Dear Sukhwinder Singh,

Which kind of topological calculations do you want to perform? To get you started, you can have a look at the Tutorial and Quantum Espresso examples. Don't hesitate to ask if you encounter some problems or have a specific question.

Best regards,

Dominik Gresch

Good morning

I am Sukhwinder Singh pursuing research at panjab university Chandigarh. I works on dft calculation by using Quantum espresso.I want to calculate topological behavior . I want to know how it's check.