New posts in Qcqp

Eigenvalue bound for quadratic maximization with linear constraint

What is the range of $\vec{z}^{ \mathrm{ T } }A\vec{z} $?

Projection of an interior point of an ellipsoid onto itself

Minimizing a quadratic function subject to quadratic constraints

Distance of ellipse to the origin

Maximize the value of $v^{T}Av$

Trace minimization with constraints

Maximize the Euclidean norm of a matrix times a vector on unit sub-spheres

Linearly constrained eigenvalue problem