Highlights of top quark production measurements at ATLAS

Measurements of top-quark production have been performed in various modes with the ATLAS detector at the Large Hadron Collider. Inclusive and differential top-quark pair ($t$$\bar{t}$) production cross sections are discussed with emphasis on associated QCD activities. The interference of timelike top-quark propagators in $Wt$+$b$ and $t$$\bar{t}$ productions is studied in the single top production. Top-quark productions in $Z$ + $t$ and $t$$\bar{t}$ + boson have been searched for using a multi-variate analysis method to maximize the sensitivity for their small cross sections and complicated kinematics. The obtained significances indicate the evidence for $Z$ + $t$ production and discovery of $t$$\bar{t}$ + $H$, top-Yukawa coupling.