Geometric Integration Theory
, by Hassler Whitney- ISBN: 9780691079721 | 0691079722
- Cover: Nonspecific Binding
- Copyright: 12/8/2015
Preface | p. iii |
Introduction | p. 3 |
The general problem of integration | |
The integral as a function of the domain | p. 3 |
Polyhedral chains | p. 5 |
Two continuity hypotheses | p. 5 |
A further continuity hypothesis | p. 6 |
Some examples | p. 7 |
The case r = n | p. 7 |
The r-vector of an oriented r-cell | p. 8 |
On r-vectors and boundaries of (r + 1)-cells | p. 9 |
Grassmann algebra | p. 10 |
The dual algebra | p. 11 |
Integration of differential forms | p. 13 |
Some classical topics | |
Grassmann algebra in metric oriented n-space | p. 13 |
The same, n = 3 | p. 14 |
The differential of a mapping | p. 15 |
Jacobians | p. 16 |
Transformation of the integral | p. 17 |
Smooth manifolds | p. 18 |
Particular forms of integrals in 3-space | p. 19 |
The Theorem of Stokes | p. 21 |
The exterior differential | p. 21 |
Some special formulas in metric oriented E[superscript 3] | p. 23 |
An existence theorem | p. 24 |
De Rham's Theorem | p. 25 |
Indications of general theory | |
Normed spaces of chains and cochains | p. 27 |
Continuous chains | p. 28 |
On 0-dimensional integration | p. 30 |
Classical theory | |
Grassmann algebra | |
Multivectors | p. 35 |
Multicovectors | p. 37 |
Properties of V[subscript r] and V[superscript r] | p. 38 |
Alternating r-linear functions | p. 39 |
Use of coordinate systems | p. 40 |
Exterior products | p. 41 |
Interior products | p. 42 |
n-vectors in n-space | p. 44 |
Simple multivectors | p. 44 |
Linear mappings of vector spaces | p. 46 |
Duality | p. 47 |
Euclidean vector spaces | p. 48 |
Mass and comass | p. 52 |
Mass and comass of products | p. 55 |
On projections | p. 56 |
Differential forms | |
The differential of a smooth mapping | p. 58 |
Some properties of differentials | p. 60 |
Differential forms | p. 61 |
Smooth mappings | p. 62 |
Use of coordinate systems | p. 63 |
Jacobians | p. 66 |
The inverse and implicit function theorems | p. 68 |
The exterior differential | p. 70 |
A representation of vectors and covectors | p. 74 |
Smooth manifolds | p. 75 |
The tangent space of a smooth manifold | p. 75 |
Differential forms in smooth manifolds | p. 76 |
A characterization of the exterior differential | p. 77 |
Riemann integration theory | |
The r-vector of an oriented r-simplex | p. 80 |
The r-vector of an r-chain | p. 81 |
Integration over cellular chains | p. 82 |
Some properties of integrals | p. 83 |
Relation to the Riemann integral | p. 84 |
Integration over open sets | p. 85 |
The transformation formula | p. 87 |
Proof of the transformation formula | p. 89 |
Transformation of the Riemann integral | p. 92 |
Integration in manifolds | p. 92 |
Stokes' Theorem for a parallelepiped | p. 94 |
A special case of Stokes' Theorem | p. 96 |
Sets of zero s-extent | p. 97 |
Stokes' Theorem for standard domains | p. 99 |
Proof of the theorem | p. 101 |
Regular forms in Euclidean space | p. 103 |
Regular forms in smooth manifolds | p. 106 |
Stokes' Theorem for standard manifolds | p. 108 |
The iterated integral in Euclidean space | p. 110 |
Smooth manifolds | |
Manifolds in Euclidean space | |
The imbedding theorem | p. 113 |
The compact case | p. 113 |
Separation of subsets of E[superscript m] | p. 114 |
Regular approximations | p. 115 |
Proof of Theorem 1A, M compact | p. 115 |
Admissible coordinate systems in M | p. 116 |
Proof of Theorem 1A, M not compact | p. 117 |
Local properties of M in E[superscript m] | p. 117 |
On n-directions in E[superscript m] | p. 119 |
The neighborhood of M in E[superscript m] | p. 120 |
Projection along a plane | p. 123 |
Triangulation of manifolds | |
The triangulation theorem | p. 124 |
Outline of the proof | p. 124 |
Fullness | p. 125 |
Linear combinations of edge vectors of simplexes | p. 127 |
The quantities used in the proof | p. 128 |
The complex L | p. 128 |
The complex L* | p. 129 |
The intersections of M with L* | p. 130 |
The complex K | p. 131 |
Imbedding of simplexes in M | p. 132 |
The complexes K[subscript p] | p. 133 |
Proof of the theorem | p. 134 |
Cohomology in manifolds | |
[mu]-regular forms | p. 135 |
Closed forms in star shaped sets | p. 136 |
Extensions of forms | p. 137 |
Elementary forms | p. 138 |
Certain closed forms are derived | p. 141 |
Isomorphism of cohomology rings | p. 142 |
Periods of forms | p. 143 |
The Hopf invariant | p. 143 |
On smooth mappings of manifolds | p. 145 |
Other expressions for the Hopf invariant | p. 147 |
General theory | |
Abstract integration theory | |
Polyhedral chains | p. 152 |
Mass of polyhedral chains | p. 153 |
The flat norm | p. 154 |
Flat cochains | p. 156 |
Examples | p. 158 |
The sharp norm | p. 159 |
Sharp cochains | p. 160 |
Characterization of the norms | p. 163 |
An algebraic criterion for a multicovector | p. 165 |
Sharp r-forms | p. 167 |
Examples | p. 171 |
The semi-norms [vertical bar A vertical bar superscript flat], [vertical bar A vertical bar superscript sharp] are norms | p. 173 |
Weak convergence | p. 175 |
Some relations between the spaces of chains and cochains | p. 177 |
The [rho]-norms | p. 178 |
The mass of chains | p. 179 |
Separability of spaces of chains | p. 181 |
Non-separability of spaces of cochains | p. 182 |
Some relations between chains and functions | |
Continuous chains on the real line | p. 187 |
0-chains in E[superscript 1] defined by functions of bounded variation | p. 190 |
Sharp functions times 0-chains | p. 193 |
The part p. 194 | |
Functions of bounded variation in E[superscript 1] defined by 0-chains | p. 196 |
Some related analytical theorems | p. 198 |
Continuous r-chains in E[superscript n] | p. 199 |
On compact cochains | p. 202 |
The boundary of a smooth chain | p. 204 |
Continuous chains in smooth manifolds | p. 205 |
General properties of chains and cochains | |
Sharp functions times chains | p. 208 |
Sharp functions times cochains | p. 212 |
Supports of chains and cochains | p. 213 |
On non-compact chains | p. 217 |
On polyhedral approximations | p. 219 |
The r-vector of an r-chain | p. 220 |
Sharp chains at a point | p. 221 |
Molecular chains are dense | p. 223 |
Flat r-chains in E[superscript r-k] are zero | p. 224 |
Flat cochains in complexes | p. 225 |
Elementary flat cochains in a complex | p. 226 |
The isomorphism theorem | p. 229 |
Chains and cochains in open sets | |
Chains and cochains in open sets, elementary properties | p. 232 |
Chains and cochains in open sets, further properties | p. 236 |
Properties of mass | p. 241 |
On the open sets to which a chain belongs | p. 243 |
An expression for flat chains | p. 246 |
An expression for sharp chains | p. 248 |
Lebesgue theory | |
Flat cochains and differential forms | |
n-cochains in E[superscript n] | p. 255 |
Some properties of fullness | p. 256 |
Properties of projections | p. 257 |
Elementary properties of D[subscript X](p, [alpha]) | p. 258 |
The r-form defined by a flat r-cochain | p. 260 |
Flat r-forms | p. 262 |
Flat r-forms and flat r-cochains | p. 263 |
Flat r-direction functions | p. 266 |
Flat forms defined by components | p. 268 |
Approximation to D[subscript X](p) by [characters not reproducible] | p. 270 |
Total differentiability of Lipschitz functions | p. 271 |
On the exterior differential of r-forms | p. 272 |
On averages of r-forms | p. 275 |
Products of cochains | p. 276 |
Lebesgue chains | p. 280 |
Products of cochains and chains | p. 281 |
Products and weak limits | p. 284 |
Characterization of the procducts | p. 286 |
Lipschitz mappings | |
Affine approximations to Lipschitz mappings | p. 289 |
The approximation on the edges of a simplex | p. 290 |
Approximation to the Jacobian | p. 292 |
The volume of affine approximations | p. 293 |
A continuity lemma | p. 295 |
Lipschitz chains | p. 296 |
Lipschitz mappings of open sets | p. 298 |
Lipschitz mappings and flat cochains | p. 302 |
Lipschitz mappings and flat forms | p. 302 |
Lipschitz mappings and sharp functions | p. 305 |
Lipschitz mappings and products | p. 306 |
On the flat norm of Lipschitz chains | p. 307 |
Deformations of chains | p. 308 |
Chains and additive set functions | |
On finite dimensional Banach spaces | p. 311 |
Vector valued additive set functions | p. 312 |
Vector valued integration | p. 314 |
Point functions times set functions | p. 316 |
Relations between a set function and its variation | p. 318 |
On positive linear functionals | p. 320 |
On bounded linear functionals | p. 322 |
Linear functions of sharp r-forms | p. 323 |
The sharp norm of r-vector valued set functions | p. 325 |
Molecular set functions | p. 325 |
Sharp chains and set functions | p. 326 |
Bounded Borel functions times chains | p. 328 |
The part of a chain in a Borel set | p. 329 |
Chains and point functions | p. 330 |
Characterization of the sharp norm | p. 331 |
Expression for the sharp norm | p. 333 |
Other expressions for the norm | p. 335 |
Vector and linear spaces | |
Vector spaces | p. 342 |
Linear transformations | p. 343 |
Conjugate spaces | p. 343 |
Direct sums, complements | p. 344 |
Quotient spaces | p. 345 |
Pairing of linear spaces | p. 345 |
Abstract homology | p. 346 |
Normed linear spaces | p. 346 |
Euclidean linear spaces | p. 348 |
Affine spaces | p. 349 |
Barycentric coordinates | p. 351 |
Affine mappings | p. 352 |
Euclidean spaces | p. 353 |
Banach spaces | p. 353 |
Semi-conjugate spaces | p. 354 |
Geometric and topological preliminaries | |
Cells, simplexes | p. 356 |
Polyhedra, complexes | p. 357 |
Su bdivisions | p. 357 |
Standard subdivisions | p. 358 |
Orientation | p. 360 |
Chains and cochains | p. 361 |
Boundary and coboundary | p. 362 |
Homology and cohomology | p. 362 |
Products in a complex | p. 363 |
Joins | p. 364 |
Subdivisions of chains | p. 364 |
Cartesian products of cells | p. 365 |
Mappings of complexes | p. 366 |
Some properties of planes | p. 367 |
Mappings of n-pseudomanifolds into n-space | p. 368 |
Distortion of triangulations of E[superscript m] | p. 370 |
Analytical preliminaries | |
Existence of certain functions | p. 372 |
Partitions of unity | p. 373 |
Smoothing functions by taking averages | p. 373 |
The Weierstrass approximation theorem | p. 375 |
Lebesgue theory | p. 376 |
The space L[superscript 1] | p. 378 |
Index of symbols | p. 379 |
Index of terms | p. 382 |
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