Blogs about: Semialgebraic Geometry

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Deciding the convexity of semialgebraic sets II

Rod Carvalho wrote 11 months ago: Let denote the set of real symmetric matrices. We introduce a matrix-valued function defined by The … more →

Tags: Algebraic Geometry, Python, SymPy, Linear Matrix Inequalities, Semialgebraic Sets, Convex Algebraic Geometry, Spectrahedra, quantifier elimination, REDLOG

Deciding the convexity of semialgebraic sets

Rod Carvalho wrote 11 months ago: Given a basic closed semialgebraic set [1], , defined by where and , how can one decide if set is co … more →

Tags: Algebraic Geometry, Real Algebraic Geometry, Semialgebraic Sets, Convex Algebraic Geometry, quantifier elimination, REDLOG, reduce, Decision problems, convexity

Feasibility via quantifier elimination II

Rod Carvalho wrote 1 year ago: Suppose we want to decide whether the following semialgebraic set is nonempty. This is the same as d … more →

Tags: Algebraic Geometry, Real Algebraic Geometry, Semialgebraic Sets, quantifier elimination, Feasibility, REDLOG, reduce, Decision problems

Feasibility via quantifier elimination

Rod Carvalho wrote 1 year ago: Consider the system of polynomial equations and inequalities [1] whose solution set is the following … more →

Tags: Algebraic Geometry, Real Algebraic Geometry, Semialgebraic Sets, quantifier elimination, Feasibility, REDLOG, reduce, Decision problems

LMI representation of convex polytopes

Rod Carvalho wrote 1 year ago: Suppose we are given a convex polytope defined by the intersection of closed half-spaces where and . … more →

Tags: Algebraic Geometry, Real Algebraic Geometry, Linear Matrix Inequalities, Semialgebraic Sets, Convex Algebraic Geometry, Spectrahedra, convex polytopes

LMI representation of convex polygons

Rod Carvalho wrote 1 year ago: Consider the following non-strict linear matrix inequality (LMI) [1] where is a matrix-valued functi … more →

Tags: Algebraic Geometry, Real Algebraic Geometry, Linear Matrix Inequalities, Semialgebraic Sets, Convex Algebraic Geometry, Spectrahedra


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