/explore
|
You are here 
|
live-simons-blog.pantheonsite.io | ||
| | | | |
ptreview.sublinear.info
|
|
| | | | | ||
| | | | |
quantumfrontiers.com
|
|
| | | | | Summer is a great time for academics. Imagine: three full months off! Hit the beach. Tune that golf pitch. Hike the sierras. Go on a cruise. Watch soccer with the brazilenos (there's been better years for that one). Catch the sunset by the Sydney opera house. Take a nap. Think that's outrageous? We have it... | |
| | | | |
scottaaronson.blog
|
|
| | | | | Way back in 2005, I posed Ten Semi-Grand Challenges for Quantum Computing Theory, on at least half of which I'd say there's been dramatic progress in the 16 years since (most of the challenges were open-ended, so that it's unclear when to count them as "solved"). I posed more open quantum complexity problems in 2010,... | |
| | | | |
nhigham.com
|
|
| | | A real $latex n\times n$ matrix $LATEX A$ is symmetric positive definite if it is symmetric ($LATEX A$ is equal to its transpose, $LATEX A^T$) and $latex x^T\!Ax > 0 \quad \mbox{for all nonzero vectors}~x. $ By making particular choices of $latex x$ in this definition we can derive the inequalities $latex \begin{alignedat}{2} a_{ii} &>0... | ||
