I am not an expert in SDEs (my background is machine learning) but if I wanted to dig more into the subject, this is where I personally would start. Code [1] and pdf [2] for the book are available.
Simo Särkkä and Arno Solin (2019). Applied Stochastic Differential Equations. Cambridge University Press. Cambridge, UK.
I recently read the Gregory Hays translation [1] and thought it was great. Meditations was Marcus Aurelius's "notes to self" and the Hays edition captures this informal nature. It makes for an easy and delightful read.
Most of these cities (e.g. Zheleznogorsk [1]) seem to have a stylized atom as part of their coat of arms. I wonder if it was common practice in the USSR to incorporate similar symbols into the coat of arms of other newly founded industrial cities?
I got my x220 refurb last spring for under $700. I love it -- very portable and the battery life is ~6-7 hours. I run Arch Linux [1] and haven't had any issues, so you should be good to go with Ubuntu.
Actually the fact that you run Arch Linux _can_ have an effect. Arch being a rolling release distro, you pretty much always have an up to date kernel. I've experienced issues (broadcom wireless for instance) on ubuntu that were due to the use of an older kernel. The issues magically disappeared once I compiled a newer kernel. Not a difficult task, but since it took me some time to track down a solution, I thought it was worth mentionning.
It is excellent. He now has a follow-up book,
Beyond Mindfulness in Plain English: An Introductory guide to Deeper States of Meditation
that I've just started. It promises to take much more time to practice via the book's techniques.
