| Conference Activities & Talks |
| No. | Ｔitle, URL, Presentation date, Vol( No), Start Page- End Page, Publication date
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| 1 | The Lemmens-Seidel conjecture for base size 5, , Dec. 5, 2022, , 1- 1, Dec. 5, 2022
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| 2 | The Lemmens-Seidel conjecture for base size 5, , Oct. 25, 2022, , 1- 1, Oct. 25, 2022
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| 3 | Constellations in prime elements of number fields, , Oct. 14, 2022, , 1- 1, Oct. 14, 2022
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| 4 | Equiangular lines with common angle arccos(1/3), , Sep. 14, 2022, , １- １, Sep. 14, 2022
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| 5 | A quantum searching model finding one of the edges of a subgraph in a complete graph, , Aug. 19, 2022, , 6- 6, Aug. 19, 2022
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| 6 | The numbers of some sets of equiangular lines in dimension 7, , Feb. 17, 2022, , 1- 1, Feb. 17, 2021
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| 7 | On saturated equiangular lines, , Jul. 3, 2021, , ４- ４, Jul. 3, 2021
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| 8 | Maximality of Seidel matrices and switching roots of graphs, , Jun. 14, 2021, , 12- 22, Feb. 23, 2021
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| 9 | Constellations in prime elements of number fields, , Jun. 1, 2021, , 10- 10, Jun. 1, 2021
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| 10 | Maximality of Seidel matrices and switching roots of graphs, , Feb. 1, 2021, , 1- 1, Feb. 23, 2021
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| 11 | Non 2-integrable lattices of rank 12, , Mar. 19, 2020, , 12- 12, Mar. 19, 2020
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| 12 | Minimal forbidden graphs for widely generalized line graphs, , Dec. 25, 2019, , 1- 1, Dec. 25, 2019
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| 13 | Non 2-integrable lattices of dimension 12 and discriminant 15, , Dec. 16, 2019, , 1- 9, Dec. 16, 2019
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| 14 | Minimal forbidden graphs for widely generalized line graphs, , Sep. 7, 2019, , ２- ２, Sep. 7, 2019
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| 15 | s-integrable graphs and lattices, , Aug. 28, 2019, , ２- ２, Aug. 28, 2019
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| 16 | An embedding of an integral lattice of rank n into a unimodular lattice of rank n + 2 and its applications to s-integrability, , Jun. 17, 2019, , 1- 6, Jun. 17, 2019
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| 17 | Minimal forbidden graphs for widely generalized line graphs, , Nov. 16, 2018, , 2- 2, Nov. 16, 2018
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| 18 | On graphs with the smallest eigenvalue at least −1 −√2, , Aug. 21, 2018, , ２- ２, Aug. 21, 2018
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| 19 | On graphs with the smallest eigenvalue at least −1 −√2, , Aug. 8, 2018, , 12- 13, Aug. 8, 2018
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| 20 | The smallest eigenvalues of graphs, , Feb. 16, 2018, , １- １, Feb. 16, 2018
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| 21 | The minimal forbidden graphs of the slim h7-line graphs, , Oct. 14, 2017, , ７- 7, Oct. 14, 2017
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| 22 | h7-line Hoffman covers of graphs with smallest eigenvalue at least -1 -√2, , Aug. 18, 2017, , ４- ４, Aug. 8, 2017
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| 23 | Embedding a weighted graph and contribution rate, , Nov. 20, 2015, , 3- 3, Nov. 20, 2015
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