Ciro Santilli @cirosantilli 35

Besides the understandable Wikipedia definition, Video "Simple Groups - Abstract Algebra by Socratica (2018)" gives an understandable one:

We don't really know how to make up larger groups from smaller simple groups, which would complete the classification of finite groups:

In particular, this is hard because you can't just take the direct product of groups to retrieve the original group: Section "Relationship between the quotient group and direct products".

TODO WTF is this? How is it built? What is special about it?

Mentioned a lot in the context of superconducting quantum computers, e.g. youtu.be/t5nxusm_Umk?t=268 from Video "Quantum Computing with Superconducting Qubits by Alexandre Blais (2012)",

A Turing machine that simulates another Turing machine/input pair that has been encoded as a string.

In other words: an emulator!

The concept is fundamental to state several key results in computer science, notably the halting problem.

www.gvgai.net (dead as of 2023)

The project kind of died circa 2020 it seems, a shame. Likely they funding ran out. The domain is dead as of 2023, last archive from 2022: web.archive.org/web/20220331022932/http://gvgai.net/. Marks as funded by DeepMind. Researchers really should use university/GitHub domain names!

Similar goals to Ciro's 2D reinforcement learning games, but they were focusing mostly on discrete games.

They have some source at: github.com/GAIGResearch/GVGAI TODO review

A published book at: gaigresearch.github.io/gvgaibook/

From QMUL Game AI Research Group:From other universities:TODO check:

The weirdest mammal clade: they lay fucking eggs. Only 5 known species alive as of 2020.

Eggs are basal: they simply didn't evolve out of what other reptiles do. From which we conclude that milk came before eggs stopped.

So this is the most basal subclade of mammals.

Etymology: means "single hole" in Greek, because like other reptiles it has a single hole for shit, pee and fucking: the cloaca.

This section is about ways in which you can represent a tree.

Trees are a specific type of graph, so any graph representation also provides a way to represent a tree.

Therefore this section will focus only on methods specific to tress, and which cannot be used for graphs in general.

Analogous to what the Euler-Lagrange equation is to Lagrangian mechanics, Hamilton's equations give the equations of motion from a given input Hamiltonian:So once you have the Hamiltonian, you can write down this system of partial differential equations which can then be numerically solved.