Mike Henderson

Mastodon @mhender@mathstodon.xyz

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Account age

0 yrs

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Known for

This is the kind of stuff I do, If you have an equation F(u)-0 with k fewer equtions than unknowns, and know one solution, how do you compute other solutions "connected" to it.

3 views This is the kind of stuff I do, If you have an equation F(u)-0 with k fewer equtions than unknowns, and know one solution, how do you compute other solutions "connected" to it. $Today's blooper, maybe? Trying to understand the splitting that gives the flow in the graph transform. The black is a 2d flow with a stable fixed point at the origin and an unstable invariant circle. The red is, um, something that's supposed to be the associated Newton flow. \[ u'=-F_u^{-1} F \]$ 1 views Today's blooper, maybe? Trying to understand the splitting that gives the flow in the graph transform. The black is a 2d flow with a stable fixed point at the origin and an unstable invariant circle. The red is, um, something that's supposed to be the associated Newton flow. \[ u'=-F_u^{-1} F \]

This is the image of a circle forward and backward under a flow. It is a "suspended" non-autonomous flow, and the white lines are invariant. he flow curls the surface up around the invariant lines. Forward time is to the left.

1 views This is the image of a circle forward and backward under a flow. It is a "suspended" non-autonomous flow, and the white lines are invariant. he flow curls the surface up around the invariant lines. Forward time is to the left.

This is an animation of the computation of a sphere. Usually I work in higher dimensional spaces, for example where each point on the surface is a solution of a two point boundary value problem.

1 views This is an animation of the computation of a sphere. Usually I work in higher dimensional spaces, for example where each point on the surface is a solution of a two point boundary value problem.

📊 Post engagement

Avg engagement / post

33.3%

Engagement vs followers

May 2026

On Mastodon since

🔥 Top post: This is the kind of stuff I do, If you have an equation F(u)-0 w · 3 likes + reposts

📊 Activity & format

Posting cadence

0.95 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly images

Recent: 1 text · 5 image · 1 video.

Follower / following

0.8×

Follows 4 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗

🔥 Top post This is the kind of stuff I do, If you have an equation F(u)-0 with k fewer equtions than unknowns, and know one solution, how do you compute other solutions "connected" to it. ★ 3

Today's blooper, maybe? Trying to understand the splitting that gives the flow in the graph transform. The black is a 2d flow with a stable fixed point at the origin and an unstable invariant circle. The red is, um, something that's suppo… ★ 1

Aha! Not just me. This is from the intro to Robert Gilmore's "Lie Groups, Lie Algebras, and Some of Their Applications". We're conditioned to not admit we don't know something. I feel this is part of Appl Math's job responsibility. -- I'l… OK, there is MathJax. \[ \left[ \begin{array} xx'\\y'\\z' \end{array}\right] = \left[ \begin{array} .2 z \sin{2\pi x}\\.2 z \sin{2\pi y}\\1 \end{array}\right] \] ★ 1

This is the image of a circle forward and backward under a flow. It is a "suspended" non-autonomous flow, and the white lines are invariant. he flow curls the surface up around the invariant lines. Forward time is to the left. ★ 1

These are surfaces where each point is an "axially clamped" twisted rod. Something like a garden hose. As you twist the ends it curls up. The curves are special configurations, like planar rings. There's a classification in terms of windin…

▶ This is an animation of the computation of a sphere. Usually I work in higher dimensional spaces, for example where each point on the surface is a solution of a two point boundary value problem. ★ 1

🐘 Community & instance

Home server

mathstodon.xyz

Their home server on the fediverse — the instance a creator picks signals the community they belong to.

On Mastodon since

May 2026

An established account with real history on the platform.

💡 Facts

🗓️Joined Mastodon in 2026.

👁️Averages 1 views per post.

📤Posts about 1× per week.

🕵️ Fake follower check

Estimated

60/100

Fair Credibility score

82%

Real Real audience

Low Fake-follower risk

Medium Data confidence

Est. 82% real, active audience · Low fake-follower risk.
Strong engagement (~0.3× of followers engage each post) — an active, real audience.
Very new account (under 3 months) — higher throwaway/bot risk.

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

I'm an Applied Mathematician, now retired from IBM Research. I work on numerical methods for nonlinear dynamics, especially continuation methods for manifolds. I have a PhD from Caltech and a BS from Penn State.

📸 Gallery

$Today's blooper, maybe? Trying to understand the splitting that gives the flow in the graph transform. The black is a 2d flow with a stable fixed point at the origin and an unstable invariant circle. The red is, um, something that's supposed to be the associated Newton flow. \[ u'=-F_u^{-1} F \]$

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

MacamYa 18%

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てつどうふぁん/てっちゃん 17%

Dr.K(Kohji Miyazaki) 16%

クリス 12%

結城永人 11%

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Mike Henderson

Make a deal with Mike Henderson

Known for

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

About

📸 Gallery

🔀 Audience overlap

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