Search Results - "Naimi, Ramin"
-
1
Pairing strategies for the Maker–Breaker game on the hypercube with subcubes as winning sets
Published in Discrete mathematics (01-10-2023)“…We consider the Maker–Breaker positional game on the vertices of the n-dimensional hypercube {0,1}n with k-dimensional subcubes as winning sets. We describe a…”
Get full text
Journal Article -
2
New bounds on maximal linkless graphs
Published in Algebraic & geometric topology (07-09-2023)Get full text
Journal Article -
3
Intrinsically triple linked complete graphs
Published in Topology and its applications (01-09-2001)“…We prove that every embedding of K 10 in R 3 contains a non-split link of three components. We also exhibit an embedding of K 9 with no such link of three…”
Get full text
Journal Article -
4
Intrinsically knotted graphs with linklessly embeddable simple minors
Published in Algebraic & geometric topology (01-01-2024)Get full text
Journal Article -
5
An Algorithm for Detecting Intrinsically Knotted Graphs
Published in Experimental mathematics (02-01-2014)“…We describe an algorithm that recognizes some (possibly all) intrinsically knotted (IK) graphs and can help find knotless embeddings for graphs that are not…”
Get full text
Journal Article -
6
Almost Alternating Harmonic Series
Published in The College mathematics journal (01-05-2004)“…One of the most important examples in the study of infinite series is the conditional convergence of the alternating harmonic series. Feist and Naimi add pairs…”
Get full text
Journal Article -
7
Many, many more intrinsically knotted graphs
Published in Algebraic & geometric topology (29-05-2014)Get full text
Journal Article -
8
On intrinsically knotted and linked graphs
Published 12-06-2020“…We give a brief survey of some known results on intrinsically linked or knotted graphs…”
Get full text
Journal Article -
9
Spatial graphs with local knots
Published in Revista matemática complutense (01-07-2012)“…It is shown that for any locally knotted edge of a 3-connected graph in S 3 , there is a ball that contains all of the local knots of that edge which is…”
Get full text
Journal Article -
10
Complete graphs whose topological symmetry groups are polyhedral
Published in Algebraic & geometric topology (01-01-2011)Get full text
Journal Article -
11
Pairing strategies for the Maker-Breaker game on the hypercube with subcubes as winning sets
Published 29-07-2020“…We consider the Maker-Breaker positional game on the vertices of the $n$-dimensional hypercube $\{0,1\}^n$ with $k$-dimensional subcubes as winning sets. We…”
Get full text
Journal Article -
12
Topology Explains Why Automobile Sunshades Fold Oddly
Published in The College mathematics journal (01-03-2009)Get full text
Journal Article -
13
Topology Explains Why Automobile Sunshades Fold Oddly
Published in The College mathematics journal (01-03-2009)“…Automobile sunshades always fold into an "odd" number of loops. The explanation why involves elementary topology (braid theory and linking number, both…”
Get full text
Journal Article -
14
A Combinatorial Problem Solved by a Meta-Fibonacci Recurrence Relation
Published 07-02-2019“…We present a natural, combinatorial problem whose solution is given by the meta-Fibonacci recurrence relation $a(n) = \sum_{i=1}^p a(n-i+1 - a(n-i))$, where…”
Get full text
Journal Article -
15
New bounds on maximal linkless graphs
Published 20-09-2020“…Algebr. Geom. Topol. 23 (2023) 2545-2559 We construct a family of maximal linklessly embeddable graphs on $n$ vertices and $3n-5$ edges for all $n\ge 10$, and…”
Get full text
Journal Article -
16
Intrinsically knotted graphs with linklessly embeddable simple minors
Published 17-11-2021“…Algebr. Geom. Topol. 24 (2024) 1203-1223 It has been an open question whether the deletion or contraction of an edge in an intrinsically knotted graph always…”
Get full text
Journal Article -
17
The Complement Problem for Linklessly Embeddable Graphs
Published 29-08-2021“…We find all maximal linklessly embeddable graphs of order up to 11, and verify that for every graph $G$ of order 11 either $G$ or its complement $cG$ is…”
Get full text
Journal Article -
18
Intrinsic linking and knotting are arbitrarily complex in directed graphs
Published 04-01-2019“…Fleming and Foisy recently proved the existence of a digraph whose every embedding contains a $4$-component link, and left open the possibility that a directed…”
Get full text
Journal Article -
19
TOPOLOGICAL SYMMETRY GROUPS OF COMPLETE GRAPHS IN THE 3-SPHERE
Published in Journal of the London Mathematical Society (01-02-2006)“…The orientation preserving topological symmetry group of a graph embedded in the 3-sphere is the subgroup of the automorphism group of the graph consisting of…”
Get full text
Journal Article -
20
Escher squares and lattice links
Published 12-04-2018“…We give a shorter and simpler proof of the result of [2], which gives a necessary and sufficient condition for when a lattice diagram is the projection of a…”
Get full text
Journal Article