Otherwise, continue as follows: The definition of 'distance' is the minimum distance between any two points A,B on the two lines. So assume points A,B are the ones who provide the minimum distance between the lines.
What is the difference between minimum and infimum? I have a great confusion about this.
I'm searching for some symbol representing minimum that is commonly used in math equations.
What is the difference between the minimum value and the lower bound of a function? To me, it seems that they are the same.
In short, I want to know the minimum numbers of triangles for triangulations of well-known sufaces (torus, projective plane, and Klein bottle), or the way to calculate them.
How can I find maximum and minimum modulus of a complex number?
Show that there's a unique minimum spanning tree (MST) in case the edges' weights are pairwise different $(w(e)\neq w(f) \text{ for } e\neq f)$. I thought that the proof can be done for example by
Show that there's a unique minimum spanning tree if all edges have ...