# Questions tagged [surgery-theory]

In geometric topology, surgery theory is used to produce one finite-dimensional manifold from another in a 'controlled' way. Originally developed for differentiable (smooth) manifolds, surgery techniques also apply to piecewise linear and topological manifolds. Surgery refers to cutting out parts of the manifold and replacing it with a part of another manifold, matching up along the cut or boundary. This is related to handlebody decompositions.

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### Quartic link in a 5-sphere

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### Triple link in a 5-sphere — Proposal

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### Cell structures of simply-connected 5-manifolds (classified by Barden's 1965 paper)

**8**

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### Künneth formulas/theorem for bordism groups and cobordisms?

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### What is the monoid of skew-symmetric trilinear forms on finite abelian groups?

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### Regarding a proof in the surgery theorem by Gromov and Lawson

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### Surgery and Curvature on Foliation

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### A search for a sequence of $6$-manifolds

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### Making diffeomorphism of submanifolds boring

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### Building examples of elements of $\Omega_4(\xi)$ via surgery theory: how to do it?

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### Compare two topologies: Three 2-tori inside $S^3 \times S^1 \# S^2 \times S^2$ glued from two different diffeomorphisms

**17**

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### Vanishing of characteristic numbers vs vanishing of characteristic classes

**2**

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### What is the most symmetric configuration of four 2-surfaces linked in $S^4$?

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### A link of four 2-tori $T^2$ in $S^2 \times S^2$

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### A link of four 2-tori $T^2$ in $S^3 \times S^1 \# S^2 \times S^2 \# S^2 \times S^2$

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### Partial converse to Novikov's conjecture

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### Surgery on $M\times S^1$

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### How to compute $[CP^2, G/PL]$?

**3**

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### Manifolds whose diffeomorphism group has the homotopy type of a manifold itself

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### Classification of fake (quaternionic, octonionic) projective spaces

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### Does a homotopy sphere that bounds a highly connected manifold also bound a parallelizable manifold?

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### Elements of infinite order in the topological mapping class group

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### Surgery of $S^3$

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### Any PL-homology-manifold is homotopy equivalent to a manifold

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### Mapping class groups in high dimension

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### Surgery to unlink $S^p$ and $S^q$ in $S^d$

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### Obtain 4-manifolds by repeating surgeries of submanifolds in $S^4$

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### Why is the oriented $G$-homotopy type of a $G$-complex uniquely determined by the periodicity generator?

**1**

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### Connected representant of a framed cobordism class (reference needed)

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### The relations between some 3-components links and trefoil knots [closed]

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### Sullivan's $H$-space equivalence between $G/PL[1/2]$ and $BO[1/2]$

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### Two links with the same signatures but unknown if they are related by Kirby moves

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### On definition of surgery [closed]

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### Is there a notion of a chain complex with corners?

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### Examples of calculations of Turaev-Reshetikhin TQFT of cobordisms with boundaries have genera greater than 1

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### Framings in the definition of Reshetikhin-Turaev TQFT

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### Surgering locally flat tori in 4-manifolds

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### Does the coefficient of the meridian determine the coefficient of the longitude?(on Dehn surgery)

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### Finding a ribbon graph for a mapping class group action

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### A special ribbon graph presents a cylinder.

**11**

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### Do the results of (1/n)-surgery determine the link?…

**7**

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### topological type of smooth manifolds with prescribed homotopy type and pontryagin class

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### Smooth structures on the connected sum of a manifold with an Exotic sphere

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### Kirby calculus and local moves

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### motivation of surgery

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