VOL. 25 · NO. 4 | 2021
Assaf Naor
Geom. Topol. 25 (4), 1631-1717, (2021) DOI: 10.2140/gt.2021.25.1631
KEYWORDS: metric embeddings, Dimension reduction, Expander graphs, nonlinear spectral gaps, Markov type, 30L05
Daniel Greb, Benjamin Sibley, Matei Toma, Richard Wentworth
Geom. Topol. 25 (4), 1719-1818, (2021) DOI: 10.2140/gt.2021.25.1719
KEYWORDS: Hermitian Yang–Mills connections, stability, moduli of coherent sheaves, Kobayashi–Hitchin correspondence, Donaldson–Uhlenbeck compactification, 14D20, 14J60, 32G13, 53C07
Ian J Leary, Ashot Minasyan
Geom. Topol. 25 (4), 1819-1860, (2021) DOI: 10.2140/gt.2021.25.1819
KEYWORDS: commensurating HNN extension, biautomatic group, CAT(0) group, 20F10, 20F67, 20E06
Andrew Lobb, Liam Watson
Geom. Topol. 25 (4), 1861-1917, (2021) DOI: 10.2140/gt.2021.25.1861
KEYWORDS: Khovanov, mutant, strongly invertible, knot theory, 57M25, 57M27, 57M60
Piotr Achinger, Mattia Talpo
Geom. Topol. 25 (4), 1919-1978, (2021) DOI: 10.2140/gt.2021.25.1919
KEYWORDS: Kato–Nakayama space, log geometry, Betti realization, rigid analytic space, topology of degenerations, étale homotopy, 14D06, 14F35, 14F45
Man-Chun Lee, Luen-Fai Tam
Geom. Topol. 25 (4), 1979-2015, (2021) DOI: 10.2140/gt.2021.25.1979
KEYWORDS: Kahler manifolds, Kahler-Ricci flow existence, uniformization, 32Q15, 53C44
Vitali Kapovitch
Geom. Topol. 25 (4), 2017-2059, (2021) DOI: 10.2140/gt.2021.25.2017
KEYWORDS: Bakry–Emery Ricci curvature, almost flat, sectional curvature, curvature bounds, infranilmanifold, 53C20, 53C21
Xuemiao Chen, Song Sun
Geom. Topol. 25 (4), 2061-2108, (2021) DOI: 10.2140/gt.2021.25.2061
KEYWORDS: Hermitian Yang–Mills, tangent cone, reflexive sheaf, 53C07
Matthias Franz
Geom. Topol. 25 (4), 2109-2144, (2021) DOI: 10.2140/gt.2021.25.2109
KEYWORDS: toric variety, partial quotient, moment-angle complex, cohomology ring, 14M25, 57S12, 14F45, 55N91
Gregory Sankaran, Francisco Santos
Geom. Topol. 25 (4), 2145-2166, (2021) DOI: 10.2140/gt.2021.25.2145
KEYWORDS: binational geometry, log canonical singularities, blowups, lattice simplices, 14B05, 14E99, 14M25, 52B20
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