Mathematics Stack Exchange

6 questions · 5 answers · Community profile

All communities · Selected contributions by subject

Answer titles are the titles of the questions answered; each answer link goes to my specific contribution. Dates are original posting dates in UTC.

2011

• Does triality survive in product Lie groups?2011-09-20 · My question

2015

• Are $T^2/Z_2$ orbifolds just ironed spheres?2015-08-02 · My question
• Division by zero2015-08-16 · My answer
• Better than random2015-08-19 · My answer

2017

• Noncommutative (quantum, deformed, ...) sphere interpolating between $S^n$ and $S^{n-2}$2017-03-03 · My question

2023

• Necessary and sufficient conditions that a cubic equation has three positive real roots2023-06-07 · My answer
• More general traceless normalized matrix2023-07-11 · My question
• Construct the tangent to a point on the parabola2023-09-30 · My answer
• Construction of normals to parabola across external point2023-10-02 · My question

2024

• How to complete this proof of Newtonian gravity from areal velocity?2024-09-25 · My question
• How to complete this proof of Newtonian gravity from areal velocity?2024-09-27 · My answer