Carleman matrices are a special case of infinite matrices designed for function-composition. They involve implicitely the concept of generating-functions. They have certain specific properties which made me asking sometimes questions about this. Searching for the term "Carleman" I get 53 results ...
Suppose $G$ is a group and $H$ is a subgroup of $G$. $Ha$ is a right coset of $H$ in $G$. According to the Dover Book of Abstract Algebra p. 127, "Every coset in $G$ is a subset of $G$." I understand that since $H$ is a subgroup, it is closed with respect to multiplication. But nothing guarantees...
Let's as an upvoted answer to the old thread and comments here suggest remove intersection it's used for questions from «why intersection of two ideals is an ideal» to «how to compute this area of intersection using integral»; as Najib Idrissi puts it I don't think there should be tags "in...
Someone recently created the tag morphisms-of-schemes. Do we really need a tag separate from schemes for this? Especially with schemes, these objects being very often "over" another scheme, ie. the object studied is the morphism $S \to S_0$ where $S_0$ is some fixed base scheme ($\operatorname{Sp...
« first day (955 days earlier) ← previous day next day → last day (3386 days later) »