Foreword |
|
v | |
|
1 Some Combinatorially Defined Matrix Classes |
|
|
1 | (46) |
|
|
1.1 Permutations and Permutation Matrices |
|
|
1 | (14) |
|
|
1 | (2) |
|
|
3 | (1) |
|
|
3 | (2) |
|
1.1.4 Matrix Bruhat Decomposition |
|
|
5 | (3) |
|
|
8 | (3) |
|
1.1.6 Involutions and Symmetric Integral Matrices |
|
|
11 | (4) |
|
1.2 Alternating Sign Matrices |
|
|
15 | (17) |
|
|
15 | (1) |
|
1.2.2 Other Views of ASMs |
|
|
16 | (3) |
|
|
19 | (1) |
|
|
20 | (1) |
|
|
21 | (1) |
|
1.2.6 MacNeille Completion and the Bruhat Order |
|
|
22 | (3) |
|
1.2.7 Bruhat Order Revisited |
|
|
25 | (6) |
|
1.2.8 Spectral Radius of ASMs |
|
|
31 | (1) |
|
1.3 Tournaments and Tournament Matrices |
|
|
32 | (13) |
|
1.3.1 The Inverse Problem |
|
|
33 | (1) |
|
|
34 | (2) |
|
1.3.3 Loopy Tournaments and Their Generation |
|
|
36 | (2) |
|
1.3.4 Hankel Tournaments and Their Generation |
|
|
38 | (2) |
|
1.3.5 Combinatorially Skew-Hankel Tournaments and Their Generation |
|
|
40 | (5) |
|
|
45 | (2) |
|
|
47 | (36) |
|
|
2.1 Introduction to Sign Pattern Matrices |
|
|
47 | (1) |
|
2.1.1 Notation and Definitions |
|
|
47 | (1) |
|
2.2 Potential Stability of Sign Patterns |
|
|
48 | (9) |
|
2.2.1 Stability Definitions |
|
|
48 | (1) |
|
2.2.2 Stability of a Dynamical System |
|
|
49 | (1) |
|
2.2.3 Characterization of Sign Stability |
|
|
50 | (1) |
|
2.2.4 Basic Facts for Potential Stability |
|
|
51 | (1) |
|
2.2.5 Known Results on Potential Stability for Small Orders |
|
|
52 | (1) |
|
2.2.6 Sufficient Condition for Potential Stability |
|
|
52 | (2) |
|
2.2.7 Construction of Higher-Order Potentially Stable Sign Patterns |
|
|
54 | (2) |
|
2.2.8 Number of Nonzero Entries |
|
|
56 | (1) |
|
2.2.9 Open Problems Related to Potential Stability |
|
|
57 | (1) |
|
2.3 Spectrally Arbitrary Sign Patterns |
|
|
57 | (7) |
|
2.3.1 Some Definitions Relating to Spectra of Sign Patterns |
|
|
57 | (2) |
|
2.3.2 A Family of Spectrally Arbitrary Sign Patterns |
|
|
59 | (2) |
|
2.3.3 Minimal Spectrally Arbitrary Patterns and Number of Nonzero Entries |
|
|
61 | (1) |
|
2.3.4 Reducible Spectrally Arbitrary Sign Patterns |
|
|
62 | (1) |
|
2.3.5 Some Results on Potentially Nilpotent Sign Patterns |
|
|
63 | (1) |
|
2.3.6 Some Open Problems Concerning SAPs |
|
|
64 | (1) |
|
2.4 Refined Inertia of Sign Patterns |
|
|
64 | (9) |
|
2.4.1 Definition and Maximum Number of Refined Inertias |
|
|
64 | (1) |
|
2.4.2 The Set of Refined Inertias Hn |
|
|
65 | (1) |
|
2.4.3 Sign Patterns of Order 3 and H3 |
|
|
66 | (1) |
|
2.4.4 Sign Patterns of Order 4 and H4 |
|
|
66 | (1) |
|
2.4.5 Sign Patterns with All Diagonal Entries Negative |
|
|
67 | (1) |
|
2.4.6 Detecting Periodic Solutions in Dynamical Systems |
|
|
68 | (4) |
|
2.4.7 Some Open Problems Concerning Hn |
|
|
72 | (1) |
|
2.5 Inertially Arbitrary Sign Patterns |
|
|
73 | (6) |
|
2.5.1 Definition and Relation to Other Properties |
|
|
73 | (1) |
|
2.5.2 Generalization of the Nilpotent-Jacobian Method |
|
|
74 | (2) |
|
|
76 | (1) |
|
2.5.4 A Glimpse at Zero-Nonzero Patterns |
|
|
76 | (1) |
|
2.5.5 A Taste of More General Patterns |
|
|
77 | (1) |
|
2.5.6 Some Open Problems Concerning IAPs |
|
|
78 | (1) |
|
|
79 | (4) |
|
3 Spectral Radius of Graphs |
|
|
83 | (48) |
|
|
3.1 Graph-Theoretical Definitions |
|
|
83 | (2) |
|
3.2 The Adjacency Matrix and Its Spectral Properties |
|
|
85 | (4) |
|
|
89 | (6) |
|
3.4 The Eigenvector Approach |
|
|
95 | (10) |
|
3.5 The Characteristic Polynomial Approach |
|
|
105 | (5) |
|
|
110 | (17) |
|
|
127 | (4) |
|
4 The Group Inverse of the Laplacian Matrix of a Graph |
|
|
131 | (42) |
|
|
|
131 | (1) |
|
|
132 | (6) |
|
|
138 | (3) |
|
4.4 L# and the Bottleneck Matrix |
|
|
141 | (3) |
|
4.5 L# for Weighted Trees |
|
|
144 | (4) |
|
4.6 Algebraic Connectivity |
|
|
148 | (4) |
|
|
152 | (2) |
|
|
154 | (6) |
|
4.9 Computational Considerations |
|
|
160 | (8) |
|
|
168 | (3) |
|
|
171 | (2) |
|
5 Boundary Value Problems on Finite Networks |
|
|
173 | |
|
|
|
173 | (1) |
|
5.2 The M-Matrix Inverse Problem |
|
|
174 | (2) |
|
5.3 Difference Operators on Networks |
|
|
176 | (8) |
|
5.3.1 Schrodinger Operators |
|
|
181 | (3) |
|
|
184 | (1) |
|
5.5 Networks with Boundaries |
|
|
185 | (3) |
|
5.6 Self-Adjoint Boundary Value Problems |
|
|
188 | (5) |
|
5.7 Monotonicity and the Minimum Principle |
|
|
193 | (2) |
|
5.8 Green and Poisson Kernels |
|
|
195 | (4) |
|
5.9 The Dirichlet-to-Robin Map |
|
|
199 | (2) |
|
5.10 Characterization of Symmetric M-Matrices as Resistive Inverses |
|
|
201 | (6) |
|
5.10.1 The Kirchhoff Index and Effective Resistances |
|
|
202 | (2) |
|
|
204 | (3) |
|
5.11 Distance-regular Graphs with the M-Property |
|
|
207 | (8) |
|
5.11.1 Strongly Regular Graphs |
|
|
209 | (1) |
|
5.11.2 Distance-regular Graphs with Diameter 3 |
|
|
210 | (5) |
|
|
215 | |