share capital

I saw following news. What is share capital. It says share capital is not affected by cancelling shares. Are these treasury shares? --------- Nokia (NOK) has decided to cancel 185 409 913 shares held by the company. The cancellation of shares does not have an effect on the amount of share capital of the company. Following the cancellation the number of shares in the Company will be 3 797 402 044. ---------- Treasury shares are deducted from share capital, so when they are cancelled, there is no effect on share capital. edit: changed link to wiki