82

Questions

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What is such an equation called?

linear-algebra matrices matrix-theory terminology

jan 4 at 16:36 S. Sra 10k●1●16●44

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1

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105

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The smallest eigenvalue from an equitable partitions

graph-theory spectral-graph-theory equitable-partition eigenvalue

dec 22 at 15:50 Chris Godsil 5,644●1●8●22

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70

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bounds on the entries of an inverse circulant matrix

matrix-theory circulant-matrix inverse

dec 4 at 12:27 Felix Goldberg 2,363●4●12

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148

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Have you come across this kind of “degree” concept?

graph-theory extremal-graph-theory degree-sequence

oct 8 at 12:32 Ben Barber 461●1●6

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44

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Is the trace of a Lyaponov transform of a semistable matrix always nonpositive?

matrix-theory stable-matrix lyapunov traces

oct 10 at 14:24 Denis Serre 18.7k●1●31●93

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122

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Estimating a spectral gap

matrix-theory matrices spectral-gap

oct 22 at 10:36 Felix Goldberg 2,363●4●12

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2

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103

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Is number of quasi-kernels NP-hard?

graph-theory directed-graph quasi-kernel computational-complexity

oct 23 at 14:04 Colin McQuillan 531●1●7

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233

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sign-flipping inverse

linear-algebra na.numerical-analysis inverse matrix-analysis

may 23 at 2:26 Robert Israel 10.8k●8●22

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170

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inverse-closed matrix spaces

matrix-theory linear-algebra inverse

may 23 at 19:35 Michael Renardy 4,771●1●10●17

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410

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Cramer’s rule for eigenvectors

linear-algebra

may 7 12 at 16:37 Terry Tao 27.6k●4●107●178