?? what sense of "cone" does dimitrov have in mind in saying:

"We will then see that toric varieties are constructed by “gluing” together affine
varieties which correspond to a specific kind of geometric objects — a type of cone."

?? pun ??

at first i thought that they did mean that the real or complex spectrum is a cone .... now though i think they probably meant the (P,+) spectrum .... ???? .....

?? relationship ... ??? ...