Results 71 to 80 of about 974 (99)

Inserting One Edge into a Simple Drawing is Hard. [PDF]

open access: yesDiscrete Comput Geom, 2023
Arroyo A   +5 more
europepmc   +1 more source

Completeness for the Complexity Class ∀∃R and Area-Universality. [PDF]

open access: yesDiscrete Comput Geom, 2023
Dobbins MG   +3 more
europepmc   +1 more source

Combinatorial Properties and Recognition of Unit Square Visibility Graphs. [PDF]

open access: yesDiscrete Comput Geom, 2023
Casel K   +4 more
europepmc   +1 more source

Connectivity of Triangulation Flip Graphs in the Plane. [PDF]

open access: yesDiscrete Comput Geom, 2022
Wagner U, Welzl E.
europepmc   +1 more source

Rigidity of symmetric simplicial complexes and the lower bound theorem

open access: yesForum of Mathematics, Sigma
We show that if $\Gamma $ is a point group of $\mathbb {R}^{k+1}$ of order two for some $k\geq 2$ and $\mathcal {S}$ is a k-pseudomanifold which has a free automorphism of order two, then either $\mathcal {S}$ has a
James Cruickshank   +2 more
doaj   +1 more source

Gromov hyperbolicity of planar graphs

open access: yesOpen Mathematics, 2013
Cantón Alicia   +3 more
doaj   +1 more source

Mutation graph of support $\tau $ -tilting modules over a skew-gentle algebra

open access: yesForum of Mathematics, Sigma
Let $\mathcal {D}$ be a Hom-finite, Krull-Schmidt, 2-Calabi-Yau triangulated category with a rigid object R. Let $\Lambda =\operatorname {End}_{\mathcal {D}}R$ be the endomorphism algebra of R. We introduce the notion of mutation of maximal
Ping He, Yu Zhou, Bin Zhu
doaj   +1 more source

Degree-based topological properties of borophene sheets

open access: yesMain Group Metal Chemistry
This study examines many innovative topological numbers and establishes mathematical interpretations for boron clusters and borophene coverings. The general Randic index, arithmetic index, and Albertson index are discussed in this work for the alpha ...
Al Khabyah Ali   +3 more
doaj   +1 more source

Length spectrum of large genus random metric maps

open access: yesForum of Mathematics, Sigma
We study the length of short cycles on uniformly random metric maps (also known as ribbon graphs) of large genus using a Teichmüller theory approach.
Simon Barazer   +2 more
doaj   +1 more source

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