Timeline for Upper bound for $\|\textbf{D}^{-1}\|$, where $\textbf{D}$ is a matrix with specific sparse pattern
Current License: CC BY-SA 3.0
18 events
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| Aug 19, 2017 at 21:00 | history | edited | Integral | CC BY-SA 3.0 |
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| Aug 19, 2017 at 16:27 | comment | added | Samrat Mukhopadhyay | Well, @Integral, I am also not sure how to proceed with this, but I just made this comment to put out the particular structure that this matrix has, so that probably it can make things easier. | |
| Aug 18, 2017 at 22:52 | comment | added | Integral | @SamratMukhopadhyay I can't see how to use this, any ideas? Thanks. | |
| Aug 18, 2017 at 15:18 | history | edited | Integral | CC BY-SA 3.0 |
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| Aug 18, 2017 at 15:16 | comment | added | Integral | @Dirk I wasn't aware of this terminology. I'm going to edit then, thank you. | |
| Aug 18, 2017 at 6:28 | comment | added | Dirk | I think you mean "specific sparsity pattern" instead of "specific sparse structure". | |
| Aug 17, 2017 at 22:20 | history | edited | Integral | CC BY-SA 3.0 |
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| S Aug 15, 2017 at 22:16 | history | bounty ended | CommunityBot | ||
| S Aug 15, 2017 at 22:16 | history | notice removed | CommunityBot | ||
| Aug 15, 2017 at 11:41 | comment | added | Integral | @Anton Mellit There is two definitions of a sparse matrix. A matrix with a lot of zeros and a matrix with zeros in specific positions. I'm using the second . | |
| Aug 12, 2017 at 20:51 | comment | added | Anton Mellit | I don't understand why you are calling this a sparse structure. The matrix $A$ is very dense, at least 2/3 of its entries are arbitrary. | |
| Aug 11, 2017 at 14:44 | history | edited | Integral | CC BY-SA 3.0 |
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| Aug 11, 2017 at 6:19 | comment | added | Samrat Mukhopadhyay | You could probably start with the observation that the matrix $\mathbf{D}$ can be represented as $$I_3\otimes(\mathbf{1}_r\mathbf{1}_r^T\otimes D)+(\mathbf{1}_3\mathbf{1}_3^T-I_3)\otimes \mathbf{X} $$ Here I use $\mathbf{1}_l$ to represent a $l\times 1$ column of $1$'s, and $I_l$ to represent the $l\times l$ identity matrix. | |
| S Aug 7, 2017 at 20:41 | history | bounty started | Integral | ||
| S Aug 7, 2017 at 20:41 | history | notice added | Integral | Draw attention | |
| Aug 4, 2017 at 13:16 | history | edited | Integral | CC BY-SA 3.0 |
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| Aug 4, 2017 at 12:40 | history | edited | Integral | CC BY-SA 3.0 |
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| Aug 4, 2017 at 1:14 | history | asked | Integral | CC BY-SA 3.0 |