larry
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### Questions (126)

 6 Proving every tree has at most one perfect matching 4 Show that if $AA^t = A^tA$, then $A=A^t$ 4 Number of substrings of length M in a string of length N 4 Explain what is a linear transformation 3 How to use Cayley-Hamiltonian theorem in proving upper bound on linear space $W$?

### Reputation (195)

 -2 How many edges must you remove from Peterson graph to make it planar +15 How to use Cayley-Hamiltonian theorem in proving upper bound on linear space $W$? +5 Proving rank of matrix product +5 Max value of Anti-symmetric Relation

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### Tags (70)

 0 linear-algebra × 61 0 probability × 10 0 vector-spaces × 35 0 eigenvalues-eigenvectors × 10 0 matrices × 25 0 determinant × 9 0 linear-transformations × 17 0 polynomials × 8 0 graph-theory × 16 0 combinatorics × 7

### Accounts (3)

 Stack Overflow 417 rep 1720 Mathematics 195 rep 414 Computer Science 141 rep 17

 +50 Proving rank of $AB$ is at most equal to rank of $B$