Sangaku Journal of Mathematics - Volumes 2017 - 2023

Volume 7 (2023)

Hiroshi Okumura, A rare sangaku problem involving three congruent circles, pp.1-8.

Hiroshi Okumura, Problems 2023-1, pp.9-12.

Paris Pamfilos, Note on a sangaku like construction of X(55), pp. 13-15.

Vishwesh Ravi Shrimali, Solution for Problems 2 and 3 of Problems 2023-1, pp. 16-19.

Kousik Sett, Solution for Problems 2 and 3 of Problems 2023-1 by Vishwesh Ravi Shrimali (ERRATA), p. 20.

Ercole Suppa and Marian Cucoanes, Solution of Problems 2023-1-6, pp. 21-28.

Hiroshi Okumura and Kousik Sett, The arbelos in Wasan geometry: the Aida arbelos and Problem 2023-1-5, pp. 29-31.

Hiroshi Okumura, A configuration arising from Problem 2023-1-1, pp. 32-34.

Volume 6 (2022)

Hiroshi Okumura, A note on a generalization of a five circle problem, pp.1-2.

Hiroshi Okumura, A note on a generalization of a five circle problem: Part 2, pp.3-5.

Hiroshi Okumura, A note on a generalization of a five circle problem: Part 3, pp.6-8.

Li Ting Hon Stanford, A configuration involving a square and two equilateral triangles, pp.9-12.

Hiroshi Okumura, Some generalizations of five circle problems, pp.13-18.

Hiroshi Okumura, A note on circles touching two circles in a Pappus chain, pp.19-22.

Hiroshi Okumura, A note on circles touching two circles in a Pappus chain: Part 2, pp.23-25.

Kousik Sett, A note on a chain of contact circles inside a circular segment, pp.26-30.

Kousik Sett, An alternative proof of the Japanese theorem, pp.31-33.

Li Ting Hon Stanford, A simple method to explore the relationships between six areas, pp.34-36.

Hiroshi Okumura, A note on circles touching two circles in a Pappus chain: Part 3, pp.37-40.

J. Marshall Unger, A response to an open question of Rabinowitz, pp.41-44.

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