grandes-ecoles 2015 QIV.E

grandes-ecoles · France · centrale-maths1__pc Invariant lines and eigenvalues and vectors Invariant subspaces and stable subspace analysis
Does there exist an endomorphism of $\mathbb{R}[X]$ admitting neither line nor plane stable? 
Does there exist an endomorphism of $\mathbb{R}[X]$ admitting neither line nor plane stable?
Paper Questions
QI.A QI.B QI.C QI.D QII.A QII.B QIII.A QIII.B QIV.A QIV.B QIV.C QIV.D QIV.E QIV.F QV.A QV.B QV.C QV.D