div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentguermondpublicationssurlaform-let-i-j-k-be-a-direct-orthogonal-normedhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: €¦ · Let i j k be a direct orthogonal normed basis of 123 R2 is embedded in R3 so that i j is a direct orthogonal normed basis of R2 Let Q be an open subset of R2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220422215ec7abcb76d4fe3f047ef801html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentguermondpublicationssurlaform-let-i-j-k-be-a-direct-orthogonal-normedhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: €¦ · Let i j k be a direct orthogonal normed basis of 123 R2 is embedded in R3 so that i j is a direct orthogonal normed basis of R2 Let Q be an open subset of R2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220422215ec7abcb76d4fe3f047ef801html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentguermondpublicationssurlaform-let-i-j-k-be-a-direct-orthogonal-normedhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: €¦ · Let i j k be a direct orthogonal normed basis of 123 R2 is embedded in R3 so that i j is a direct orthogonal normed basis of R2 Let Q be an open subset of R2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220422215ec7abcb76d4fe3f047ef801html5thumbnails3jpg width=140 height=200...