Catherine Ray's user avatar
Catherine Ray's user avatar
Catherine Ray's user avatar
Catherine Ray
  • Member for 9 years, 4 months
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10 votes
3 answers
373 views

Which group of order 24 is this group?

9 votes
1 answer
347 views

Which group of order 96 is this group?

9 votes
0 answers
927 views

Where does the term "mouse" (in set theory) come from?

8 votes
1 answer
281 views

What is the classification of 1-dimensional commutative formal group laws over $\mathbb{Z}$ up to isomorphism?

7 votes
1 answer
571 views

Is there one canonical principal polarization of a Jacobian per nonisomorphic curve?

7 votes
2 answers
401 views

How to take the derivative of this strange alternative to a devil's slippery staircase?

7 votes
0 answers
312 views

What is the group structure on the ring of power series around a point that makes it "the completion of an elliptic curve" along that point?

6 votes
1 answer
719 views

Is a formal deformation of a Lie algebra an example of a formal group law?

6 votes
1 answer
268 views

How can we continuously deform a height 1 formal group law into a height 2 formal group law?

6 votes
0 answers
122 views

When is a complex manifold of the form $\mathbb{C}^g/\Lambda$ an algebraic variety?

5 votes
0 answers
187 views

Uncertainties on the details of the Connor-Floyd isomorphism and Formal Group Laws

4 votes
0 answers
296 views

Are there invariants of formal group laws other than height?

4 votes
1 answer
753 views

Is a virtual vector bundle the same as a vectorial bundle?

4 votes
1 answer
272 views

Does every elliptic cohomology theory represent a complex-orientable $E_\infty$-ring spectra and vice-versa?

4 votes
0 answers
237 views

What is an example of a formal group law that does not come from an abelian variety?

4 votes
1 answer
164 views

What does it mean to decompose a formal group law into a formal summand of formal group laws?

3 votes
1 answer
425 views

Are generalized cohomology theories, spectra, and infinite loop spaces all the same thing up to homotopy?

1 vote
1 answer
228 views

Is a subobject classifier logically equivalent to set-inclusion?

1 vote
1 answer
82 views

On changing bases while working with Hom: is $\text{Hom}_R (M, R \otimes_I M) \simeq \text{Hom}_I(M, M)$?

1 vote
1 answer
137 views

Is a "solution" to a tensor product unique? Given $B, C$, is there a unique $A$ such that $A \otimes_{\mathbb{F}_2} B \simeq C$?

0 votes
0 answers
68 views

How does the Poincare series of a Hopf algebra quotient $A/B$ relate to the Poincare series of $A$ and $B$?