ELI5: Explain Like I'm 5

Derived noncommutative algebraic geometry

Derived noncommutative algebraic geometry is like playing with Legos but with more complicated shapes and rules. Instead of just square blocks, imagine blocks with different shapes, sizes, and colors that can be combined in different ways.

In this game, we also have rules about how we can combine these blocks. For example, some blocks can only be placed on top of others, and some blocks cannot touch each other at all. These rules help us make sense of the shapes we are building and give structure to our game.

Now, let's apply this idea to math. In traditional algebraic geometry, we study shapes called varieties that are described by polynomial equations. In derived noncommutative algebraic geometry, we study more complicated shapes called derived stacks that are described by more complicated equations.

These equations involve things called noncommutative rings, which are like mathematical Legos with more complicated rules about how they can be combined. Just like the pieces in our Lego game, these noncommutative rings have rules about how they can be combined and what order they can be combined in.

By studying these noncommutative rings and how they relate to derived stacks, we can develop a deeper understanding of the geometrical shapes we are working with. It's like we are building more complicated Legos and learning more rules about how to play the game.

Overall, derived noncommutative algebraic geometry is a way to study more complicated shapes and equations using special mathematical Legos. It helps mathematicians understand the structure of these shapes and develop new insights in the field of algebraic geometry.