν} is the raised light-sector field strength; ∂_μ is the spacetime derivative; ν is a spacetime index.
Explanation
The source-free Euler-Lagrange equation follows from the proposed light action in vacuum.
Cross-references: CF124, CF125, CF127, CF129
Source page: F6
Expression: F = q ∧ a
Definitions
- F is plane-wave field strength; q is wave covector; a is polarization one-form; ∧ is exterior product.
Explanation
Represents a closed plane-wave field as the wedge of its wave covector and polarization.
Cross-references: CF126, CF128, CF129, CF132
Source page: F6
F128 · CF128
Plane-wave co-closure
Status: EXACT
Expression: q_μF^{μν} = q²a^ν − (q·a)q^ν
Definitions
- q is wave covector; F is plane-wave field; a is polarization; q² and q·a use the Lorentz metric.
Explanation
Contracts the plane-wave field with its wave covector and exposes the transverse condition.
Cross-references: CF127, CF129, CF130
Source page: F6
Expression: q² = 0
Definitions
- q is the wave covector; q² is its Lorentz norm.
Explanation
Requires a nontrivial transverse vacuum wave to have a null wave covector.
Cross-references: CF126, CF128, CF130, CF131
Source page: F6
Expression: ω² = c²k²
Definitions
- ω is angular frequency; k is spatial wave number; c is light speed.
Explanation
Writes the null-wave condition as the standard vacuum dispersion relation.
Cross-references: CF129, CF131, CF137
Source page: F6
Expression: dim(q⊥/span{q}) = 2
Definitions
- q⊥ is the Lorentz-orthogonal polarization space; span{q} is the gauge direction.
Explanation
After quotienting the gauge direction, two independent transverse polarization modes remain.
Cross-references: CF127, CF129, CF132, CF133
Source page: F6
F132 · CF132
Hodge helicity sectors
Status: DEFINITION
Expression: F_± = F ∓ iJ_*F
Definitions
- F_± are helicity sectors; F is field strength; J_* is the bivector Hodge operator; i²=−1.
Explanation
Splits the field into the two complex Hodge-helicity sectors.
Cross-references: CF090, CF127, CF133
Source page: F6
F133 · CF133
Helicity eigenvalue relation
Status: EXACT
Expression: J_*F_± = ±iF_±
Definitions
- J_* is Hodge star; F_± are helicity fields; i is the imaginary unit.
Explanation
Shows that each helicity sector is an eigenvector of the Hodge operator.
Cross-references: CF090, CF132
Source page: F6
F134 · CF134
Vertex conservation of edge-transfer current
Status: EXACT
Expression: BJ = 0
Definitions
- B is vertex-edge incidence; J is edge-transfer current.
Explanation
Imposes vanishing net current at every vertex in the discrete cell.
Cross-references: CF017, CF121, CF135
Source page: F6
Expression: S_int = −g_AJᵀA
Definitions
- S_int is interaction action; g_A is coupling; J is edge current; A is edge potential.
Explanation
Couples the discrete current linearly to the edge potential.
Cross-references: CF121, CF125, CF134, CF136
Source page: F6
F136 · CF136
Discrete sourced light equation
Status: CONDITIONAL
Expression: κ_γCCᵀJ = g_AJ
Definitions
- κ_γ is light stiffness; C is edge-face incidence; J is edge current; g_A is source coupling.
Explanation
Gives the sourced discrete light equation from the quadratic action and current coupling.
Cross-references: CF122, CF125, CF135, CF137
Source page: F6
F137 · CF137
Coulomb-form static field
Status: CONDITIONAL
Expression: E(r) = g_AQ/(4πκ_γr²)
Definitions
- E(r) is radial static field; g_A is source coupling; Q is source charge; κ_γ is stiffness; r is radius.
Explanation
Provides the inverse-square static solution for a point source in the candidate light sector.
Cross-references: CF136, CF138
Source page: F6
Expression: U_ij = e^{i a_ij}
Definitions
- U_ij is a compact link; a_ij is a real link phase; i is the imaginary unit.
Explanation
Exponentiates the link phase to make the discrete variable compact and U(1)-valued.
Cross-references: CF139, CF140
Source page: F6
Expression: ψ_i → g_i^nψ_i, n ∈ ℤ
Definitions
- ψ_i is a site field; g_i is a U(1) group element; n is an integer representation weight.
Explanation
Records the integer-weight action of compact U(1) on site fields.
Cross-references: CF138, CF140
Source page: F6
Expression: A₄/V₄ ≅ ℤ₃
Definitions
- A₄ is the tetrahedral rotation group; V₄ is its Klein-four normal subgroup; ℤ₃ is the quotient.
Explanation
Identifies the residual three-class quotient of the tetrahedral rotation group.
Cross-references: CF006, CF138, CF139
Source page: F6
F141 · CF141
Exact tetrahedral group-valued Bianchi closure
Status: EXACT ALGEBRAIC
Expression: W₀₁₂W₀₂₃W₀₃₁(Ω₀₁W₁₂₃Ω₁₀⁻¹) = I
Definitions
- W_ijk are face holonomies; Ω₀₁ transports between cells; I is the group identity.
Explanation
States exact ordered holonomy closure around the tetrahedral boundary.
Cross-references: CF083, CF142, CF146
Source page: F7
Expression: log(eᴷ¹eᴷ²⋯) = ΣK_i + 1/2Σ[K_i,K_j] + O(K³)
Definitions
- K_i are near-identity Lie-algebra generators; [·,·] is a commutator; O(K³) is higher order.
Explanation
Relates group-valued holonomy products to additive curvature only in the local small-curvature limit.
Cross-references: CF141, CF146, CF147
Source page: F7
Expression: V₄,x = (2/3)L_c⁴[|detγ_x|/|detγ₀|]¹ᐟ²
Definitions
- V₄,x is causal four-volume at x; L_c is native length; γ_x and γ₀ are local and neutral metrics.
Explanation
Proposes a determinant-weighted four-volume while explicitly retaining non-uniqueness.
Cross-references: CF023, CF144, CF145
Source page: F7
Expression: Σ̂_A = Σ_A/L_c²; Γ̂_AB = ⟨Σ̂_A,Σ̂_B⟩
Definitions
- Σ_A is a bivector; Σ̂_A is dimensionless; Γ̂_AB is the six-space metric; L_c is native length.
Explanation
Normalizes bivectors by the native area so six-space contractions are dimensionless.
Cross-references: CF007, CF091, CF143, CF145
Source page: F7
Expression: B^dual_B = −2(V₄,x/L_c²)Γ̂_ABJ_*Σ̂_A
Definitions
- B^dual is candidate dual bivector; V₄,x is four-volume; Γ̂ is six-metric; J_* is Hodge star; Σ̂ is normalized bivector.
Explanation
Defines a dimensionally explicit dual-area candidate but leaves uniqueness open.
Cross-references: CF090, CF143, CF144, CF146
Source page: F7
Expression: R^disc_x = (2/L_c²)Γ̂^AB⟨Σ̂_A,K_B⟩; Σ_B⟨B^dual,J_*K⟩ = V₄,xR^disc_x
Definitions
- R^disc_x is discrete scalar curvature; K_B is curvature bivector; Γ̂ is six-metric; V₄,x is four-volume.
Explanation
Defines discrete curvature and its dual-area contraction, while leaving the continuum limit open.
Cross-references: CF141, CF143, CF145, CF147
Source page: F7
F147 · CF147
Microscopic holonomy-curvature action with explicit unfixed normalization
Status: CANDIDATE ACTION
Expression: S_micro^G/ℏ = ζ_microΣ⟨B^dual/L_c²,(J_*+βI)K(W)⟩_Γ
Definitions
- S_micro^G is microscopic gravitational action; ζ_micro is normalization; β is parity parameter; K(W) is holonomy curvature.
Explanation
Proposes a microscopic holonomy-curvature action with normalization still to be fixed.
Cross-references: CF142, CF145, CF146, CF148
Source page: F7
Expression: ζ_eff ≡ ζ_microN_disc = 1/(4C_Σ) = 5π/48 ≈ 0.327249
Definitions
- ζ_eff is effective normalization; ζ_micro is microscopic normalization; N_disc is discrete count; C_Σ is retained coefficient.
Explanation
Matches the microscopic normalization to the continuum source coefficient, without claiming microscopic uniqueness.
Cross-references: CF032, CF067, CF147, CF150
Source page: F7
Expression: |ΔS_m| = E_cellT_c = ℏA_cell
Definitions
- ΔS_m is one-update matter action; E_cell is cell energy; T_c is causal time; A_cell is loading.
Explanation
Relates one intrinsic-time matter update to both cell energy and dimensionless loading.
Cross-references: CF027, CF041, CF046, CF050
Source page: F7
Expression: E^G_ab = R_ab − (1/2)γ_abR = 2C_Σ(cT_c²/ℏ)H_ab
Definitions
- E^G_ab is Einstein tensor; R_ab and R are curvature; γ_ab is metric; H_ab is source; C_Σ is coefficient.
Explanation
States the continuum tensor source equation obtained from the retained action matching.
Cross-references: CF032, CF102, CF111, CF148
Source page: F7