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15
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Proof that a $Ax \le b$ with $A\in\mathbb{R}\setminus\mathbb{Q}$ is not a polyhedron

Published on
#polyhedra #integer-programming #discrete-geometry #convex-hulls
217
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How wide is the Birkhoff Polytope?

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#linear-algebra #permutations #polytopes #discrete-geometry #birkhoff-polytopes
83
Views

How to prove that $S=\{(x,y) \in \mathbb{R}^2 : x+y \leq 2 \}$ has no extreme points?

Published on
#convex-analysis #linear-programming #polyhedra #polytopes #discrete-geometry
152
Views

How can I start looking for extreme points in convex polytopes?

Published on
#convex-analysis #linear-programming #polyhedra #polytopes #discrete-geometry
40
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How to identify endpoints in convex polytopes with more variables than constraints?

Published on
#convex-analysis #linear-programming #polyhedra #polytopes #discrete-geometry
185
Views

Example of a discrete differential form which is closed but not exact?

Published on
#differential-geometry #differential-forms #computational-mathematics #computational-geometry #discrete-geometry
876
Views

Maximum number of vertices a polyhedron can have?

Published on
#linear-programming #polyhedra #polytopes #discrete-geometry
162
Views

Can K6 be described as a set of adjacent 3-polytopes?

Published on
#graph-theory #polytopes #discrete-geometry
490
Views

Geometry textbook

Published on
#geometry #reference-request #combinatorial-geometry #discrete-geometry
238
Views

Why does a 2-colourable simple graph with n nodes have no more than $(n^2/4)$ arcs?

Published on
#discrete-mathematics #graph-theory #discrete-geometry
227
Views

Is mean pairwise distance a metric over subsets of a metric space.

Published on
#metric-spaces #discrete-geometry
288
Views

Question related to a determinant of lattice

Published on
#number-theory #discrete-geometry
55
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Squaring the plane with consecutive integer squares. And a related arrangement.

Published on
#discrete-geometry #tiling #metric-geometry
585
Views

Squaring the plane, with consecutive integer squares. And a related arrangement

Published on
#combinatorial-geometry #discrete-geometry #tiling
147
Views

Volume of a parallelepiped

Published on
#number-theory #elementary-number-theory #discrete-geometry

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