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Forum: Topology and Advanced Geometry

General, Algebraic, and Geometric Topology; Differential Geometry and Tensor Analysis; Advanced Euclidean and Non-Euclidean Geometry, Projective Geometry

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  2. Example of surfaces

    Started by mathmari, January 21st, 2016 11:57
    find, graph, image, surface, wondering
    • Replies: 0
    • Views: 535
    January 21st, 2016, 11:57 Go to last post
  3. First and second fundamental form

    Started by evinda, January 19th, 2016 17:25
    du^2+2m, dv+, dv^2$$, form, fundamental
    • Replies: 5
    • Views: 681
    January 20th, 2016, 18:01 Go to last post
  4. Smooth function

    Started by mathmari, January 9th, 2016 21:03
    $s$, function, rightarrow, smooth, surface
    • Replies: 9
    • Views: 975
    January 20th, 2016, 12:07 Go to last post
  5. [SOLVED] Angle between the parameter curves

    Started by mathmari, January 18th, 2016 12:45
    $tildesigma$, angle, curves, parameter, wondering
    • Replies: 2
    • Views: 575
    January 19th, 2016, 19:08 Go to last post
  6. [SOLVED] Are they perpendicular?

    Started by mathmari, January 19th, 2016 12:46
    n=0, n_v=0, perpendicular, rightarrow, sigma_vcdot
    • Replies: 8
    • Views: 797
    January 19th, 2016, 16:28 Go to last post
  7. Flat ruled surfaces

    Started by mathmari, January 19th, 2016 14:44
    • Replies: 0
    • Views: 375
    January 19th, 2016, 14:44 Go to last post
  8. How do we get that formula?

    Started by mathmari, January 12th, 2016 18:00
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,345
    January 18th, 2016, 18:31 Go to last post
  9. Condition to be conformal

    Started by mathmari, January 18th, 2016 12:52
    $phi$, conformal, smooth, tag, text
    • Replies: 0
    • Views: 404
    January 18th, 2016, 12:52 Go to last post
  10. What information do we get?

    Started by mathmari, January 17th, 2016 18:41
    2 Pages
    1 2
    $nu_0, $sigma, information, rightarrow, v_0$
    • Replies: 12
    • Views: 1,251
    January 17th, 2016, 21:00 Go to last post
  11. What does the curve represent?

    Started by evinda, November 9th, 2015 15:31
    3 Pages
    1 2 3
    $gamma$, $mathbbr^2$, closed, cos, curve
    • Replies: 29
    • Views: 2,677
    January 17th, 2016, 18:49 Go to last post
  12. [SOLVED] Smooth map

    Started by mathmari, January 14th, 2016 07:30
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,494
    January 17th, 2016, 16:34 Go to last post
  13. Repametrization map

    Started by mathmari, January 17th, 2016 13:05
    endpmatrix=beginpmatrix, frac1w, map, tildef, wondering
    • Replies: 0
    • Views: 343
    January 17th, 2016, 13:05 Go to last post
  14. Parallel curve

    Started by mathmari, October 10th, 2015 20:48
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,615
    January 17th, 2016, 10:48 Go to last post
  15. Intersection of a surface with a plane

    Started by mathmari, January 16th, 2016 17:26
    • Replies: 0
    • Views: 393
    January 16th, 2016, 17:26 Go to last post
  16. How do we get the terms E, F, G, L, M, N ?

    Started by mathmari, January 9th, 2016 17:02
    • Replies: 2
    • Views: 547
    January 16th, 2016, 11:16 Go to last post
  17. Taylor expansion - How can we deduce that?

    Started by mathmari, January 15th, 2016 15:05
    • Replies: 2
    • Views: 475
    January 16th, 2016, 10:39 Go to last post
  18. Which is the set?

    Started by mathmari, January 14th, 2016 21:09
    $f$, $s$, diffeomorphism, half-plane, local
    • Replies: 0
    • Views: 428
    January 14th, 2016, 21:09 Go to last post
  19. Transition map

    Started by mathmari, January 8th, 2016 17:54
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 2,806
    January 14th, 2016, 15:19 Go to last post
  20. Distance between the geodesic and the z-axis

    Started by mathmari, January 11th, 2016 20:03
    $$dot, $gamma$, $z$-axis, distance, geodesic
    • Replies: 0
    • Views: 386
    January 11th, 2016, 20:03 Go to last post
  21. [SOLVED] Principal curvatures

    Started by mathmari, January 11th, 2016 15:38
    $sigma$, $tildesigma$, curvatures, principal, show
    • Replies: 8
    • Views: 633
    January 11th, 2016, 19:20 Go to last post
  22. Hyperboloid of one sheet

    Started by mathmari, January 11th, 2016 18:39
    family, hyperboloid, lines, surface, theta
    • Replies: 0
    • Views: 578
    January 11th, 2016, 18:39 Go to last post
  23. [SOLVED] Reparametrization

    Started by mathmari, January 2nd, 2016 12:11
    • Replies: 8
    • Views: 742
    January 11th, 2016, 17:36 Go to last post
  24. [SOLVED] Line of striction

    Started by mathmari, January 4th, 2016 13:52
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 1,720
    January 11th, 2016, 15:39 Go to last post
  25. [SOLVED] Open subset of a surface

    Started by mathmari, December 19th, 2015 20:27
    2 Pages
    1 2
    $mathbbr^3$, $s$, open, subset, surface
    • Replies: 13
    • Views: 1,804
    January 10th, 2016, 19:05 Go to last post
  26. Structure of surface

    Started by mathmari, December 17th, 2015 21:09
    3 Pages
    1 2 3
    $s^2$, give, surface, u^2, v^2
    • Replies: 29
    • Views: 2,113
    January 8th, 2016, 13:43 Go to last post
  27. Möbius band

    Started by mathmari, January 8th, 2016 10:18
    1-tsin, band, möbius, tcos, theta
    • Replies: 0
    • Views: 388
    January 8th, 2016, 10:18 Go to last post
  28. Equivalent equations

    Started by mathmari, January 7th, 2016 20:06
    • Replies: 0
    • Views: 393
    January 7th, 2016, 20:06 Go to last post
  29. Umbilics on the ellipsoid

    Started by mathmari, January 7th, 2016 13:08
    distinct, left, ucos^2, umbilics, vq^2r^2cos^2
    • Replies: 0
    • Views: 416
    January 7th, 2016, 13:08 Go to last post
  30. Area

    Started by mathmari, December 29th, 2015 11:44
    • Replies: 4
    • Views: 706
    January 6th, 2016, 08:00 Go to last post
  31. [SOLVED] Spherical circle - Circle

    Started by mathmari, January 2nd, 2016 19:56
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 1,723
    January 5th, 2016, 20:32 Go to last post

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Top 79 Thread Starters For "Topology and Advanced Geometry"

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5evinda3.414Normals to plane curves
6dwsmith2.711connect subsets
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8bw0young0math1.77about quotioent topology and T...
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11bugatti790.73Obtaining the surface normal o...
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12Ubistvo0.52Complete metric space
12Arnold0.52Hyperbolic geometry - isometry
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12Joppy0.52Square torus, again
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