Andrew Ranicki's user avatar
Andrew Ranicki's user avatar
Andrew Ranicki's user avatar
Andrew Ranicki
  • Member for 14 years, 5 months
  • Last seen more than 6 years ago
52 votes

How can you tell if a space is homotopy equivalent to a manifold?

30 votes

What happened to online articles published in K-theory (Springer journal)?

16 votes

Video lectures of mathematics courses available online for free

16 votes

Poincare duality and the $A_\infty$ structure on cohomology

13 votes

Failure of smoothing theory for topological 4-manifolds

13 votes
Accepted

On definition of surgery

12 votes
Accepted

Why are cup-i products and Steenrod Squares often (always?) unary?

11 votes
Accepted

Higher dimensional Heegaard splittings?

11 votes
Accepted

Intutive interpretation about Linking forms

11 votes
Accepted

Where to start with research regarding maslov index/class

10 votes
Accepted

knot complement

10 votes

motivation of surgery

10 votes
Accepted

Ranicki symmetric L-groups of finite fields?

10 votes

What are some examples of colorful language in serious mathematics papers?

10 votes
Accepted

Which bordism classes fiber over the circle?

9 votes

Intuition behind Alexander duality

9 votes

Is there a notion of a chain complex with corners?

8 votes

Invariants of high-dimensional knots

8 votes

Parity of self-linking

8 votes
Accepted

Symmetric L-groups of integral group ring of finite cyclic groups

7 votes

Which manifolds are homeomorphic to simplicial complexes?

6 votes

German mathematical terms like "Nullstellensatz"

6 votes

understanding Steenrod squares

6 votes

Is there a Wall finiteness obstruction in other settings?

6 votes

Mapping torus of a homotopy equivalence

6 votes

Definition of "simplicial complex"

6 votes

Are the stiefel-Whitney classes of the tangent bundle determined by the mod 2 cohomology?

5 votes

Natural setting for characteristic classes?

4 votes

Definition of the Kervaire invariant for normal maps (as in Browder's book)

4 votes

Reference for monkeying with the topology of a mapping cylinder