The set of possible spectra (λ,μ,ν) of zero-sum triples of Hermitian matrices forms a polyhedral cone. We give a complete determination of its facets, finishing a long story with recent highlights by [Helmke-Rosenthal, Klyachko, Belkale]. We int...
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100 data puzzles for pandas, ranging from short and simple to super tricky (60% complete) (⭐ 2908)
Let A be a Noetherian local ring with the maximal ideal m and d=dimA. Let Q be a parameter ideal in A. Let I=Q:m. The problem of when the equality I^2=QI holds true is explored. When A is a Cohen-Macaulay ring, this problem was completely solved by...
The selection of high-redshift galaxies often involves spectral energy distribution (SED) fitting to photometric data, an expectation for contamination levels, and measurement of sample completeness -- all vetted through comparison to spectroscopic r...
We show that randomly choosing the matrices in a completely positive map from the unitary group gives a quantum expander. We consider Hermitian and non-Hermitian cases, and we provide asymptotically tight bounds in the Hermitian case on the typical...
Step 1: Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any …
This page provided a complete animated walkthrough for what is sum of 2 + 5?. Every step was visualized so you can understand not just the answer, but the method behind it.
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Just completed reading this book. It's a really good book and I recommend it to everyone. It has the cinematic narrative style, Is it common for new books? I loved this style, where there’s a connec...
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* u/iamjoric informed me about a interactive fallout london map. It looks like the map is complete so this thread will focus on descriptions where to look exactly. # [LINK TO](https://joric.github.io...
It's an increasing trend for me lately that the first 20-odd days of a month don't see much progress in the binary yes/no "is this game completed?" column. I don't plan it that way. I think it's just ...
continues the storyline of Bharathanatyam with a reportedly darker and more eventful narrative tone. Filming of Mohiniyattam was completed in January 2026,
Sep 2, 2025 · The Saints have benched Spencer Rattler after he was named the starting quarterback to begin the 2025 season. Rattler led New Orleans to just a 1–7 record while throwing eight …
Stellar multiplicity is correlated with many stellar properties, yet multiplicity measurements have proven difficult for the M dwarfs -- the most common type of star in our galaxy -- due to their faintness and the fact that a reasonably-complete inve...
Mar 13, 2025 · Names like Generation X and Generation Z are likely familiar to most of us—but do you know about the Silent Generation or the Lost Generation? There’s a lot to learn about how each …
Jun 30, 2017 · I'm running Win7 64bit and it's never installed updates. When I go to Windows Update, it eventually shows Code 80072F8F - Windows Update encountered an unknown error ...