| Martchenkov-{ | hide text |
| 240411-110151: | Comparing upper and lower Wirtinger. |
| 240319-132314: | Comparing Wirtinger and Dehn. |
| 240312-131731: | Back to equivalence of presentations. |
| 240226-151054: | The extra row. |
| 240124-115045: | The fundamental forms of planar curves (2). |
| 240117-154443: | The fundamental forms of planar curves. |
| 231109-152459: | More on $H_1(\tilde{X})$ (2). |
| 231102-145504: | More on $H_1(\tilde{X})$. |
| 231025-144256: | $H_1(\tilde{X})$ and $H_1(\tilde{X},\tilde{p})$. |
| 231011-161249: | The relation between the upper and the lower Wirtinger presentations. |
| 231005-145332: | The Abelianization of Dehn. |
| 230919-171324: | Invariance of Alexander formulas. |
| 230601-123143: | The Dehn presentation and the Alexander polynomial (2). |
| 230425-142328: | The Dehn presentation and the Alexander polynomial. |
| 230223-125050: | Matrices and quadratics. |
| } |