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Mykola Pochekai
  • Member for 7 years, 11 months
  • Last seen this week
  • Ukraine
6 votes
2 answers
509 views

$S^3 \setminus S^1$ doesn't have hyperbolic structure

5 votes
1 answer
237 views

Examples of noetherian local rings $R$ such that $K'_0(R)$ is not isomorphic to $\mathbb Z$

4 votes
1 answer
519 views

Manifolds such that every homeomorphism of a submanifold to itself extends to the full manifold

4 votes
0 answers
133 views

Which dg-algebras have minimal model which is $A_{fin}$?

3 votes
0 answers
67 views

Notion of "strict $A_\infty$ centre"

3 votes
0 answers
99 views

Explicit description of periodic map $S : HC_{i} \to HC_{i-2}$ for dg and $A_\infty$ algebras

3 votes
0 answers
202 views

Wrong way Poincare duality for Calabi-Yau dg-algebras?

3 votes
0 answers
127 views

Classification of Euclidian-like Klein geometries in spirit of Erlangen program

3 votes
1 answer
148 views

How to check that exceptional sequence of vector bundles on Fano variety is helix foundation

3 votes
0 answers
127 views

Does existance of crepant resolution of tangent space imply existance of crepant resolution globally in the algebraic setting?

2 votes
0 answers
78 views

Codimension $k$ homeomorphism extensions

2 votes
0 answers
95 views

Shklyarov's Euler class in geometrical setting

1 vote
0 answers
100 views

"The" axiom of induction up to recursive ordinal $\alpha$ in $\mbox{PRA}$

1 vote
0 answers
82 views

Coherent sheaf with big enough support is non-zero in K-theory