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1-connected 5-manifolds	1-manifolds	2-manifolds
2012 OSS General information	3-manifolds	3-manifolds in 6-space
4-manifolds: 1-connected	4-manifolds in 7-space	5-manifolds: 1-connected
5-manifolds with fundamental group of order 2	6-manifolds: 1-connected	6-manifolds: 2-connected
Algebraic mapping cone	Algebraic surgery X (Ex)	Almost framed bordism (Ex)
Amphicheiral	Amphicheiral manifold	Aspherical manifolds
Atiyah Conjecture and finite groups (Ex)	Atoroidal 3-manifolds (Ex)	Axiomatization of the manifold concept
B-Bordism	Betti numbers of 3-manifolds (Ex)	Blanchfield form
Bonn THDM 2013: Background	Bonn THDM 2013: Exercises	Bonn THDM 2013: Program
Bonn THDM 2013: Schedule	Bordism	Bordism and cobordism
Borel Conjecture for compact aspherical 4-manifolds	Borel Conjecture for the 2-torus (Ex)	Borel conjecture in dimensions 1 and 2 (Ex)
Bott periodicity and exotic spheres: some comments	Boundaries of Fuchsian groups (Ex)	Boundaries of symmetric complexes (Ex)
Brouwer degree, domination of manifolds and groups presentable by products	Bundle structures and lifting problems (Ex)	Canonical connection
Cell attachments for surgery (Ex)	Chain duality III (Ex)	Chain duality II (Ex)
Chain duality IV (Ex)	Chain duality I (Ex)	Chain duality VII (Ex)
Chain duality VI (Ex)	Chain duality V (Ex)	Characteristic rank of a real vector bundle
Chiral manifold	Chirality	Circle actions on 3-manifolds (Ex)
Classification just below the stable range	Classifying Poincaré complexes via fundamental triples	Classifying spaces for families of subgroups
Classifying spaces for proper group actions (Ex)	Closed manifolds are closed ANR-homology manifolds (Ex)	Complete intersections
Complex bordism	Computation of certain L-groups II (Ex)	Computation of certain L-groups I (Ex)
Concordance implies isotopy for smooth structures on 3-manifolds?	Connected sum	Connected sum of topological manifolds (Ex)
Connection on a principal bundle	Connections	Contact manifold
Covariant derivative	Cubical simplicial volume of surfaces	Curvature identities
Curvature properties of exotic spheres	Curvature tensor and second derivative	Degree one normal maps to the 3-sphere (Ex)
Dehn surgery (Ex)	Does the existence of a string structure depend on a spin structure ? (and a generalization)	Dold manifold
Double suspension (Ex)	Dual Thurston polytope of the 3-torus (Ex)	Dynamics of foliations
E8-form (Ex)	Elementary invariants of Heegaard diagrams (Ex)	Elementary matricies (Ex)
Embedding	Embedding (simple definition)	Embedding homology 3-spheres in the 4-sphere
Embeddings in Euclidean space: an introduction to their classification	Embeddings in Euclidean space: plan and convention	Embeddings just below the stable range
Embeddings just below the stable range: classification	Embeddings of 3-manifolds in 6-space	Embeddings of 4-manifolds in 7-space
Embeddings of k-complexes in 2k-manifolds and minimum rank of partial symmetric matrices	Embeddings of manifolds with boundary: classification	Equivariant homology (Ex)
Equivariant intersection number of π-trivial immersions	Equivariant maps (Ex)	Euler characteristic as surgery obstruction (Ex)
Even dimensional surgery obstruction (Ex)	Exotic spheres	Exotic spheres and chirality (Ex)
Extending functors on the category of manifolds and submersions	Extensions of groups (Ex)	Fake complex projective spaces
Fake lens spaces	Fake projective spaces in dim 6	Fake projective spaces in dim 6 (Ex)
Fake real projective spaces	Farrell-Jones Conjecture for finite groups (Ex)	Fibre homotopy trivial bundles (Ex)
Finitely dominated CW complexes (Ex)	Foliation	Foliations
Formal group laws and genera	Formations and chain complexes I	Formations and chain complexes II (Ex)
Formations and chain complexes I (Ex)	Forms and chain complexes II (Ex)	Forms and chain complexes I (Ex)
Framed bordism	Freedman's classification and the Q-form hypothesis (Ex)	Fundamental class
Fundamental groups of 3-dimensional spherical space forms	Fundamental groups of surfaces (Ex)	GKM manifold
Generator sets and the kernel formation	Generator sets and the kernel formation (Ex)	Geometric 3-manifolds
Gluck construction	Grassmann manifolds	Group actions on Euclidean spaces
Group actions on disks	Group actions on spheres	Handlebody decompositions of bordisms
Handlebody decompositions of bordisms (Ex)	Heegaard splittings	Heegaard splittings (Ex)
High codimension embeddings	High codimension links	Hilbert manifold
Hirsch-Smale theory	Hirzebruch surfaces	Historic publications
Homeomorphisms of balls	Homology braid (Ex)	Homology braid II (Ex)
Homology braid I (Ex)	Homotopy spheres III (Ex)	Homotopy spheres II (Ex)
Homotopy spheres IV (Ex)	Homotopy spheres I (Ex)	Hyperbolic 3-manifolds
Hyperbolic Surfaces	Idempotents in group rings (Ex)	Immersing n-spheres in 2n-space (Ex)
Immersion	Impressum	Inertia group II (Ex)
Inertia group I (Ex)	Integral homology 3-spheres embed (Ex)	Integral homology 3-spheres embed in the 4-sphere (Ex)
Intersection form	Intersection forms (Ex)	Intersection number of immersions
Isotopy	K-group, all (Ex)	K-group, first (Ex)
K-group, zeroth (Ex)	K-group, zeroth II (Ex)	K-groups of oriented surface groups (Ex)
K-invariant for G/PL (Ex)	KO-Characteristic classes	Kappa classes (Ex)
Kernel formation	Kernel formation (Ex)	Kervaire-Milnor Braid (Ex)
Knots, i.e. embeddings of spheres	Knotted tori	Kreck2018
L2-Betti numbers for the universal covering of the circle (Ex)	Laitinen conjecture	Legal Notice
Lens spaces	Lens spaces: a history	Lens spaces in dimension three: a history
Levi-Civita connection	Lie groups I: Definition and examples	Linking form
Links of singular points of complex hypersurfaces	MATRIX 2019 Interactions: Exercises	MATRIX 2019 Interactions: Problems
MATRIX 2019 Interactions: Questions	Main Page	Manifold
Manifolds cross a circle (Ex)	Manifolds with singularities	Microbundle
Microbundles (Ex)	Middle-dimensional surgery kernel (Ex)	Milnor Hypersurfaces
Minimal dimension of BG (Ex)	Module:String	Non-orientable quotients of the product of two 2-spheres by Z/4Z
Non-prime solvable fundamental groups (Ex)	Non-reducible Spivak Normal Fibrations (Ex)	Normal 1-types of 4-manifolds (Ex)
Normal and tangential structures (Ex)	Normal bordism - definitions (Ex)	Normal bundles in products of spheres (Ex)
Normal invariants and G/O (Ex)	Normal invariants of products (Ex)	Normal maps - (non)-examples (Ex)
Normal maps and submanifolds (Ex)	Novikov Conjecture	Novikov additivity II (Ex)
Novikov additivity I (Ex)	Oberwolfach Surgery Seminar 2012: Discussion	Oberwolfach Surgery Seminar 2012: Exercises
Oberwolfach Surgery Seminar 2012: General information	Oberwolfach Surgery Seminar 2012: Glossary	Obstruction classes and Pontrjagin classes (Ex)
One fixed point actions	One fixed point actions on spheres	Open book
Orbifold (Wikipedia)	Orientation character	Orientation covering
Orientation of Fredholm maps between Hilbert manifolds	Orientation of manifolds	Orientation of manifolds in generalized cohomology theories
Oriented bordism	Oriented cover	Parametric connected sum
Petrie conjecture	Pin structures	Plans for the Atlas
Plumbing	Plumbing (Ex)	Poincaré's conjecture
Poincaré's cube manifolds	Poincaré's homology sphere	Poincaré Duality Spaces
Poincaré duality (Ex)	Poincaré duality III (Ex)	Poincaré duality II (Ex)
Poincaré duality IV (Ex)	Polytope invariant of a manifold	Presentations
Presentations (Ex)	Prime decomposition theorem in high dimensions	Principal bundle of smooth manifolds
Product rigidity (Ex)	Products of ANR-homology manifolds (Ex)	Projective plane: a history
Pseudoholomorphic curves	Quadratic formations (Ex)	Quadratic forms I (Ex)
Quadratic forms for surgery	Questions about surgery theory	Quillen plus construction (Ex)
Reducible Poincaré Complexes (Ex)	Refacciones	Regensburg Surgery Blockseminar 2012: Exercises
Regensburg Surgery Blockseminar 2012: General information	Regensburg Surgery Blockseminar 2012: Program	Regular homotopy group of immersions (Ex)
Reidemeister torsion (Ex)	Representing homology classes by embedded 2-spheres (Ex)	Rho-invariant
S-duality III (Ex)	S-duality II (Ex)	S-duality I (Ex)
Sandbox	Selected publications in manifold theory	Self-maps of simply connected manifolds
Simple closed curves in surfaces (Ex)	Simplicial volume	Smash product (Ex)
Smoothing the Kervaire manifold (Ex)	Smoothings of products (Ex)	Some calculations involving configuration space of distinct pairs
Some calculations involving configuration spaces of distinct points	Space forms: a history	Sphere bundles and spin (Ex)
Spin bordism	Spivak normal fibration (Ex)	Splitting invariants (Ex)
Stability of the E8-form (Ex)	Stability of vector bundles (Ex)	Stable classification of 4-manifolds
Stable classification of manifolds	Steenrod problem	Stiefel-Whitney characteristic classes
Stratifold (Wikipedia)	String bordism	Structure set (Ex)
Structured chain complexes (Ex)	Structured chain complexes III (Ex)	Structured chain complexes II (Ex)
Structured chain complexes IV (Ex)	Structured chain complexes V	Structured chain complexes V (Ex)
Structures on M x I (Ex)	Super manifolds: an incomplete survey	Supplement III (Ex)
Supplement II (Ex)	Supplement I (Ex)	Surface
Surface groups as subgroups of hyperbolic groups (Ex)	Surfaces	Surgery exact sequence, PL sphere (Ex)
Surgery obstruction, Arf-invariant (Ex)	Surgery obstruction, signature (Ex)	Surgery obstruction groups
Surgery obstruction map I (Ex)	Surgery resources	Suspension of a symmetric complex (Ex)
Symplectic manifolds	Tangent bundles of bundles (Ex)	Tangential homotopy equivalences (Ex)
Tensor	Tensor derivative	Thickenings
Thom spaces	Thom spaces (Ex)	Three dimensional Heisenberg group (Ex)
Thurston norm and the dual Thurston polytope (Ex)	Topological structures on products of spheres (Ex)	Torsion-free solvable hyperbolic groups (Ex)
Torsion in the B-bordism group for connective covers of BO	Torsion tensor	Totally geodesic submanifold
Trisection genus	Uniqueness of contractible coboundary (Ex)	Unitary bordism
Unoriented bordism	Volume of a closed hyperbolic 3-manifold (Ex)	Wall realisation (Ex)
Website Information	Whitehead torsion (Ex)	Whitehead torsion III (Ex)
Whitehead torsion II (Ex)	Whitehead torsion IV (Ex)	Whitehead torsion V (Ex)
Wu class	Π-trivial map