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Join experts in discussing differential geometry topics. This includes manifolds, Tensors and forms. Connections and curvature also. Differential and algebraic topology discussion.
Graduate Rotate a plane through its coefficients
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Graduate Simple Question on Homotopy Equiv. and Contractible Subspaces
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Graduate How to show a mapping is a diffeomorphism
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Undergrad Polygon Detection for Bay Selection and Vertical/Horizontal Line Drawing
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Graduate Finite intersection of closed sets is not necessarily closed
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Graduate What is the Equation for Finding the Minimum Area of a Non-Euclidean Surface?
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Graduate Levi-Civita proofs for divergence of curls, etc
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Graduate Minimal compactification of an infinite dimensional space
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Graduate Canonical orientation on level set submanifolds?
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Graduate Help on Jacobian Matrix for Cartesian to Spherical
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Graduate How Can Triangulation and Trigonometry Help Revisit a Beloved Camping Spot?
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Graduate How Do Knots in 4-Manifolds Influence Homology Classes?
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Undergrad Rotating Plane Point to xy Plane - CPtolemy
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Graduate Locally Euclidean and Topological Manifolds
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Graduate Tychonoff theorem and Zorn's lemma
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Undergrad Fish Cage Geometry: Finding Formula for a & b
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Graduate Piecewise-linear ball complexes: calculations with GAP
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Where Is the Emphasis in Holonomy?
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Graduate Is there a 4D compact smooth manifold with specific properties?
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Graduate Coordinate System: Rotating 2D & 3D Axes & Impact on Directed Cosines
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Graduate Sequences and Nets: Does (1/n) Converge to [0,1]?
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Graduate Homotopy and orientation preserving
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Graduate Mapping Class Group and Path-Component of Id.
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Graduate Some questions relating topology and manifolds
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Graduate Double application of Stokes' theorem to find the area of a simplex
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Graduate What is causing the discrepancy between the Hermite curve and the sine function?
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Graduate How does non-isotopic embeddings affect the homology of manifolds and knots?
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Graduate Constructing Covering Spaces of a Sphere
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Graduate Homology cross product and orientation
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Graduate What is the Bing Metrization Theorem?
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Graduate Question about the Nagata-Smirnov metrization theorem
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Graduate Diffeomorphisms and embedded submanifolds
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Graduate Question: vector integral in non-orthog coordinates
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High School Question about points on a circle ?
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Undergrad Does |a|*b + |b|*a halve the angle between two random vectors a and b?
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Graduate What are some examples of mixed tensors in physics?
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Graduate Lebesgue Measurability of Translated Sets?
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Graduate About coordinate transformations in general
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Graduate Is There a Missing Factor in the Nijenhuis Bracket Formula?
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Graduate Deriving the Lattice Growth Formula
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Graduate A compactification theorem issue
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Undergrad What comes after (i hat j hat k hat)
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Graduate Question regarding Munkres' proof of the Tychonoff theorem
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Graduate Problem from A Beautiful Mind
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Graduate Manipulating vector-matrices combinations
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Help with This: Can Someone Assist?
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Graduate Expressing cos(2π/n) without using trigonometric functions
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Graduate 2Questions: 1)Def. of Reg. Neighhoods 2)Zero in Homlgy and Hmtpy.
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Graduate A question about the Urysohn metrization theorem
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Graduate How can you geometrically see the homotopy between S^n/S^m and S^n-m-1?
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Graduate Is this formula applicable for defining max{u*,v*} as an outer measure on X?
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Graduate Vectyor bundles with all zero characteristic classes
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Graduate Calculus of variations on odd dimensional manifolds
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Graduate Does \(\tilde{y}^{j}\) depend on \(x^{i}\) in the tangent bundle framework?
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Undergrad Find Slope of 1st Line w/ Given Data
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Graduate Fast Computation of Fundamental Groups: Practical Methods and Tricks
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Graduate No Quadrilateral/Pentagon Knots: Simple Closed Polygons are Trivial
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Graduate Is a bundle with non-orientable fibers always trivial?
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Graduate Ontoness and Induced Maps on Fundamental Group.
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Graduate Isotopy between overlapping and non-over. Dehn Twists.
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Graduate Periodic curve as immersed submanifold
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Graduate Why does a map from simply connected space to U(1) factors through R?
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Graduate Spreading points evenly in plane
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Undergrad Maximising the area of a triangle of known perimeter
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Graduate Distance formula in hyperbolic metric
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Graduate What is the connection between the mapping class group of a torus and Gl(2,Z)?
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Undergrad Geodesic Dome Angles: Help for Math Wizards!
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Graduate So, the two definitions are equivalent.
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Undergrad Converting Longitude and Latitude into Meters
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Graduate Converting Rotation Matrices (Left handed to Right handed)
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Graduate Maps B2->S2 Define F+ & F-: Show Int w S2 = Int F+*(w) B2 - Int F-*(w)
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Graduate Geometric Example of Torsion Cycles and Relative Cycles (in Homology)
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Graduate What is the rank of the matrix of a reimannienne metric ?
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Graduate Definition of a 1-forme différentiel \alpha ^{X}
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Graduate What is the topological characterization of the Cantor set?
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Graduate Is every orientation form on a compact smooth manifold closed?
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Graduate Does a Compact Manifold Imply a Compact Tangent Bundle?
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Graduate Gradient in Spherical Coordinates: Computing w/ {em} & {wm}
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Graduate Differential Geom: Determining Partial Derivatives of f
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Graduate Covariant vs contravariant indices
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Graduate How is this possible/ what does it mean?
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High School Intersecting Planes: Visualizing & Explaining
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Graduate How Are Maurer-Cartan Forms Utilized in Physics?
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Graduate Non degeneracy of critical points
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Graduate Quotient Topology Explained: A Primer for Beginners
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Graduate How Do Generalized Poisson Brackets Apply to Canonical Relativity?
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Graduate Rotation of plane tangential to sphere
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Graduate Introduction to Topology Resources
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Graduate Are Same-Action Deck Transformations & Loops Equal for S1 x S1?
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Graduate Problem in proving d(x,y)=0 implies x=y.
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Undergrad Converting longitude/latitude to x/y
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Graduate Difference between a convex norm and strong convex norme ?
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Graduate Distances with non-euclidean metric
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Graduate Understanding the Automatic Formation of Lie Subgroups in a Lie Group
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Graduate Covering Space Action of Z on R2−{0}: Exploring φ
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Graduate How to Determine Current Directions from an Electrical Conductivity Tensor?
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Graduate How do we compute the geodesic between two points on a flat manifold?
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Graduate Covariant derivative and vector functions
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Graduate What is a Twistor: Explaining Geometric Applications
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Graduate Differing definitions of an inner product
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