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We consider a Sturm--Liouville $Ly=-y''+q(x)y$ in space $L_2[0,\pi]$ withpotential from Sobolev space $W_2^{-1}[0,\pi]$. Moreover, we assume, that$q=u'$, where $u\in L_2[0,\pi]$. We consider Direchlet boundary conditions$y(0)=y(\pi)=0$, although we can treat a boundary conditions of Sturm type. Itis known, that operators of such class have a discrete spectr with onlyaccumulation point $+\infty$ and the system $\{y_k\}_1^\infty$ of eigen andassociated functions is a Riesz basis in $L_2[0,\pi]$. Moreover, this basis isa Hilbert--Schmidt perturbation of the basis $\{sin(kx)\}_1^\infty$. In thispaper we prove the uniconvergence theorem: for any element $f\in L_2[0,\pi]$the sequence $P_nf-S_nf\to0$ as $n\to\infty$ in $C[0,\pi]$ (here $P_n$ and$S_n$ are the Riesz projectors to $\{y_k\}_1^n$ and $\{\sin(kt)\}_1^n$respectively).

Uniconvergence theorems for Sturm--Liouville operators with potentials from Sobolev space $W_2^{-1}[0,\pi]$