Reposted by In 4D
David Gabai, David T. Gay, Daniel Hartman: Pseudo-Isotopy and Diffeomorphisms of the 4-Sphere I: Loops of Spheres https://arxiv.org/abs/2505.12088 https://arxiv.org/pdf/2505.12088 https://arxiv.org/html/2505.12088
May 20, 2025 at 6:04 AM
David Gabai, David T. Gay, Daniel Hartman: Pseudo-Isotopy and Diffeomorphisms of the 4-Sphere I: Loops of Spheres https://arxiv.org/abs/2505.12088 https://arxiv.org/pdf/2505.12088 https://arxiv.org/html/2505.12088
Reposted by In 4D
How to 'See' the 4th Dimension with Topology
YouTube video by Quanta Magazine
www.youtube.com
May 17, 2025 at 12:06 AM
Reposted by In 4D
Alison Tatsuoka: Splitting spheres for unlinked $S^2$'s in $S^4$ https://arxiv.org/abs/2502.01817 https://arxiv.org/pdf/2502.01817 https://arxiv.org/html/2502.01817
February 5, 2025 at 6:12 AM
Alison Tatsuoka: Splitting spheres for unlinked $S^2$'s in $S^4$ https://arxiv.org/abs/2502.01817 https://arxiv.org/pdf/2502.01817 https://arxiv.org/html/2502.01817
Reposted by In 4D
Ka Man Yim: Inferring Ambient Cycles of Point Samples on Manifolds with Universal Coverings https://arxiv.org/abs/2502.02400 https://arxiv.org/pdf/2502.02400 https://arxiv.org/html/2502.02400
February 5, 2025 at 6:11 AM
Ka Man Yim: Inferring Ambient Cycles of Point Samples on Manifolds with Universal Coverings https://arxiv.org/abs/2502.02400 https://arxiv.org/pdf/2502.02400 https://arxiv.org/html/2502.02400
Reposted by In 4D
Jeffrey Meier, Evan Scott: Equivariant trisections for group actions on four-manifolds https://arxiv.org/abs/2501.17999 https://arxiv.org/pdf/2501.17999 https://arxiv.org/html/2501.17999
January 31, 2025 at 6:12 AM
Jeffrey Meier, Evan Scott: Equivariant trisections for group actions on four-manifolds https://arxiv.org/abs/2501.17999 https://arxiv.org/pdf/2501.17999 https://arxiv.org/html/2501.17999
Reposted by In 4D
Dave Auckly, Daniel Ruberman: Exotic families of embeddings https://arxiv.org/abs/2501.12673 https://arxiv.org/pdf/2501.12673 https://arxiv.org/html/2501.12673
January 23, 2025 at 6:12 AM
Dave Auckly, Daniel Ruberman: Exotic families of embeddings https://arxiv.org/abs/2501.12673 https://arxiv.org/pdf/2501.12673 https://arxiv.org/html/2501.12673
Reposted by In 4D
Jeffrey Meier, Evan Scott: An equivariant Laudenbach-Po\'enaru theorem https://arxiv.org/abs/2501.10524 https://arxiv.org/pdf/2501.10524 https://arxiv.org/html/2501.10524
January 22, 2025 at 1:06 PM
Jeffrey Meier, Evan Scott: An equivariant Laudenbach-Po\'enaru theorem https://arxiv.org/abs/2501.10524 https://arxiv.org/pdf/2501.10524 https://arxiv.org/html/2501.10524
Reposted by In 4D
Dave Auckly, Daniel Ruberman: Families of diffeomorphisms, embeddings, and positive scalar curvature metrics via Seiberg-Witten theory https://arxiv.org/abs/2501.11892 https://arxiv.org/pdf/2501.11892 https://arxiv.org/html/2501.11892
January 22, 2025 at 1:06 PM
Dave Auckly, Daniel Ruberman: Families of diffeomorphisms, embeddings, and positive scalar curvature metrics via Seiberg-Witten theory https://arxiv.org/abs/2501.11892 https://arxiv.org/pdf/2501.11892 https://arxiv.org/html/2501.11892
Just realized that I was the first to follow the geometric topology bot. Are there any more low-dim topologist here?
🧮
@mathgt-bot.bsky.social
🧮
@mathgt-bot.bsky.social
January 22, 2025 at 7:43 AM
Just realized that I was the first to follow the geometric topology bot. Are there any more low-dim topologist here?
🧮
@mathgt-bot.bsky.social
🧮
@mathgt-bot.bsky.social
🧮 testing... for science.
January 21, 2025 at 11:40 PM
🧮 testing... for science.
Reposted by In 4D
Dahyana Farias, Eduardo Fern\'andez, Francisco Presas, Guillermo S\'anchez-Arellano: Convex disks with Legendrian boundary in overtwisted contact 3-manifolds https://arxiv.org/abs/2501.09232 https://arxiv.org/pdf/2501.09232 https://arxiv.org/html/2501.09232
January 17, 2025 at 6:12 AM
Dahyana Farias, Eduardo Fern\'andez, Francisco Presas, Guillermo S\'anchez-Arellano: Convex disks with Legendrian boundary in overtwisted contact 3-manifolds https://arxiv.org/abs/2501.09232 https://arxiv.org/pdf/2501.09232 https://arxiv.org/html/2501.09232
Hello Bluesky,
I'm new to the platform. So where do all the topologists/math people hangout?
I'm new to the platform. So where do all the topologists/math people hangout?
December 4, 2024 at 3:30 AM
Hello Bluesky,
I'm new to the platform. So where do all the topologists/math people hangout?
I'm new to the platform. So where do all the topologists/math people hangout?