Danny Ruberman

Brandeis University

http://people.brandeis.edu/~ruberman/

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Harmonic spinors on closed hyperbolic manifolds

dg.differential-geometry hyperbolic-geometry differential-operators spin-geometry dirac-operator asked Apr 17, 2015 at 1:09

mathoverflow.net

21 votes

Does Spin cobordism vanish in dimension $4k-1$?

at.algebraic-topology cobordism spin-geometry asked Jan 31, 2017 at 1:01

mathoverflow.net

17 votes

Homotopy groups of Diff(X) and Homeo(X)

at.algebraic-topology gt.geometric-topology smooth-manifolds 4-manifolds asked Oct 7, 2020 at 12:13

mathoverflow.net

15 votes

compressibility of Seifert surface after 0-surgery

gt.geometric-topology incompressible-surfaces seifert-surfaces asked Mar 1, 2012 at 2:29

mathoverflow.net

8 votes

Spin structures and bitangents

ag.algebraic-geometry gt.geometric-topology asked Dec 8, 2017 at 12:47

mathoverflow.net

8 votes

Disciplining dunce hats

reference-request gt.geometric-topology paper-request asked Jun 12, 2019 at 1:12

mathoverflow.net

7 votes

Relative version of Browder's theorem on H-spaces

at.algebraic-topology homotopy-theory asked Nov 30, 2022 at 21:42

mathoverflow.net

6 votes

Almost parallelizable hyperbolic manifolds

gt.geometric-topology hyperbolic-geometry asked Nov 30, 2021 at 2:36

mathoverflow.net

5 votes

Generators of the automorphism group of a quadratic form

quadratic-forms 4-manifolds orthogonal-groups asked Jun 27, 2021 at 20:09

mathoverflow.net

Top Answers

Books/websites which have motivating stories of mathematicians overcoming hardships in life

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Misspelling my name on my mathematical publications

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How can gauge theory techniques be useful to study when topological manifolds can be triangulated?

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Is every degree 1 self-map a homotopy equivalence?

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Books that teach other subjects, written for a mathematician

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Manifold embedded in $R^{n+1}$ with a submanifold that doesn't embed in $R^n$

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What can we say about the Cartesian product of a manifold with its exotic copy?

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Very particular kind of 4-manifolds. Classification

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What is the status of the 4-dimensional Smale Conjecture?

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$S^3$ as cyclic branched cover of itself

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Acyclic Finite Groups

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Is the normal bundle of a torus trivial?

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Homology spheres and fundamental group

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Thom conjecture in CP3

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Handlebody decomposition of an open 4-manifold

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Topological rigidity for negatively curved manifolds?

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Fibered example of topologically slice knots

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Can a homology $n-1$-sphere divide $\mathbb{S}^{n}$ into non-contractible components?

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Is $\pi_{n-1}$ of a non-trivial connected sum of $n$-manifolds always non-zero?

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Homeomorphisms of $S^n\times S^1$

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Existence of Morse functions on simply connected manifolds

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What are Kirby diagrams of candidate exotic 4-manifolds?

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Characteristic class that cannot be represented by disjoint tori

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A simple and good reference on surgery theory

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Thorough reference on regular homotopy

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Famous mathematical quotes

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4-manifold $M$ with intersection form of Leech lattice

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Exotic smooth structure

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Non-trivial examples of Stably diffeomorphic 4-manifolds

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formula for Eta invariant

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