Question
assalam o alaikum,

 dear sir,
 
I would like , you to know about to apply harkats, in the beggining of certain ayats, in which usualy there is sukoon above the first letter. I knew that certain quran, comes with the harkats, but for instance quran rasm-osmani, in that one has to apply the harkat, it may be easy for an arab native, as they have the deeper essence of the language. but for an non-arab like me, it has to learned.
thanking you

maa salama

Answer
Wa alaikum assalaam wa rahmatullahi wa barakatuh,

You are referring to hamzah al-wasl which is at the beginning of words which have a sukoon as the first letter and employed when starting not when continuing.  We made a chart of the words in the Glorious Qur'an starting with hamzah al-wasl occurring after a marked stop which should help you. Please click on the link below.
http://www.abouttajweed.com/Verbs%20and%20Nouns%20beginning%20with%20hamzah%20al.pdf

Please also see the lessons on hamzah al-wasl at the following link:
http://www.abouttajweed.com/hamzah-al-wasl/index.php

You are most welcome.
Wa assalaam alaikum