I am trying to publish my set of ~1300 notes on various topics in mathematics, which I call my wiki, as PDFs which are interlinked by their URLs. The following subset of 942 notes is currently online.
- structures based on sets
- Topological spaces
- Group action on topological spaces
- Discrete subgroup acting on coset space
- Basis and subbasis for a topology
- Principal
-bundles over topological spaces - Vector bundles over topological spaces
- Closure of a subset of topological space
- Locally compact and 2-countable Hausdorff topological spaces are paracompact with countable refinement
- complex simpl
- complex sing
- cont f
- Covering dimension of topological spaces
- Eilenberg–Steenrod functors
- Local fields
- Local fields of characteristic 0
- Topological groups
- Uniformly continuous functions on a topological group
- Any onb of identity of a connected topological group generates it
- Image of discrete subgroups of topological groups
- Rigidity of discrete groups in topological groups
- Subsets of topological groups
- Locally compact Hausdorff topological group
- Translation on a topological group
- Continuous group action on a topological space
- Intersection of open, dense subsets of a topological space
- Local topological spaces
- Covering space of a topological space
- map
- Closed map between topological spaces
- Continuous maps between topological spaces
- When does a map between topological spaces send discrete sets to discrete sets
- Homotopy classes of maps
- Iterative dynamics of a continuous function on a topological space
- Local homeomorphisms between topological spaces
- Open maps between topological spaces
- Projection modulo compact factor
- Proper maps between topological spaces
- Quotient maps between topological spaces
- When is a local homeomorphism between topological spaces a covering map
- When is a local homeomorphism between topological spaces a closed map?
- Borel measures on a topological space
- Convergence for nets in a topological space
- Loops and a open cover of a topological space
- Paths in a topological space
- Product of topological spaces
- Ringed topological spaces
- Sheaf on open sets of a topological space
- Closed subsets of a topological space
- Discrete subsets of topological spaces
- Types of topological spaces
- Locally compact Hausdorff spaces
- Topological vector spaces over
or
- Metric spaces
- Set of all metrics on a set
- CAT(0)
- Space of all compact metric spaces up to isometry
- g
- Gromov hyperbolic spaces
- Metric space isometries
- Moeb
- Constructing more metrics
- quasi
- Metric spaces
- adherent, accumulation points, closure of a subset in a metric space
- Balls in a metric space
- Totally bounded subsets of a metric space
- Compact subsets of a metric space
- Covering of a subset of a metric space
- Open cover of a compact metric space
- Function between metric spaces
- Continuous functions between metric spaces
- Uniformly continuous functions on a metric space
- Contraction map in a metric space
- Topological entropy of maps between metric spaces
- Limit of a function between metric spaces
- Sensitive dependence on initial conditions of dynamics of a map between metric space
- to
- interior, exterior, boundary points in a metric space
- open and closed sets in a metric space
- Metric simplicial complexes
- Metric subspaces
- Uniformly discrete spaces of bounded geometry
- manifolds
- Closed aspherical manifolds
-manifold - Hermitian manifolds
- Kahler manifolds
- Kahler manifolds of complex dimension 2, AKA Kahler surfaces
- smooth
-manifold - Smooth Lie group action on a smooth manifold
- bord
- Borel measures on a smooth manifold
-bundles over smooth manifolds - Vector bundle on smooth manifolds
- Curves in smooth manifolds
- Density on smooth manifolds
- Functions between smooth manifolds
- Functions from smooth manifolds to
- Flows on a smooth manifold
- Locally
-manifolds - Smooth singular homology of a smooth manifold
- Isomorphisms and automorphisms of smooth manifolds
- Lagrangian flows
- Local transformation rules
- Moduli space of Riemannian metrics on a smooth manifold
- Moduli space of quotients
- Quotient manifolds
- s
- Submanifolds of smooth manifolds
- Tangents on a smooth manifold
- Cotangent space on a smooth manifold
- Connection on the tangent bundle of a smooth manifold
- Differential forms on smooth manifolds
- Differential 1-forms on smooth manifolds
- Chain complex of differential forms on a smooth manifold
- Exterior derivative operator on space of smooth differential forms
- Functoriality of
on smooth manifolds - The integral map on space of differential forms
- Three different relative chain complexes of differential forms
- The sheaf of differential forms on open subsets of manifolds
- tensor
- Tangent space of a smooth manifold
- Canonical bijection of
with equivalence classes of velocities - Tangents on smooth manifolds as derivations
- local basis of a tangent space of a smooth manifold
- Tangent bundle
of a smooth manifold - Cotangent bundle
on a smooth manifold - Comparison of constructions with tangent vectors
- Tangent frames on smooth manifolds
- Tangent vector fields on a smooth manifold
- Canonical bijection of
- Cotangent space on a smooth manifold
- Principal bundles over smooth manifolds
- Manifold with a flow
-manifold group (Lie groups) - Adjoint representation of a Lie group
- Conjugation action of a Lie group on itself
- Classification of Lie groups
- Compact Lie groups
- Connected Lie groups with discrete center
- Connected Lie groups with non-surjective exponential map
- Discrete subgroups of Lie groups
- Smooth maps onto a Lie group
- Lie groups with surjective exponential map
- Maurer-Cartan form
- Left-invariant Lagrangian on a Lie group
- Lie algebra of a lie group
- Bi-invariant metrics on Lie groups
- Left invariant Riemannian metric on a Lie group
- Semi-simple
-Lie groups - Almost simple groups
- Virtual subgroups of Lie groups
- Lie group with dilations
- Homogeneous manifold
- Finsler manifold
-manifold semi-Riemannian - Universal cover of semi-Riemannian manifolds
- Curvature of a Riemannian manifold
- Einstein manifolds
- Exponential map from tangent bundle
- Geodesics past conjugate points in a Riemannian manifold
- Riemannian manifolds with ergodic geodesic flow
- Isometries of a semi-Riemannian manifold
- Laplacian on a Riemannian manifold
- Parallel transport on a curve in a semi-Riemannian manifold
- Conjugate points in a semi-Riemannian manifold
- Quotients of Riemannian manifolds
- Complete Riemannian manifolds
- Integrating sectional curvature
- Riemannian manifolds with negative curvature
- Geodesic flow on Riemannian manifolds of negative curvature
- Discrete subgroup of isometry group of a simply connected Riemannian manifold of negative curvature
- Rigidity of marked length spectrum for Riemannian 2-manifolds of negative curvature
- Equivalence of marked length spectrum, geodesic flow and boundary of universal cover of Riemannian manifolds with negative curvature
- Riemannian manifolds with non-positive sectional curvature
- Cut locus in a complete Riemannian manifold
- Exponential map for a complete Riemannian manifold
- Geodesic completeness
metric completeness of Riemannian manifolds - Geodesics in homotopy classes
- Homogeneous Riemannian manifolds
- Homogeneous and isotropic Riemannian manifolds
- Poles of a complete Riemannian manifold
- Riemannian symmetric spaces
- Uniquely geodesic complete Riemannian manifolds
- Riemannian homogeneous manifolds where
is a diffeomorphism - Complete Riemannian manifolds without conjugate points
- Riemannian connection
- Riemannian submanifolds
- Totally geodesic submanifolds of semi-Riemannian manifolds
- Tangent bundle of a Riemannian manifold
- Unit tangent bundle of a Riemannian manifold
- Vector fields on Riemannian manifolds
- Sub-Riemannian manifolds
-manifold Poisson -manifold symplectic - Symplectic capacities
- Compatible almost complex structure on a symplectic manifold
- Generating symplectomorphisms
- Symplectic homogeneous manifolds
- Quantization of symplectic manifolds
- Lagrangian submanifolds of a symplectic manifold
- Symplectic Lie group action on a symplectic manifold
- Hamiltonian vector fields on a symplectic manifold
- Multisymplectic manifolds
- Spin
-manifold -manifold topological - Toric manifolds
- Manifolds with compatible triples
- Measure spaces
- Topological spaces
- squishy
, , , - Farey graph, complex and tree
- Heisenberg group
- Incomplete hyperbolic polygon mod side-pairing
, , lattice - Matrices
- Mobius endomorphisms
- N
- O
- Elementary group with finite and infinite sided Dirichlet polyhedra
- Pd
- Polynomials
- pow
- rat
- SL2 semi N3 C
- Sp
- SU
- Seifert–Weber dodecahedral 3-manifold
- Sym
- UT
- stretchy
- Trefoil
knot - The only compact connected Lie group that can act faithfully on a torus is itself
- Hecke algebras
- Cantor set
- Configuration space of
rigid points in - dihedral
- Free groups
- Figure 8 knot
- Lamplighter group on
- Homeomorphism of
that sends to a countable closed discrete subset and- Mapping torus of the antipodal map of
- seq
- shift
-bundle- Symmetric group
- T
- Three
glued at their boundaries - Thompson’s group
- 3-valent tree
- 4-valent tree
with product topology- Whitehead manifolds
- Trefoil
- stem
- HomGrp
- Knots
- O+ R1 n
- Subgroups of
- Discrete subgroups of
hyperbolic -manifolds/orbifolds- Convex cocompact discrete subgroups
- Combination of discrete subgroups of
- Exponential sum of a discrete subgroup of
- Measure homology on a hyperbolic manifold
- Discrete subgroups with limit set a discontinuum
- Limit sets of discrete subgroups
- Discrete subgroups with limit set a
-sphere - Counting orbits of discrete subgroups of
in - Rigidity of
-hyperbolic manifolds - Schottky
- Subgroups of
- Objects stemming from spaces over
- Objects stemming from
-spaces of dimension 2- Riemann surfaces
- Vector bundles on complex 1-manifolds
- Classification of complex 1-manifold
- Riemann’s existence of holomorphic maps between compact Riemann surfaces
- Divisors on compact Riemann surfaces
- Fluid
- Meromorphic differentials on Riemann surfaces
- Holomorphic functions on a complex 1-manifold
- Holomorphic maps of type
- Rational maps
- Hurwitz scheme
- Moduli space of
-manifolds - Meromorphic functions on a Riemann surface
- Normalization of plane projective
-curves and Riemann surfaces - Riemann surfaces defined over a number field
- Hyperelliptic Riemann surfaces
- T C
- Riemann surfaces with a holomorphic 1-form
-analytic spaces of dimension 1- Riemann quasiconformal surfaces
- Teichmuller space of surfaces
- Riemann surfaces
- Objects stemming from
-spaces of dimension 3 - Objects stemming from
-spaces of dimension 4 - subobjects of and functions on
and its quotients- Holomorphic functions on spaces over
of dimension 1- Approximation of holomorphic functions on
by rational functions - Embedding unit disk
into - Factorization of holomorphic functions on
- Global holomorphic functions
- Equivalent descriptions of holomorphic functions
- mapping
- Bounding derivative of holomorphic mappings
- Bounding holomorphic functions linearly
- Branch points and ramification index of holomorphic functions
- Disk in holomorphic image of disk
- Size of holomorphic image of disks
- Maximum and minimum of holomorphic functions
- Fibers of holomorphic mappings
- Non-constant holomorphic functions locally look like
and are open mappings - Biholomorphic mapping onto disk
- Conformal radius of pointed simply connected open subsets of
- Holomorphic functions on punchered disk
- Holomorphic function whose singularities are not isolated
- A holomorphic map branched over
- Meromorphic functions on the complex plane
- Holomorphic functions meromorphic at infinity
- Modular forms
- Reconstructing meromorphic functions from stalks
- Extending holomorphic functions by reflections
- Rotational symmetrization of holomorphic functions
- Sheaf of holomorphic functions on
- Zeros and singularities of holomorphic functions
- Approximation of holomorphic functions on
- An
- Open subsets of
with boundary - Complex ODEs in
- Circle packing on
- Circle packing converges to the Riemann biholomorphism
- Bounded connected open subsets of
- Connected circular open subsets of
- Continuous functions on
- Dyadic cubes
- Curves
- dense
- Differentiable functions
- Functions
differentiable at a point - Comparing a function and it derivative
- Absolutely continuous functions on
- Distributional derivatives
- Double derivative/Laplace operator on the circle
- Fractional derivative
- Infinite limit of derivatives
- Space of continuous and continuously differentiable functions on
- Derivative of maps
- Zooming of a map
- Functions
- equations
- Differential forms on
- Fourier-Wigner transform
- Fourier
- Harmonic functions composed with conformal maps
- Hilbert transform
- Fourier-Cauchy-Poisson correspondence of holomorphic and harmonic functions on the unit disk and their boundary values
- Holomorphic subsets of
- Regular hypersurfaces in
- Orientable hypersurfaces in
- int
- Laplace operator on
- Lebesgue measurable subsets of and functions on
- Functions with uniformly bounded mean oscillations on cubes
- Decomposition of
into bounded and unbounded parts - Calderon-Zygmund decomposition
- Lebesgue density of measurable sets
- Functions with uniformly bounded mean oscillations on dyadic cubes
- Volterra operator
- Measurable functions on
-measurable function- Integrability and integral of measurable functions on
- Hardy-Littlewood maximal functions of
- Lebesgue averaging and differentiation
- Integrals of a monotonically converging sequence of functions
- Lebesgue integral from measure of undergraph
- Lebesgue measure of boundary of open sets in
- Local
-algebras - mapping
- Metric density of subsets of
- Monotone functions on
- Cauchy integral of periodic functions
- Polygons with integer vertices
- quasiconformal
- Open smooth maps
- Discrete subgroups of
- Discrete cocompact subgroups of
, flat tori - R1
- Ramified germs of smooth and holomorphic functions
- Open subsets of
- Open subsets of
equipped with the flat metric - Closed subsets of
equipped with smooth functions - Quasi-analytic smooth functions on
- Star-shaped subsets of
- ODEs in
Vector fields in- Constant of a flow in
- Euler’s iterative solution method for first order ODEs
- Existence of integral curves of vector fields in
- Fixed points
- Flow of a vector field in
- Graph
polynomial ODE - Gradient flows on
- Hamiltonian vector fields in
with standard symplectic form - Probability distribution of flow
- Volume change by flows on
- Constant of a flow in
- Holomorphic functions on spaces over
- Convex sets in
- Objects stemming from
-semi-simple/reductive Lie groups - set
- SL C 2
- Objects stemming from
- Kleinian groups
Hyperbolic 3-manifolds/orbifolds- Finitely generated, free Kleinian groups
- 2-generated Kleinian groups
- Finitely generated Kleinian groups
topologically tame oriented hyperbolic 3-manifolds/finite degree orbifold covers of - Building hyperbolic 3-manifolds by gluing polyhedra
- Kleinian group with
- Thick-think decomposition of hyperbolic
-manifolds - Kleinian ultra-Schottky groups
convex cocompact hyperbolic interior of 3-handlebodies
- Kleinian groups
- SL C n
- SL R 2
- Objects stemming from
- 2-generated subgroups of
- Fuchsian groups
oriented hyperbolic 2-manifold/orbifolds Riemann surfaces with branching signature- Artihmetic Fuchsian groups and Artihmetic hyperbolic 2-orbifolds
- Cocompact Fuchsian groups
- Central simple algebra
- Elementary Fuchsian groups
- Finitely generated Fuchsian groups
geometrically finite Fuchsian groups - Fuchsian groups of finite coarea
- Geodesic flow of Fuchsian groups and hyperbolic surfaces
- Decomposition of hyperbolic surfaces
- Infinitely generated Fuchsian groups
- Limit set of Fuchsian groups
- Marked hyperbolic surfaces
- subst.R PSL 2 discrete subg.over Q-bar
- Fuchsian Schottky groups
- Spectrum of hyperbolic surfaces
- Torsion-free Fuchsian groups
- Cocompact torsion-free Fuchsian groups
- Fuchsian triangle groups
- SU2C