{"product_id":"2940016386225","title":"MULTILINEAR FUNCTIONS OF DIRECTION","description":"The exposition is throughout clear and interesting. The subject matter provides one more example of the way in which mathematics covers the domains of abstract thought with ideas of ever increasing generality.\u003cbr\u003e\u003cbr\u003eThe distinctive feature of this work is that the functions discussed are primarily not functions of a single variable direction, but functions of several independent directions.\u003cbr\u003e \u003cbr\u003eFunctions of a single direction emerge when the directions originally independent become related, and a large number of elementary theorems of differential geometry express in different terms a few properties of a few simple functions.","brand":"OGB","offers":[{"title":"Default Title","offer_id":47164211855600,"sku":"2940016386225","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940016386225_p0.jpg?v=1763635129","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940016386225","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}