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tritonstation.com | ||
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alwaysasking.com
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| | | | | Is the universe fine-tuned? In other words, were physical laws and constants of nature somehow chosen to allow complex life to arise? | |
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helenthehare.org.uk
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| | | | | Emily Levesque is a professor in the University of Washington's astronomy department. Her research program is focused on improving our overall understanding of how massive stars evolve and die. Her first popular science book, The Last Stargazers, shares the tales and experiences of astronomical observing and comes out on August 4th, 2020! She has also... | |
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profmattstrassler.com
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| | | | | Last year, in a series of posts, I gave you a tour of quantum field theory, telling you some of what weunderstand and some of what we don't. I still haven't told you the role that string theory plays inquantum field theory today, but I am going to give you a brief tour of string... | |
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fabricebaudoin.blog
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| | | In this section, we consider a diffusion operator $latex L=\sum_{i,j=1}^n \sigma_{ij} (x) \frac{\partial^2}{ \partial x_i \partial x_j} +\sum_{i=1}^n b_i (x)\frac{\partial}{\partial x_i}, $ where $latex b_i$ and $latex \sigma_{ij}$ are continuous functions on $latex \mathbb{R}^n$ and for every $latex x \in \mathbb{R}^n$, the matrix $latex (\sigma_{ij}(x))_{1\le i,j\le n}$ is a symmetric and non negative matrix. Our... | ||
