The Geometry of René Descartes: with a Facsimile of the ...
René Descartes
with a Facsimile of the First Edition René Descartes. Betti groups; how concepts of topology are useful in math and physics. 25 figures. 57pp. 5 x 81⁄2. 048660747X COMBINATORIAL TOPOLOGY, P. S. Alexandrov. Clearly written ...