## Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

## Discussion Tag Cloud

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorMurat_Aygen
• CommentTimeFeb 14th 2018
• (edited Feb 14th 2018)

If one solves

${b}_{1}⟨{a}_{1}⟩+\dots +{b}_{m}⟨{a}_{m}⟩=\delta \left[\sum \sum {x}_{i,j}⟨{a}_{i},{a}_{j}⟩\right]$

for x’s when b’s are given, one ends up with

$\mathbit{\eta }\stackrel{\to }{x}=\stackrel{\to }{b}$

where \eta is the INCIDENCE MATRIX! Then all proofs about 0-homology groups are just about the ranks of square-submatrices of this matrix. Am I right?