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 Jan29 accepted Spectral gap vs. algebraic connectivity Jan29 comment Spectral gap vs. algebraic connectivity Great - this can be achieved easily with Sinkhorn-Knopp balancing. Jan29 comment Spectral gap vs. algebraic connectivity Thanks. Do you know if something similar holds in an undirected weighted graphs when the sum of vertex weights of each node is equal? Jan28 asked Spectral gap vs. algebraic connectivity Oct17 comment Finding unknown matrices in a set of simultaneous matrix equations I think $X$ should be $n$x$p$ Oct12 awarded Nice Answer Oct11 revised Why get the sum of squares instead of the sum of absolute values? added 3 characters in body Oct11 answered Why get the sum of squares instead of the sum of absolute values? Sep21 awarded Yearling Aug18 comment Integral notation @drhab Thanks. So it has nothing to do with the $dy$? Aug18 asked Integral notation Jul30 comment Types of definitions @GitGud In real life, it seems to me that there is a difference between defining what an object is by describing the object itself and defining what an object is by describing how it is generated. I just don't know if this distinction makes sense in math. Jul30 revised Types of definitions added 27 characters in body Jul30 comment Types of definitions Hmm... perhaps this is not the right SE, since in math definitions are always "generative" to some extent? Jul30 revised Types of definitions added 247 characters in body Jul30 comment Types of definitions Ok I think I should maybe add a more abstract example, since my question is not about the specifics. Jul30 asked Types of definitions Jul2 awarded Curious Jun1 comment How to find closest positive definite matrix of non-symmetric matrix Thanks Michael. Can you comment on whether anything changes (e.g. is it simpler?) if we know that A is real symmetric? May7 comment Composition of non-monotonic convex function Thanks. See my clarification in the question on what I am trying to do.