div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=tion-is-a-regular-compact-surface-homeomorphic-to-2-we-take-in-the-space-a-rectangularhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · tion is a regular compact surface homeomorphic to $2 We take in the space a rectangular Cartesian coordinate system Oxyz and we choose the z-axis to be the axis of rotation of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer20220422155ebc1d40283b6136fd03d63ahtml5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=tion-is-a-regular-compact-surface-homeomorphic-to-2-we-take-in-the-space-a-rectangularhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · tion is a regular compact surface homeomorphic to $2 We take in the space a rectangular Cartesian coordinate system Oxyz and we choose the z-axis to be the axis of rotation of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer20220422155ebc1d40283b6136fd03d63ahtml5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=tion-is-a-regular-compact-surface-homeomorphic-to-2-we-take-in-the-space-a-rectangularhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · tion is a regular compact surface homeomorphic to $2 We take in the space a rectangular Cartesian coordinate system Oxyz and we choose the z-axis to be the axis of rotation of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer20220422155ebc1d40283b6136fd03d63ahtml5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=tion-is-a-regular-compact-surface-homeomorphic-to-2-we-take-in-the-space-a-rectangularhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · tion is a regular compact surface homeomorphic to $2 We take in the space a rectangular Cartesian coordinate system Oxyz and we choose the z-axis to be the axis of rotation of loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer20220422155ebc1d40283b6136fd03d63ahtml5thumbnails4jpg width=140 height=200 divdiv