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20022009
most citedMeasurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope

911 citations

Showing math.GTShow all

6 papers · 1 filter

math.GT2009

Almost positive links have negative signature

Jozef H. Przytycki, Kouki Taniyama

We analyze properties of links which have diagrams with a small number of negative crossings. We show that if a nontrivial link has a diagram with all crossings positive except pos…

math.GT2009

Circle immersions that can be divided into two arc embeddings

Kouki Taniyama

We give a complete characterization of a circle immersion that can be divided into two arc embeddings in terms of its chord diagram.

math.GT20083 cited

Complementary Regions of Knot and Link Diagrams

Colin Adams, Reiko Shinjo, Kokoro Tanaka

An increasing sequence of integers is said to be universal for knots and links if every knot and link has a projection to the sphere such that the number of edges of each complemen…

math.GT2008

A Graph-Theoretic Approach to a Partial Order of Knots and Links

Toshiki Endo, Tomoko Itoh, Kouki Taniyama

We say that a link is an s-major of a link if any diagram of can be transformed into a diagram of by changing some crossings and smoothing some crossings. T…

math.GT20081 cited

Unknotting numbers of diagrams of a given nontrivial knot are unbounded

Kouki Taniyama

We show that for any nontrivial knot and any natural number there is a diagram of such that the unknotting number of is greater than or equal to . It is well…

math.GT2007

A construction of noncontractible simply connected cell-like two dimensional Peano continua

Katsuya Eda, Umed H. Karimov, Dušan Repovš

Using the topologist sine curve we present a new functorial construction of cone-like spaces, starting in the category of all path-connected topological spaces with a base point an…