Volume XXXV: 2025

Issue 1  (July 2025)

Editors Page 04
On the Conway and Soifer Schemas and Methods
for Covering Non-Equilateral Triangles		by John M. Boyer05
Multiple Crossings of Pseudo Diagonalsby Heiko Harborth and Christian Thürman18
Similarity of a triangle and its derived triangleby Zsolt Lengvarszky, Rick Mabry and Irina Ilioaea29

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Issue 2  (October 2025)

Editors Page 44
Methods for Always Covering Large Triangles with
Similar Unit Triangles		by John M. Boyer45
What would Einstein Tell Trump?by Alexander Soifer58
Some full Fermat-Frechet multitrees in the three dimensional
Euclidean Space		by Anastasios N. Zachos63

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Issue 3  (January 2026)

Editors Page 80
On Functions from R into R that Preserve SpecifiedDistancesby Joseph Briggs, Elisabeth Davis, Katherine Guo, Peter Johnson, and Andrew Schmidt81
Saturated Vertex-to-Vertex Packingsby Alewyn P. Burger, Heiko Harborth, Meinhard Möller, and Christian Thürmann85
Touching Stringsby Jacob Fox and János Pach96
Frankl's Conjecture Holds for Topologies on Finite Setsby Peter Johnson and Andrew Schmidt100
A Tetrahedron-Free 6-Chromatic Unit-Distance Graphin Three-Dimensional Spaceby Asger Haugstrup102
A 5-Chromatic, Triangle-Free Unit-Distance Graph in R3 with 61 verticesby Aubrey de Grey111

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Issue 4  (March 2026)

 

Editors Page 124
New Essays  
Counting Isomorphism Classes of Spanning Trees of 
Complete Bipartite Graphs		by Peter Johnson, and Shayne Hochumson126
A Valence-Based Structural Framework for k-Isohedral
Tilings of Convex Pentagon		by Shintaro Sakai131
Conquest of Marsby Alexander Soifer145
Note about a Gap in Coloring the Planeby Vitaly Voloshin155

 

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