1

An unknotting theorem for delta and sharp edge-homotopy

Ryo Nikkuni
Journal:
Mathematische Nachrichten
Year:
2007
Language:
english
File:
PDF, 410 KB
english, 2007
2

Homotopy on spatial graphs and the Sato-Levine invariant

Fleming, Thomas, Nikkuni, Ryo
Journal:
Transactions of the American Mathematical Society
Year:
2008
Language:
english
File:
PDF, 296 KB
english, 2008
3

REGULAR PROJECTIONS OF GRAPHS WITH AT MOST THREE DOUBLE POINTS

HUH, YOUNGSIK, NIKKUNI, RYO
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2010
Language:
english
File:
PDF, 345 KB
english, 2010
4

A refinement of the Conway–Gordon theorems

Ryo Nikkuni
Journal:
Topology and its Applications
Year:
2009
Language:
english
File:
PDF, 341 KB
english, 2009
5

Delta move and polynomial invariants of links

Taizo Kanenobu, Ryo Nikkuni
Journal:
Topology and its Applications
Year:
2005
Language:
english
File:
PDF, 199 KB
english, 2005
6

THE SECOND SKEW-SYMMETRIC COHOMOLOGY GROUP AND SPATIAL EMBEDDINGS OF GRAPHS

NIKKUNI, RYO
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2000
Language:
english
File:
PDF, 2.52 MB
english, 2000
9

Delta edge-homotopy on theta curves

NIKKUNI, RYO
Journal:
Mathematical Proceedings of the Cambridge Philosophical Society
Year:
2005
Language:
english
File:
PDF, 454 KB
english, 2005
10

Homotopy on spatial graphs and generalized Sato-Levine invariants

Ryo Nikkuni
Journal:
Revista Matemática Complutense
Year:
2010
Language:
english
File:
PDF, 572 KB
english, 2010
12

A CHARACTERIZATION OF KNOTS IN A SPATIAL GRAPH II

NIKKUNI, RYO, ONDA, KAZUKO
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2002
Language:
english
File:
PDF, 445 KB
english, 2002
13

COMPLETELY DISTINGUISHABLE PROJECTIONS OF SPATIAL GRAPHS

NIKKUNI, RYO
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2006
Language:
english
File:
PDF, 199 KB
english, 2006
14

EDGE-HOMOTOPY CLASSIFICATION OF SPATIAL COMPLETE GRAPHS ON FOUR VERTICES

NIKKUNI, RYO
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2004
Language:
english
File:
PDF, 1.07 MB
english, 2004
16

△Y-EXCHANGES AND THE CONWAY–GORDON THEOREMS

NIKKUNI, RYO, TANIYAMA, KOUKI
Journal:
Journal of Knot Theory and Its Ramifications
Year:
2012
Language:
english
File:
PDF, 217 KB
english, 2012