On intrinsically knotted or completely 3-linked graphs R Hanaki, R Nikkuni, K Taniyama, A Yamazaki Pacific Journal of Mathematics 252 (2), 407-425, 2011 | 33 | 2011 |
A refinement of the Conway–Gordon theorems R Nikkuni Topology and its Applications 156 (17), 2782-2794, 2009 | 25 | 2009 |
Recent developments in spatial graph theory E Flapan, T Mattman, B Mellor, R Naimi, R Nikkuni arXiv preprint arXiv:1602.08122, 2016 | 21 | 2016 |
Symmetries of spatial graphs and Simon invariants R Nikkuni, K Taniyama Fundamenta Mathematicae 205 (3), 219-236, 2009 | 15 | 2009 |
Reduced Wu and generalized Simon invariants for spatial graphs E Flapan, W Fletcher, R Nikkuni Mathematical Proceedings of the Cambridge Philosophical Society 156 (3), 521-544, 2014 | 12 | 2014 |
-exchanges and the Conway-Gordon theorems R Nikkuni, K Taniyama Journal of Knot Theory and Its Ramifications 21 (07), 2012 | 12 | 2012 |
Edge-homotopy classification of spatial complete graphs on four vertices R Nikkuni Journal of Knot Theory and its Ramifications 13 (06), 763-777, 2004 | 10 | 2004 |
Delta link-homotopy on spatial graphs R Nikkuni Lecture Notes for Workshop of Fledglings on Low-dimensional Topology (Osaka …, 2004 | 10 | 2004 |
Delta link-homotopy on spatial graphs R Nikkuni Revista Matemática Complutense 15 (2), 543-570, 2002 | 10 | 2002 |
The second skew-symmetric cohomology group and spatial embeddings of graphs R Nikkuni Journal of Knot Theory and its Ramifications 9 (03), 387-411, 2000 | 10 | 2000 |
On calculations of the twisted Alexander ideals for spatial graphs, handlebody-knots and surface-links A Ishii, R Nikkuni, K Oshiro | 9 | 2018 |
Completely distinguishable projections of spatial graphs R Nikkuni Journal of Knot Theory and Its Ramifications 15 (01), 11-19, 2006 | 9 | 2006 |
Newly found forbidden graphs for trivializability R Nikkuni, M Ozawa, K Taniyama, Y Tsutsumi Journal of Knot Theory and its Ramifications 14 (04), 523-538, 2005 | 9 | 2005 |
Conway–Gordon type theorem for the complete four-partite graph K_{3,3,1,1} H Hashimoto, R Nikkuni New York Journal of Mathematics 20, 471-495, 2014 | 8 | 2014 |
On boundary spatial embeddings of a graph R Nikkuni, R Shinjo The Quarterly Journal of Mathematics 56 (2), 239-249, 2005 | 8 | 2005 |
Delta edge-homotopy on theta curves R Nikkuni Mathematical Proceedings of the Cambridge Philosophical Society 138 (03 …, 2005 | 8 | 2005 |
A homotopy classification of two-component spatial graphs up to neighborhood equivalence A Mizusawa, R Nikkuni Topology and its Applications 196 (Part B), 710-718, 2015 | 7 | 2015 |
Homotopy on spatial graphs and the Sato-Levine invariant T Fleming, R Nikkuni Transactions of the American Mathematical Society 361 (4), 1885-1902, 2009 | 7 | 2009 |
On Conway–Gordon type theorems for graphs in the Petersen family H Hashimoto, R Nikkuni Journal of Knot Theory and Its Ramifications 22 (09), 1350048, 2013 | 6 | 2013 |
Generalizations of the Conway–Gordon theorems and intrinsic knotting on complete graphs H Morishita, R Nikkuni Journal of the Mathematical Society of Japan 71 (4), 1223-1241, 2019 | 5 | 2019 |