All blogs / Math

Posts

1,865 from 20 Jul 2005 to 27 Oct 2026

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weekly (44 in the last year)

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personal blog

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https://11011110.github.io/blog/feed.xml

Latest

October 2026

1. 27 OctCongratulations, Dr. Liu!
2. 15 OctLinkage

September 2026

1. 30 SepLinkage
2. 15 SepLinkage
3. 14 SepPeriodic coloring of infinite planar graphs

August 2026

1. 31 AugLinkage with two research problems
2. 17 AugFractional rings of tangent spheres
3. 15 AugLinkage
4. 2 AugNon-coplanar unit distances

July 2026

1. 31 JulLinkage
2. 19 JulInteger complexity and cographs
3. 15 JulLinkage
4. 7 JulPacking Latin squares into sudoku puzzles

June 2026

1. 30 JunBeachhenge linkage
2. 27 JunA counterexample for Steiner triangulation
3. 23 JunCeramic orthogonal polyhedra
4. 17 JunImpossible patterns of sphere tangencies
5. 15 JunLinkage
6. 13 JunCongratulations, Dr. Sridhar!

May 2026

1. 31 MayLinkage
2. 27 MayCongratulations, Dr. Patris!
3. 15 MayLinkage
4. 14 MayThe degree of Fibonacci heaps

April 2026

1. 30 AprLinkage
2. 28 AprCubic salespeople revisited
3. 15 AprLinkage
4. 1 AprH-trees are not trees

March 2026

1. 31 MarLinkage
2. 15 MarLinkage with plum blossoms
3. 1 MarMaking accessible LaTeX talk slides with ltx-talk

February 2026

1. 28 FebLinkage
2. 15 FebLinkage

January 2026

1. 31 JanLinkage with bulging mussels
2. 22 JanCongratulations, Dr. Gangam!
3. 15 JanLinkage
4. 5 JanInvertible Bloom antimatroids

December 2025

1. 31 DecLinkage
2. 15 DecWinter break linkage
3. 13 DecRegular link-irregular graphs
4. 3 DecCongratulations to three new doctorates!

November 2025

1. 30 NovLinkage
2. 15 NovLinkage
3. 8 NovHanoi graphs redrawn
4. 1 NovEntropy in algorithm analysis

October 2025

1. 31 OctLinkage
2. 25 OctThe hyperbolic spiral as a trisectrix
3. 21 OctHamiltonian-paired graphs
4. 15 OctLinkage

September 2025

1. 30 SepLinkage with feijoas
2. 27 SepNorrköpingsfallen
3. 15 SepLinkage
4. 14 SepPlanarizing matchings
5. 4 SepThe metro map metaphor for treewidth

August 2025

1. 31 AugLinkage
2. 27 AugFive-arc fractal
3. 25 AugEnclosures that minimize the sum of area and perimeter
4. 15 AugLinkage from Toronto

July 2025

1. 31 JulLinkage from Montreal
2. 20 JulTwenty years of blogging
3. 15 JulLinkage
4. 7 JulReady lists
5. 1 JulGeometric street art in Kanazawa

June 2025

1. 30 JunLinkage
2. 15 JunLinkage with pelicans
3. 8 JunTwo recent preprints

May 2025

1. 31 MayLinkage
2. 20 MayBandwidth vs breadth-first search
3. 15 MayLinkage
4. 5 MayTurnstile majority

April 2025

1. 30 AprWhy I linkage
2. 20 AprWhich infinite graphs can DFS explore?
3. 15 AprLinkage
4. 10 AprCongratulations, Dr. Zheng!

March 2025

1. 31 MarLinkage
2. 22 MarThe ancient Greek mathematics of distorted airplane propeller photos
3. 15 MarLinkage

February 2025

1. 28 FebLinkage
2. 24 FebBlooming caterpillars
3. 20 FebVisualizing the Henson graph
4. 15 FebLinkage with incoming gloom

January 2025

1. 31 JanLinkage
2. 16 JanTwenty questions with a random liar
3. 15 JanLinkage
4. 11 JanLinus Pauling Commemorative Ceramic Mural

December 2024

1. 31 DecEnd-of-year linkage
2. 19 DecPseudonymity in academic publishing
3. 15 DecLinkage
4. 1 DecFast Schulze voting using quickselect

November 2024

1. 30 NovLinkage
2. 15 NovLinkage
3. 13 NovCongratulations, Dr. Tröbst!
4. 3 NovSome highlights from FOCS

October 2024

1. 31 OctHalloween linkage
2. 28 Oct2-adic numbering for binary tilings
3. 17 OctSplines for graph drawing theory
4. 15 OctLinkage
5. 10 OctComputational complexities of folding
6. 6 OctA half-flipped binary tiling

September 2024

1. 30 SepLinkage for the start of another academic year
2. 25 SepLong but non-crossing paths and cycles
3. 23 SepCongratulations, Dr. Lunel!
4. 15 SepLinkage

August 2024

1. 31 AugLinkage
2. 18 AugFlaps and flips
3. 15 AugLinkage with a fold-and-cut hat
4. 7 AugRange voting considered harmful
5. 3 AugCrash-free path planning

July 2024

1. 31 JulLinkage
2. 15 JulLinkage from Australia
3. 9 JulCeltix is NP-complete

June 2024

1. 30 JunLinkage
2. 15 JunLinkage
3. 4 JunTeachable suffix tree construction
4. 3 JunCongratulations, Dr. Khodabandeh!

May 2024

1. 31 MayLinkage
2. 22 MayCongratulations, Dr. Ozel!
3. 15 MayLinkage
4. 12 MayGray parking?
5. 8 MayRandom perfection

April 2024

1. 30 AprLinkage
2. 15 AprLinkage
3. 12 AprMendocino, sakura, and my father

March 2024

1. 31 MarPre-April-fools linkage
2. 28 MarOne-face torus
3. 16 MarTriforce toroids
4. 15 MarLinkage for mid-March
5. 6 MarSpanners that don't change much

February 2024

1. 29 FebLinkage for leap day
2. 15 FebLinkage

January 2024

1. 31 JanLinkage
2. 29 JanVoting with bitvector sums
3. 22 JanThe equilateral dimension of Riemannian manifolds
4. 15 JanLinkage
5. 14 JanInteger distances in floppy metric spaces

December 2023

1. 31 DecEnd-of-year linkage
2. 15 DecLinkage
3. 12 DecCorrecting Harborth on rational distances

November 2023

1. 30 NovLinkage
2. 20 NovSome pyramidology
3. 19 NovAperiodic pinwheel scheduling using Beatty sequences
4. 15 NovMid-November Linkage

October 2023

1. 31 OctLinkage for Halloween
2. 19 OctThe quadtree-balancing antimatroid
3. 15 OctLinkage

September 2023

1. 30 SepLinkage for the start of the academic year
2. 25 SepReport from Graph Drawing
3. 15 SepLinkage

August 2023

1. 31 AugLinkage
2. 27 AugA hyperbolic surface in Tokyo
3. 15 AugLinkage

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