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  • 34 votes cast
Mar
28
asked (Co)homology theory and electrical circuit
Nov
19
asked fundamental group and covering space
Jul
28
asked Question on Forster's proof of the residue theorem
Jul
18
asked Why $F \leq F' \; \Leftarrow \; \forall x \in X \; F_x \subseteq F'_x$?
Jun
24
asked Has any error ever been found in Euclid's elements?
Jun
18
asked A condition for a homogeneous ideal to be prime
Jun
5
asked Why is it Artinian?
May
5
asked Proof of a corollary of the Noether normalisation lemma
Apr
11
asked If $X \times \{0\} \cup A \times I$ is closed in $X \times I$. Then, is $A$ closed in $X$?
Apr
11
asked Is the length of the composition series of a free module identical to the number of its bases?
Mar
22
asked If a chain of distinct irreducible closed subsets of a quasi-affine variety $Y$ is maximal, a chain of their closures is maximal in $\overline{Y}$?
Mar
7
asked Isomorphism of an extension field of a field of finite transcendence degree
Feb
5
answered If a neibourhood of the origin shrinks to the origin then its closure also shurinks to the origin?
Jan
31
asked The kernel of homomorphism of a local ring into a field is its maximal ideal?
Jan
31
asked If a neibourhood of the origin shrinks to the origin then its closure also shurinks to the origin?
Jan
17
asked The number of possible extensions of an embedding of a field into a algebraically closed field.
Dec
6
asked Question about extensions of homomorphisms
Nov
30
answered Triangle inequality of a metric on a quotient space of a topological vector space
Nov
25
asked Triangle inequality of a metric on a quotient space of a topological vector space
Nov
9
asked Reference request for quadratic form diagonalization