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With regard to classical Turkish poetry, are there such things as Turkish sonnets?  Specifically in Iabic pentameter?  I´m interested in researching rhythm and its relationship to linguistic flux between Seitic, Euro-altaic, Indo-Euro, and traditional English prose.  It´s a tall order, but any and all help is greatly appreciated.  Thank you.  Also, any recomendations of authors or scholars would be super.

Iambic pentameter, sorry...keys are sticking...

I´m not an expert on Turkish poetry (or any poetry for that matter), but I don´t think it contains sonnets. I think the form that was used in classical poetry is ghazal derived from either Arabic or Persian literature. Also, I don´t think iambic pentameter is something that Turkish naturally would lend itself to. You´re probably looking for more scholarly resources, but maybe this quick overview of metric systems in different languages might give you a good starting point for a more in-depth research.

In the late-Ottoman era, after opening their gates widely to the West, some poets started to use the sonnet but not in iambic pentameter but in arud, an Eastern verse meter. The first sonnet of Turkish literature is "Bir Şi´r-i Na-Nüvişte" (An Unwritten Poem) by Cenap Şahabettin. Later on poets like Tevfik Fikret and Ahmet Haşim also wrote sonnets. But the sonnet type didn´t become widespread, so Turkish literature is not very rich in this area.