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Apr
22
revised Several Topos theory questions
updated a dead link
Apr
20
revised Complexity of solving systems of linear diophantine equations
added 5 characters in body
Apr
20
revised Complexity of solving systems of linear diophantine equations
added 410 characters in body
Apr
18
revised the root lattice, reflections, and a coxeter element
remove greetings and signature, to make it conform to standard postings
Apr
14
revised Expressing $SO_8$ element as product of $L_u$ and $R_u$ for unit octonions $u$
TeX typo fixed
Apr
12
revised Torsion-free, normal subgroups of certain Coxeter groups
added 163 characters in body
Apr
12
revised A generalization of scrolls
typo
Apr
3
revised Cayley graphs of $A_n.$
added 145 characters in body
Mar
20
revised Self-complementary block designs
more tags
Mar
20
revised Self-complementary block designs
show that we always come from a Hadamard matrix
Mar
18
revised Graphs cospectral with Cayley graphs
english
Mar
10
revised spectrum of Hadamard matrices
improved the answer, more proved
Mar
10
revised spectrum of Hadamard matrices
improved the answer
Feb
23
revised More general than semidefinite program?
generalised more...
Jan
3
revised embedding of $O_4^-(q)$ in $U_4(q)$
tex fix
Nov
13
revised How to calculate log or exp of a value in GF(2^n) using log/exp table of GF((2^k)^m) where n=k*m?
TeXify and fix some English...
Nov
13
revised Proving Richardson's theorem for constants
tag added
Nov
11
revised Recurrence sequence
tex fix
Nov
6
revised do you know this determinant (basic commutative algebra)?
removed no longer working typesetting workarounds like &lt; instead of <
Oct
26
revised Strongly connected graph and the eigenvalues of the laplacian matrix
addded the matrix for the example