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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. definition of quotient topology

    Started by Muon, May 21st, 2017 10:59
    $bigcup, $tau_y=leftusubseteq, =leftbigcup, ybigcup, [a]in
    • Replies: 1
    • Views: 99
    May 21st, 2017, 12:25 Go to last post
  3. when is a finite topological space path-connected?

    Started by Muon, May 15th, 2017 20:36
    finite, map, path-connected, space, topological
    • Replies: 1
    • Views: 112
    May 16th, 2017, 00:17 Go to last post
  4. first countable spaces

    Started by hksuraj, February 12th, 2017 07:12
    countable, delta, prove, set, set?how
    • Replies: 2
    • Views: 225
    March 23rd, 2017, 01:50 Go to last post
  5. Closure of an Set

    Started by Julio, January 31st, 2017 18:21
    closure, text, ucap, uintau, xin
    • Replies: 3
    • Views: 206
    February 1st, 2017, 17:25 Go to last post
  6. The Join of Two Circles Is the Three Sphere

    Started by caffeinemachine, October 16th, 2016 04:16
    • Replies: 5
    • Views: 770
    December 24th, 2016, 05:38 Go to last post
  7. Comparison of Topologies:basic

    Started by Arenholt, December 21st, 2016 01:20
    $tau_2=the, complement, topologies, topology, topology$
    • Replies: 8
    • Views: 319
    December 22nd, 2016, 05:32 Go to last post
  8. The Long Exact Sequence of a Certain Pair

    Started by caffeinemachine, December 17th, 2016 07:36
    exact, itimes, partial, rrightarrow, sequence
    • Replies: 0
    • Views: 137
    December 17th, 2016, 07:36 Go to last post
  9. Topological Manifolds - Charts on Real Projective Spaces

    Started by Peter, February 21st, 2016 23:06
    domain, map, phi_i, question, read
    • Replies: 1
    • Views: 448
    December 12th, 2016, 13:30 Go to last post
  10. about quotioent topology and T2.

    Started by bw0young0math, August 24th, 2016 11:29
    function, fx=0x∈a, fx=xx∈b, topology, u→b∪0
    • Replies: 0
    • Views: 362
    August 24th, 2016, 11:29 Go to last post
  11. about one-point compactification

    Started by bw0young0math, August 24th, 2016 11:19
    1∪2, a=[0, compactification, one-point, problem
    • Replies: 0
    • Views: 183
    August 24th, 2016, 11:19 Go to last post
  12. [SOLVED] Hello, I have a problem about differential geometry.

    Started by bw0young0math, August 16th, 2016 01:12
    find, normal curvature, principal, principal vector, vector
    • Replies: 2
    • Views: 341
    August 22nd, 2016, 22:50 Go to last post
  13. Normals to plane curves

    Started by evinda, April 14th, 2016 15:19
    $nt, cdot, ft+, gt$, rt=-gt
    • Replies: 6
    • Views: 517
    April 14th, 2016, 18:55 Go to last post
  14. Curvature of parabola

    Started by evinda, April 14th, 2016 13:01
    2at, curvature, fracdtds=frac14a^2, parabola, t^2+1
    • Replies: 2
    • Views: 600
    April 14th, 2016, 15:14 Go to last post
  15. [SOLVED] Circle problem

    Started by flashback, April 7th, 2016 10:02
    circles, diameter, line, passes, smaller
    • Replies: 0
    • Views: 570
    April 7th, 2016, 10:02 Go to last post
  16. Closed set relative

    Started by Julio, April 3rd, 2016 19:41
    $atimes, closed, question, relative, set
    • Replies: 1
    • Views: 411
    April 4th, 2016, 12:51 Go to last post
  17. Directional Derivatives and Derivations - Tangent Space

    Started by Peter, February 23rd, 2016 22:59
    directional, d_v|_a, lees, tangent, v_a
    • Replies: 1
    • Views: 549
    March 26th, 2016, 04:44 Go to last post
  18. Semi-axes

    Started by evinda, March 16th, 2016 16:21
    paraboloid, revolution, semi-axes, set
    • Replies: 1
    • Views: 397
    March 17th, 2016, 10:12 Go to last post
  19. Coordinates of Pushforwards ...

    Started by Peter, February 29th, 2016 03:32
    coordinates, lees, pushforwards, tangent, vectors
    • Replies: 1
    • Views: 367
    March 1st, 2016, 00:54 Go to last post
  20. Pushforwards in local coordinates

    Started by Peter, February 29th, 2016 00:56
    conversation, frac, lees, partial, pushforwards
    • Replies: 1
    • Views: 362
    February 29th, 2016, 01:59 Go to last post
    • Replies: 4
    • Views: 561
    February 29th, 2016, 01:09 Go to last post
    • Replies: 2
    • Views: 411
    February 23rd, 2016, 22:32 Go to last post
  21. Charts on Topological Manifolds - Simple Notational Issue

    Started by Peter, February 20th, 2016 22:33
    1.1.3, definition, issue, m^m, relationship
    • Replies: 2
    • Views: 530
    February 20th, 2016, 23:33 Go to last post
    • Replies: 0
    • Views: 445
    February 19th, 2016, 03:16 Go to last post

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