definition 5.111 Symmetric and antisymmetric forms
open in the book ·
parts/02-mathematical-methods/03-linear-algebra-representations.tex:4818
· p. 152
- ground object -- no derivation owed
Rests on
-
depends_on
definition 5.110
Bilinear map
¶
-
depends_on
definition 5.37
Linear transformation
¶
-
depends_on
definition 4.33
Vector space
¶
-
depends_on
definition 4.8
Commutativity; abelian structure
¶
- depends_on definition 4.4 Internal binary operation; magma ¶
- depends_on definition 4.32 Field ¶
- depends_on definition 4.31 Module ¶
-
depends_on
definition 4.8
Commutativity; abelian structure
¶
-
depends_on
definition 4.33
Vector space
¶
-
depends_on
definition 5.37
Linear transformation
¶
- depends_on equation 5.137 eq:lin-bilinear-matrix ¶
Supports
- depends_on definition 28.32 The two quadratic forms ¶
- depends_on proposition 5.112 Symmetric–antisymmetric splitting ¶
-
depends_on
proposition 5.119
Normal form of a non-degenerate antisymmetric form
¶
-
depends_on
definition 5.135
The symplectic group
¶
- depends_on definition 22.40 Symplectic matrix ¶
-
depends_on
definition 24.4
Symplectic group
¶
-
depends_on
proposition 24.5
Properties of the symplectic group
¶
- depends_on remark 24.6 Connectedness, and what it rests on ¶
- depends_on remark 24.7 Contrast with the orthogonal group ¶
-
depends_on
proposition 24.30
Linear non-squeezing
¶
- depends_on theorem 24.31 Gromov's non-squeezing theorem ¶
-
depends_on
proposition 24.5
Properties of the symplectic group
¶
-
depends_on
lemma 22.20
The symplectic condition
¶
-
depends_on
corollary 22.24
Invariance of the phase-space volume
¶
- depends_on remark 22.25 This is Liouville's theorem ¶
-
depends_on
proposition 22.27
Properties of the Lagrange bracket
¶
- depends_on remark 22.28 Where the content of the fundamental brackets lies ¶
-
depends_on
proposition 22.30
Properties of the Poisson bracket
¶
- depends_on remark 22.31 The bracket is a Lie algebra structure ¶
- depends_on remark 22.33 What the duality is good for ¶
- depends_on remark 22.28 Where the content of the fundamental brackets lies ¶ ↺
-
depends_on
theorem 22.22
Poincaré
¶
- depends_on proposition 32.40 A Hamiltonian section preserves area ¶
- depends_on remark 22.23 What the invariant does not depend on ¶
-
depends_on
corollary 22.24
Invariance of the phase-space volume
¶
-
depends_on
proposition 5.139
Dimension of the symplectic group
¶
- depends_on proposition 24.5 Properties of the symplectic group ¶ ↺
- depends_on remark 22.21 The count ¶
- depends_on proposition 5.136 $\Sp(2n,\R)$ is a subgroup of $\GL(2n,\R)$ ¶
-
depends_on
theorem 5.138
A symplectic transformation has determinant $+1$
¶
- depends_on corollary 22.24 Invariance of the phase-space volume ¶ ↺
- depends_on corollary 24.19 Canonical transformations preserve phase volume ¶
- depends_on proposition 24.5 Properties of the symplectic group ¶ ↺
-
depends_on
definition 24.2
Symplectic vector space
¶
-
depends_on
definition 24.8
Symplectic manifold
¶
-
depends_on
definition 24.9
The canonical form on a cotangent bundle
¶
- depends_on proposition 24.10 The canonical form is symplectic and intrinsic ¶
-
depends_on
definition 24.14
Hamiltonian vector field
¶
- depends_on definition 24.43 Momentum map ¶
- depends_on definition 24.50 Prequantum operator ¶
- depends_on proposition 25.4 Leibniz rule and derivations ¶
- depends_on proposition 24.15 Poisson bracket from the symplectic form ¶
- depends_on theorem 24.16 The Hamiltonian flow preserves the symplectic form ¶
-
depends_on
definition 24.20
Liouville volume
¶
- depends_on proposition 26.25 The Liouville measure of a second-class surface ¶
- depends_on theorem 24.21 Liouville ¶
- depends_on theorem 24.24 Poincaré recurrence ¶
-
depends_on
definition 24.53
Real polarization and polarized sections
¶
- depends_on proposition 24.54 The vertical polarization gives wave mechanics ¶
-
depends_on
definition 24.49
Prequantum datum
¶
- depends_on definition 24.53 Real polarization and polarized sections ¶ ↺
- depends_on definition 24.50 Prequantum operator ¶ ↺
- depends_on proposition 24.56 The Bohr–Sommerfeld condition is a triviality condition on the prequantum holonomy ¶
-
depends_on
definition 24.17
Symplectomorphism
¶
- depends_on definition 25.6 Infinitesimal canonical transformation ¶
- depends_on definition 24.28 Ball and cylinder ¶
- depends_on definition 24.43 Momentum map ¶ ↺
- depends_on theorem 24.18 Symplectic form of the transformation condition ¶
-
depends_on
lemma 24.46
The level set of the momentum map is the symplectic
orthogonal of the orbit
¶
- depends_on proposition A.565 Freeness makes every value regular ¶
- depends_on theorem A.563 Marsden–Weinstein reduction ¶
- depends_on theorem A.568 The radical is the isotropy orbit ¶
- depends_on theorem 24.47 Marsden–Weinstein reduction ¶
-
depends_on
theorem 24.12
Darboux
¶
- depends_on definition 24.20 Liouville volume ¶ ↺
- depends_on remark 24.13 What Darboux's theorem forbids ¶
- depends_on theorem 24.16 The Hamiltonian flow preserves the symplectic form ¶ ↺
- depends_on theorem 24.38 Symplectic foliation, quoted ¶
- depends_on theorem 24.47 Marsden–Weinstein reduction ¶ ↺
-
depends_on
definition 24.9
The canonical form on a cotangent bundle
¶
-
depends_on
lemma A.564
Dimension and double orthogonal
¶
- depends_on proposition A.565 Freeness makes every value regular ¶ ↺
- depends_on theorem A.568 The radical is the isotropy orbit ¶ ↺
-
depends_on
proposition 24.3
Even dimension and the canonical basis
¶
- depends_on definition 24.4 Symplectic group ¶ ↺
- depends_on proposition 26.25 The Liouville measure of a second-class surface ¶ ↺
-
depends_on
definition 24.8
Symplectic manifold
¶
-
depends_on
proposition 26.19
Second-class constraints come in pairs
¶
-
depends_on
definition 26.20
Dirac bracket
¶
-
depends_on
definition 26.23
Gauge conditions
¶
- depends_on proposition 26.24 The Faddeev–Popov determinant ¶
- depends_on example 26.22 Holonomic constraints ¶
- depends_on theorem A.617 Jacobi identity for the Dirac bracket ¶
-
depends_on
theorem 26.21
Properties of the Dirac bracket
¶
- depends_on postulate 26.47 Dirac quantization ¶
-
depends_on
definition 26.23
Gauge conditions
¶
- depends_on proposition 26.24 The Faddeev–Popov determinant ¶ ↺
- depends_on proposition 26.25 The Liouville measure of a second-class surface ¶ ↺
-
depends_on
theorem 26.17
Counting the physical degrees of freedom
¶
- depends_on corollary A.642 The constraints are first class ¶
- depends_on definition 26.23 Gauge conditions ¶ ↺
-
depends_on
proposition 26.32
Constraint structure of the free Maxwell field
¶
- depends_on proposition 26.34 Proca constraints are second class ¶
- depends_on proposition 26.37 Constraint structure of Yang–Mills theory ¶
- depends_on proposition 26.34 Proca constraints are second class ¶ ↺
- depends_on proposition 26.29 Reparametrization invariance and the mass-shell constraint ¶
-
depends_on
theorem 26.42
The Hamiltonian structure of general relativity
¶
- depends_on notation A.636 Densities and smearing ¶
- depends_on proposition 26.43 The hypersurface-deformation algebra ¶
- depends_on theorem 26.21 Properties of the Dirac bracket ¶ ↺
-
depends_on
definition 26.20
Dirac bracket
¶
- depends_on proposition 24.3 Even dimension and the canonical basis ¶ ↺
-
depends_on
theorem A.68
Darboux
¶
-
depends_on
corollary A.69
No local invariants
¶
- depends_on remark 24.13 What Darboux's theorem forbids ¶ ↺
- depends_on example A.80 The phase space of one particle in space ¶
- depends_on theorem 24.12 Darboux ¶ ↺
-
depends_on
corollary A.69
No local invariants
¶
- depends_on theorem 5.138 A symplectic transformation has determinant $+1$ ¶ ↺
-
depends_on
definition 5.135
The symplectic group
¶
-
depends_on
theorem 5.116
Sylvester's law of inertia
¶
-
depends_on
definition 5.117
Signature
¶
-
depends_on
proposition 5.94
Principal axes of a real quadratic form
¶
- depends_on proposition 5.95 The focal polar equation of a conic ¶
-
depends_on
proposition 5.94
Principal axes of a real quadratic form
¶
-
depends_on
definition 10.6
Type of a second-order operator
¶
-
depends_on
definition 10.79
Parabolic boundary
¶
-
depends_on
theorem 10.80
Parabolic maximum principle
¶
- depends_on corollary 10.81 Uniqueness for the heat equation ¶
- depends_on proposition A.163 The viscous problem produces the entropy inequality ¶
-
depends_on
theorem 10.80
Parabolic maximum principle
¶
- depends_on example 10.9 ex:pde-three-types ¶
- depends_on proposition 10.25 The backward heat problem is ill posed ¶
- depends_on theorem A.83 Local canonical form for an elliptic operator with Hölder coefficients ¶
-
depends_on
theorem 10.8
The type is a coordinate invariant
¶
-
depends_on
lemma A.90
Affine normalization
¶
- depends_on lemma A.91 Smallness after rescaling ¶
-
depends_on
proposition 10.13
Canonical form in two variables
¶
- depends_on theorem A.83 Local canonical form for an elliptic operator with Hölder coefficients ¶ ↺
- depends_on theorem 10.55 d'Alembert's formula ¶
-
depends_on
proposition 10.11
What a characteristic surface is
¶
- depends_on corollary 10.12 Characteristics of the three canonical operators ¶
- depends_on definition A.102 Normal Cauchy problem of order $k$ ¶
- depends_on theorem 10.22 Cauchy–Kovalevskaya ¶
-
depends_on
lemma A.90
Affine normalization
¶
-
depends_on
definition 10.79
Parabolic boundary
¶
-
depends_on
proposition 30.30
Stability bounds
¶
-
depends_on
phenomenon 30.43
Two bulk wave speeds
¶
- depends_on phenomenon 30.47 The three seismic phases ¶
- depends_on remark 30.46 Why the plane-wave route, and not the potentials ¶
-
depends_on
phenomenon 30.32
Poisson contraction
¶
-
depends_on
proposition 30.33
Conversion among the moduli
¶
- depends_on definition 30.63 Flexural rigidity ¶
- depends_on example 30.35 From single crystals to the isotropic aggregate ¶
- depends_on proposition A.682 The plane-stress law ¶
- depends_on proposition 30.44 The speed ratio is fixed by Poisson's ratio ¶
- depends_on remark 30.36 How the moduli are actually measured ¶
-
depends_on
proposition 30.33
Conversion among the moduli
¶
-
depends_on
proposition 30.34
Minimum of the potential energy
¶
- depends_on example 30.35 From single crystals to the isotropic aggregate ¶ ↺
- depends_on theorem 30.42 Uniqueness in elastodynamics ¶
-
depends_on
phenomenon 30.43
Two bulk wave speeds
¶
- depends_on proposition 5.94 Principal axes of a real quadratic form ¶ ↺
- depends_on remark 7.107 What the Hessian is for ¶
-
depends_on
theorem 5.86
Simultaneous diagonalization of a definite pencil
¶
- depends_on corollary 5.89 Rayleigh–Ritz ¶
-
depends_on
proposition 5.88
Rayleigh quotient of a definite pencil
¶
-
depends_on
corollary 5.91
The operator norm of a real array
¶
- depends_on proposition 5.92 The eigenvalues do not control the norm ¶
- depends_on corollary 5.89 Rayleigh–Ritz ¶ ↺
-
depends_on
corollary 5.91
The operator norm of a real array
¶
-
depends_on
theorem 28.33
Normal modes
¶
- depends_on example 28.39 The linear triatomic molecule ¶
- depends_on proposition 28.40 Modes and dispersion of the loaded string ¶
- depends_on remark 28.34 Part II owes the simultaneous diagonalization of two quadratic forms ¶
- depends_on theorem 10.8 The type is a coordinate invariant ¶ ↺
-
depends_on
definition 5.117
Signature
¶
Neighborhood
Every logical edge within two steps of this node.
- declared and complete
- partly declared
- a check failed
- not graded
- declared in the source
- inferred from structure
Edges
| type | direction | node | provenance | where |
|---|---|---|---|---|
depends_on |
→ | Bilinear map | declared | parts/02-mathematical-methods/03-linear-algebra-representations.tex:4827 |
depends_on |
→ | eq:lin-bilinear-matrix | declared | parts/02-mathematical-methods/03-linear-algebra-representations.tex:4827 |
depends_on |
← | The two quadratic forms | declared | parts/03-classical-mechanics/11-oscillations-waves.tex:1081 |
depends_on |
← | Symmetric–antisymmetric splitting | declared | parts/02-mathematical-methods/03-linear-algebra-representations.tex:4841 |
depends_on |
← | Normal form of a non-degenerate antisymmetric form | declared | parts/02-mathematical-methods/03-linear-algebra-representations.tex:5106 |
depends_on |
← | Sylvester's law of inertia | declared | parts/02-mathematical-methods/03-linear-algebra-representations.tex:4998 |