Tropical Combinatorics

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$Banach J. Math. Anal. 4 (2010), no. 2, 37–44 FUNCTIONAL ... - EMIS$

$Banach J. Math. Anal. 2 (2008), no. 1, 16–20 A STUDY ON ... - EMIS$

Cayley Trick for Products of Simplices consider P1 = P2 = · · · = Pn = ∆d−1 = conv{e1, e2, . . .,ed} C(∆d−1, ∆d−1, . . .,∆d−1 ) n ∼ = ∆n−1 × ∆d−1 Corollary 1 For any polyhedral subdivision of ∆n−1 × ∆d−1 the intersection of its cells with { 1 ei} × Rd yields a mixed subdivision of 1 n · (n∆d−1). 2 This correspondence is a poset isomorphism from the subdivisions of ∆n−1 × ∆d−1 to the mixed subdivisions of n∆d−1. Further, the coherent mixed subdivisions are bijectively mapped to the regular subdivisions. n
4 3 2 1 0 (1,0,3) (2,0,2) (3,0,1) (0,0,4) (0,1,3) (0,2,2) (2,1,1) (1,1,2) (1,2,1) (0,3,1) (4,0,0) (3,1,0) (2,2,0) (1,3,0) (0,4,0) -1 -1 0 1 2 3 4 5 Back to Standard Example 400 fine types coarse types sum columns of type matrix ∼ replace sets by their cardinality coarse types of maximal cells = vertex coordinates of mixed subdivision 301 202 310 103 211 004 112 220 013 121 022 130 031 040
Page 1 and 2: Tropical Combinatorics Michael Josw
Page 3 and 4: 1 Tropical Hypersurfaces The tropic
Page 5 and 6: tropical semi-ring: (R ∪ {+∞},
Page 7 and 8: Tropical Polynomials read ordinary
Page 9 and 10: tropical semi-module (R d , ⊕,
Page 11 and 12: The Newton Polytope of a Tropical P
Page 13 and 14: Tropical Hyperplanes F(x) = (α1
Page 15 and 16: duality between min and max: Max-Tr
Page 17 and 18: valuation map val : C{{z}} → Q
Page 19 and 20: A Lifting Theorem I Theorem (Einsie
Page 21 and 22: tropicalization of (homogeneous) po
Page 27 and 28: Tropical Convexity for x, y ∈ R d
Page 29 and 30: Tropical Convexity for x, y ∈ R d
Page 31 and 32: Example: Tropical Line Segment in T
Page 33 and 34: Example: Tropical Line Segment in T
Page 35 and 36: consider V = (v1, v2, . . .,vn) in
Page 37 and 38: consider V = (v1, v2, . . .,vn) in
Page 39 and 40: duality between min and max: Recall
Page 41 and 42: tconv{v1, . . .,vn} ⊂ T d−1 dua
Page 43 and 44: P, Q : polytopes in R d P + Q = {p
Page 45 and 46: P, Q : polytopes in R d P + Q = {p
Page 47 and 48: e1, e2, . . .,en : affine basis of
Page 49: Cayley Trick for Products of Simpli
Page 53 and 54: 4 3 2 1 0 (1,0,3) (2,0,2) (3,0,1) (
Page 55 and 56: A Tropical Hypersurface point vi
Page 57 and 58: A Tropical Hypersurface point vi
Page 59 and 60: Conclusion II n points in T d−1
Page 61 and 62: Conclusion II n points in T d−1
Page 63 and 64: The Coarse Type Ideal Definition Le
Page 65 and 66: Resolutions via Coarse Tropical Con
Page 67 and 68: Minimal Free Resolutions S = K[x1,
Page 69 and 70: (Co-)Cellular Resolutions II Propos
Page 71 and 72: 201 111 021 300 210 030 chain compl
Page 73 and 74: 201 111 021 300 210 030 chain compl
Page 75 and 76: Proposition Each tropically convex
Page 77 and 78: Proposition Each tropically convex
Page 79 and 80: A = A(V ): max-tropical hyperplane
Page 81 and 82: n = d = 3, ⎛ ⎞ 0 1 0 V = ⎝0 1
Page 83 and 84: 4 3 2 1 0 (1,0,3) (2,0,2) (3,0,1) (
Page 85 and 86: Conclusion and Remarks III tropical
Page 87: Conclusion and Remarks III tropical

Tropical Combinatorics

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