New posts in spheres

Area of a circle on sphere

geometry circles spherical-geometry spheres

The tangent space $T_x \mathbb S^n$ consists of such points in $\mathbb R^{n+1}$ that are perpendicular to $x$

differential-geometry solution-verification smooth-manifolds spheres

Diffeomorphism between $\mathbf S^2 \times \mathbf S^2$ and complex projective hypersurface

differential-geometry smooth-manifolds projective-space spheres diffeomorphism

Distance between two points on a sphere.

spheres spherical-geometry

Does a set of $n+1$ points that affinely span $\mathbb{R}^n$ lie on a unique $(n-1)$-sphere?

geometry euclidean-geometry spheres

Evaluate $\int_{\Bbb S^n}\int_{\Bbb S^n}|s-t|^{-\lambda}\rm dsdt$

integration inequality spheres

Reflections on a sphere

geometry 3d reflection spheres

Sphere inscribed in a cone

geometry volume spheres

Can the Fibonacci lattice be extended to dimensions higher than 3?

spheres packing-problem

Infinity-to-one function

general-topology continuity infinity spheres

Surface of the intersection of $n$ balls

geometry surfaces combinatorial-geometry spheres convex-geometry

Finding a 4th point in 3D space knowing 3 other points and 2 distances to the 4th point from them

3d spheres

intersection of hypercube and hypersphere

geometry volume spheres

Volume bounded by a sphere of radius $1$ in 4 dimensions

integration multivariable-calculus volume spheres

Investigating a $1/2$-dimensional sphere

euclidean-geometry spheres geometric-measure-theory dimension-theory-analysis

Could exists a vector field on $\mathbb{S}^{2}$ with exactly $n$ zeroes?

differential-geometry smooth-manifolds vector-fields spheres compact-manifolds

Equal slicing of my spherical cake

calculus integration volume spheres fair-division

Nonexistence of a homeomorphism between a open set and the unit sphere

real-analysis general-topology spheres

Mean distance between 2 points in a ball

geometry probability-distributions spheres

Why spheres are not symplectic manifolds?

differential-geometry manifolds symplectic-geometry spheres compact-manifolds