{"product_id":"variations-on-the-full-versus-strong-problem-von-todd-niven","title":"Variations on the Full Versus Strong Problem","description":"\u003cp\u003eAt the time of writing, every known example of a  full  duality based on a quasi-variety generated by a  finite algebra has in fact been a strong duality. Is  it the case that every full duality is a strong duality? This question goes back to the origins of  the theory of natural dualities and was solved shortly after the writing of this work by  Clark, Davey and Willard (2006).  This work focuses on restrictions, and variations,  of  the above question. We first study the problem of  when a full duality is necessarily strong. We also  look at the restriction of this problem to the  finite  members of a given finitely generated quasi-variety,  where remarkably it has been shown that the notions  of full and strong duality are not equivalent.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838396897\"\u003e\u003ch3\u003ein the Theory of Natural Dualities\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838396897","offer_id":39497064710237,"sku":"9783838396897","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/e8563b9c-3bf2-44dc-90aa-0249fc8703ac.jpg?v=1757654455","url":"https:\/\/shop.autorenwelt.de\/en\/products\/variations-on-the-full-versus-strong-problem-von-todd-niven","provider":"Autorenwelt Shop","version":"1.0","type":"link"}