412

Answers

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5

Find minimum area ellipse which encloses two ellipses

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Solid angles of a tetrahedron

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Point sets in Euclidean space with a small number of distinct distances

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how to cover a set in a grid with as few rectangles as possible

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Examples of seemingly elementary problems that are hard to solve?

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Worst known algorithm in terms of Big-O (more precisely Big-theta)?

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Book on mixed Hodge structures?

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Can we make Buchberger’s algorithm faster for a given ideal if we are allowed to vary the monomial order?

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Uniquely hamiltonian graphs with minimum degree 4

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Readings for an honors liberal art math course

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Nearest trio of neighbours for non-intersecting ellipses

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Theorems about piercing numbers

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Radial tilings with variable area ratios

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A book in topology

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Placing points on a sphere so that no 3 lie close to the same plane

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What is the smallest diameter ring a non-convex polyhedron can pass through in 3-space?

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Is it possible to partition $\mathbb R^3$ into unit circles?

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determining k-edge-connectivity of a graph

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Compute the Centroid of a 3D Planar Polygon

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Lower Bounds in Theoretical Computer Science

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What is the most general class of metric spaces for which the closest pair of points in a finite subset can be found in time O(n^(1+eps))?

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Tying knots with reflecting lightrays

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Is all ordinary mathematics contained in high school mathematics?

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Riemannian surfaces with an explicit distance function?

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Advanced view of the napkin ring problem?

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When is ArcTan a rational multiple of pi?

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Random knot on six vertices

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Finding points inside innermost convex hull

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What are the most general classes of simplicial complexes or posets for which the Charney-Davis conjecture is known, and what is the most general setting for which it might expected to be true?

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Limit of a sequence of polygons.