k-Hamming Distance Hierarchy. June 2024.

Pen: Platinum 3776 Century (UEF nib) for black, Lamy 2000 (M nib) for blue.

Ink: Platinum carbon black, Iroshizuku Shin-Kai.

Paper: Canson Sketch 120gsm, A4.

No Complete Problem: STOC 2024 slides June 2024.

Pen: Platinum 3776 Century (UEF nib) for black, various others for colors.

Ink: Platinum carbon black, Iroshizuku Ama-Iro, Fuyu-Gaki, and Shin-Kai.

Paper: Rhodia R dot grid, A4 and Canson Sketch 120gsm, A4.

Hyperefficient Communication: Simons Fellow slides June 2024.

Pen: Platinum 3776 Century (UEF nib) for black, Lamy 2000 (M nib) for blue.

Ink: Platinum carbon black, Iroshizuku Shin-Kai.

Paper: Rhodia R dot grid, A4 and Canson Sketch 120gsm, A4.

Testing Convex Sets: ITCS 2024 Slides. Jan. 2024.

Pen: Platinum 3776 Century (UEF nib) for black, various others for colors.

Ink: Platinum carbon black, Diamine wild strawberry, Diamine ancient copper, Iroshizuku ama-iro.

Paper: Mnemosyne Dot-Grid, A4.

Confused Collector: ITCS 2024 Slides. Jan. 2024.

Pen: Platinum 3776 Century (UEF nib) for black, various others for colors.

Ink: Platinum carbon black, Diamine wild strawberry, Diamine ancient copper, Iroshizuku ama-iro.

Paper: Mnemosyne Dot-Grid, A4.

SODA 2024 Slides. Jan. 2024.

Pen: Platinum 3776 Century (UEF nib) for black, various others for colors.

Ink: Platinum carbon black, Diamine wild strawberry, Diamine ancient copper, Diamine aurora borealis, Iroshizuku ama-iro.

Paper: Midori MD, A4.

My slides for the paper Randomized Communication and Implicit Representations for Matrices and Graphs of Small Sign-Rank, coauthored with Viktor Zamaraev and presented at SODA 2024.

Compass Rose. Dec. 2023.

Medium: Burnt basswood.

My first attempt at pyrography (woodburning).

Tengu. Dec. 2023.

Pen: Pilot Custom 823 (F nib).

Ink: Diamine Aurora Borealis.

Paper: Canson bristol, A3.

A tengu is a Japanese forest spirit. This drawing is based on a photo I took in Japan (of a statue, not a real tengu).

Self portrait as a human. Nov. 2023.

Pen: Sailor Hocoro (fude nib).

Ink: Iroshizuku Ama-Iro.

Paper: G. Lalo Vélin Pur Coton, A4.

I made this for this website.

Bee. Oct. 2023.

Pen: Sailor Hocoro (fude nib), Pilot Parallel.

Ink: ...

Paper: Canson bristol, A4.

If you want to see tons of great macro photography of bees, check out the United States Geological Survey bee inventory!

Jellyfish sketch. August 2023.

Pen: Platinum #3776 Century (UEF nib).

Ink: Pilot black.

Paper: Rhodia, A4.

Gifted to my friend Julie Messier.

Distribution Testing & Testing vs Learning. August 2023.

Pen: Lamy Joy (stub nib), Platinum #3776 Century (UEF nib), brush.

Ink: Pilot Black, Diamine Ancient Copper, Diamine Monboddo’s Hat, Iroshizuku Shin-Kai.

Paper: Bristol, 1m x 0.7m.

I presented this poster at WoLA 2023 in MIT.

Click here to see it bigger.

Coral reef. May 2023.

Pen: The Good Blue R615 (flex nib).

Ink: Pilot black.

Paper: Canson bristol, A4.

Number-In-Hand Communication. May 2023.

Pen: The Good Blue R615 (flex nib), Lamy Joy (stub nib).

Ink: Pilot Black, Diamine Ancient Copper (or maybe Iroshizuku Fuyu-Gaki?).

Paper: Canson bristol, A4.

Cartoon diagram of the Number-In-Hand (NIH) communication model. “Commissioned” by Lianna Hambardzumyan for her presentation at a few workshops.

Feel free to use in your own presentations! Click the image to see downloads.

Number-On-Forehead Communication. May 2023.

Pen: The Good Blue R615 (flex nib), Lamy Joy (stub nib).

Ink: Pilot Black, Diamine Ancient Copper (or maybe Iroshizuku Fuyu-Gaki?).

Paper: Canson bristol, A4.

Cartoon diagram of the Number-On-Forehead (NOF) communication model. “Commissioned” by Lianna Hambardzumyan for her presentation at a few workshops.

Feel free to use in your own presentations! Click the image to see downloads.

Wrinkled old internet man. April 2023.

Pen: Pilot Custom 823.

Ink: Iroshizuku Ama-Iro.

Paper: Moleskine, A4.

This was supposed to be a quick warm-up sketch using a random internet image, but it got away from me.

Koi fish sketch. March 2023.

Pen: Pilot Custom 823.

Ink: Iroshizuku Fuyu-Gaki, Iroshizuku Shin-Kai.

Paper: Moleskine, A4.

Gifted to my friend Renato Ferreira Pinto Jr.

Betta fish sketch. March 2023.

Pen: Pilot Custom 823.

Ink: Iroshizuku Fuyu-Gaki.

Paper: Moleskine, A4.

Self portrait. Feb. 2023.

Pen: Visconti Van Gogh.

Ink: Iroshizuku Ama-Iro.

Paper: Moleskine, A4.