Preface |
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vii | |
Acknowledgments |
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xi | |
Flows in 2D and 3D |
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1 | (2) |
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1 A Prelude in 2D: Flows in Flatland |
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3 | (24) |
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3 | (1) |
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1.2 On Morse Theory on surfaces with boundary and beyond |
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3 | (6) |
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1.3 Vector fields and Morse stratifications on surfaces |
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9 | (4) |
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1.4 Concavity and complexity of vector flows in 2D |
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13 | (3) |
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1.5 On spaces of vector fields |
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16 | (1) |
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1.6 On the graph-theoretical approach to the concavity of traversing fields in 2D |
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17 | (8) |
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1.7 Combinatorics of tangency for traversing flows in 2D |
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25 | (2) |
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2 Vector Fields, Morse Stratifications, and Gradient Spines of 3-folds |
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27 | (58) |
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27 | (1) |
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2.2 Morse stratifications on 3-folds with boundary |
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28 | (6) |
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2.3 Surgery on Morse stratifications of 3-folds |
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34 | (3) |
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2.4 Morse strata, convexity, and concavity |
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37 | (9) |
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2.5 Cascades, 2D-spines, and concavity |
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46 | (24) |
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2.6 Abstract gradient spines |
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70 | (15) |
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3 Concavity and Complexity of Traversing Flows on 3-folds |
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85 | (60) |
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85 | (1) |
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3.2 Combinatorial and gradient complexities of 3-folds |
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86 | (25) |
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3.3 Which spines are gradient? |
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111 | (9) |
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3.4 The 3-folds of gradient complexity 0 and 1 |
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120 | (25) |
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4 Deformations of Traversing Flows in 3D and Modifications of Gradient Spines |
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145 | (66) |
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145 | (1) |
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4.2 On the combinatorics of 3D and 4D traversing vector flows |
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146 | (2) |
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4.3 One-parameter families of traversing flows on 3-folds |
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148 | (3) |
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4.4 Local algebraic models of traversally generic 4D-flows and their 3D-slices |
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151 | (3) |
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4.5 Algebraic models of elementary surgery for truly generic deformations of traversing 3D-flows |
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154 | (7) |
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4.6 How truly generic deformations of traversing vector fields affect the gradient spines |
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161 | (21) |
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4.7 Philips' Theorem and the spaces of vector fields in 3D |
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182 | (10) |
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4.8 Eliminating cusps by surgery on traversing vector fields, while preserving their complexity |
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192 | (7) |
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4.9 On the spaces of traversing vector fields in 3D with no cusps |
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199 | (12) |
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211 | (280) |
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5 Stratified Convexity and Concavity of Flows on Manifolds with Boundary |
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213 | (54) |
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213 | (1) |
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5.2 Revisiting the Morse stratification {∂+j X(v)} |
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214 | (12) |
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5.3 Deforming the Morse stratification |
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226 | (9) |
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5.4 Boundary convexity and concavity of vector fields |
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235 | (15) |
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5.5 Morse stratifications of the boundary 3-convex and 3-concave vector fields |
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250 | (10) |
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5.6 On the concave traversing flows whose trajectories are of the combinatorial types (11) and (121) only |
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260 | (7) |
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6 Traversally Generic and Versal Flows: Semi-algebraic Models of Tangency |
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267 | (94) |
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267 | (1) |
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6.2 Morin's local models: how nonsingular flows interact with boundary |
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268 | (7) |
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6.3 Traversally generic and versal vector fields |
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275 | (50) |
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6.4 On the trajectory spaces of traversing and traversally generic flows |
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325 | (24) |
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6.5 The ball-based Origami theorem for traversally generic flows |
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349 | (5) |
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6.6 A glimpse of holography |
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354 | (7) |
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7 Combinatorics of Tangency: the Stratified Spaces of Real Polynomials |
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361 | (44) |
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361 | (1) |
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7.2 Bifurcations of the real polynomial divisors: the universal combinatorics of tangency for traversing flows |
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361 | (11) |
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372 | (1) |
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7.4 Spaces of real univariate polynomials, stratified by the combinatorial types of their real divisors |
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372 | (15) |
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7.5 Combinatorics of multi-tangent trajectories |
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387 | (18) |
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8 Complexity of Shadows and Traversing Flows in Terms of the Simplicial Volume |
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405 | (64) |
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405 | (2) |
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8.2 On spines and cospines |
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407 | (4) |
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8.3 Shadows of manifolds with boundary |
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411 | (2) |
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8.4 Simplicial semi-norms, amenable localization, and complexity of shadows |
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413 | (27) |
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8.5 Complexity of traversally generic vector fields and the simplicial semi-norms |
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440 | (24) |
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8.6 Complexity of the fundamental group as a lower bound for the complexity of traversing flows |
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464 | (5) |
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9 The Burnside Ring-valued Morse Formula for Equivariant Vector Fields |
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469 | (22) |
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469 | (1) |
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9.2 G-equivariant vector fields and Morse stratifications |
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470 | (5) |
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9.3 Equivariant Morse formula for vector fields |
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475 | (7) |
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9.4 Polynomial vector fields in polynomial domains |
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482 | (4) |
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9.5 Gottlieb's and Gauss-Bonnet's equivariant formulas |
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486 | (3) |
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9.6 Speculations about differently flavored Burnside rings |
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489 | (2) |
Bibliography |
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491 | |