Results 161 to 170 of about 63,637 (247)

Bounded projections to the Z$\mathcal {Z}$‐factor graph

open access: yesJournal of Topology, Volume 18, Issue 2, June 2025.
Abstract Suppose that G$G$ is a free product G=A1∗A2∗⋯∗Ak∗FN$G = A_1 * A_2* \cdots * A_k * F_N$, where each of the groups Ai$A_i$ is torsion‐free and FN$F_N$ is a free group of rank N$N$. Let O$\mathcal {O}$ be the deformation space associated to this free product decomposition. We show that the diameter of the projection of the subset of O$\mathcal {O}
Matt Clay, Caglar Uyanik
wiley   +1 more source

Maximum triangle-free induced subgraph

open access: yes, 2018
A clever idea is frequently necessarily the key to solve mathematics problems from Prasolov books. Modern mathematics, especially the theory of NP-completeness starting from the classical book of [1], also gradually moves forward similarly. Continuing the years-long tale of that theory, we add another result claiming the hardness of one more problem ...
openaire   +2 more sources

Rigidity of Symmetric Frameworks on the Cylinder. [PDF]

open access: yesDiscrete Comput Geom
Nixon A, Schulze B, Wall J.
europepmc   +1 more source

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