Primary domians can pass page rank to subdomains but its not the same - its the same with subpages of a main site. We have just started a new subdomian off the main domian and it has already gained toolbar page rank of 2 the main domian has a toolbar page rank of 6. Hope this helps This post might be useful http://searchengineland.com/how-changes-to-the-way-google-handles-subdomains-impact-seo-12899
Generally main domain get more PR than sub-domain. Actually there are some type of mathematical calculation. The numbers of subpages if increase then the possibility of Main page PR may be High. But some exceptional may also occur specially when you create a sub page as your landing page.
you can check subdomain PR via google toolbar. I am using subodomain for my blog and its alexa rank is that of its domain but not of itself Hope the case is not same with google PR
Every URL whether the root of your main domain, a page on your main domain, root of a sub-domain, or page on a sub-domain has it's PR calculated based on its OWN inbound links... So you could have a PR10 domain and if your subdomain could be PR0. PR is totally based on a URL's inbound links. Sub-domains do not automatically inherit ANY PR from the main domain. If the main domain never links to the sub-domain then the sub-domain gets NONE of it's PR from the main domain. If the main domain links to URLs on the sub-domain then the main domain's page that links to the URL on the sub-domain will pass the sub-domain the same amount of PR it passes every other link on the main domain's page.
The same way you check the PR of any URL. Install Google Toolbar. Enable the Page Rank tool. Navigate to the URL and hover over the tool to see what the page rank is. NOTE: This is "toolbar" page rank that is ALWAYS out of date, even the very day that Google publishes an update. By the time it's published it is generally weeks old. They typically update it about once every 2-4 months. Toolbar PR should be taken w/ a grain of salt. It's much like looking at a star in the night's sky that is hundreds of lightyears away that no longer exists because it burned out 10 years before, but you still see its light traveling through space. You're looking at history... Your "real" page rank is constantly being updated around the clock as they crawl and index pages across the web including your site, pages that link to your site, pages that link to pages that link to your site, pages that link to pages that link to pages that link to your site, and so on... Unfortunately, they never display your "real" PR.
PR on a subdomain is different from a domain. They exist independently. If nothing links to your subdomain it will have 0 pagerank. Don't think of it as a subdomain think of it as a separate domain if that makes sense.
i have a blog, posted on a domain www.maine-exista.ro and a web directory on a subdomain. i used to have PR 3 for the subdomain and PR 1 for domain (which i haven't optimized at all) about one week ago the PR for the subdomain dropped to 0. every single page have theyr own Page Rank. cheers !
The inner page or sub domain have a different PR always. you can check them installing a google tool bar on ur browser
Can't see how it is related. You can get PR on subdomain/subpage like on home page. I've seen few cases where subdomain/subpage got higher PR than homepage.