Contents of Volume 7

All articles in this issue are openly accessible.

On the Mordell-Weil ranks of supersingular abelian varieties in cyclotomic extensions

Antonio Lei and Gautier Ponsinet.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 1-16
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Improvement of the Bernstein-type theorem for space-like zero mean curvature graphs in Lorentz-Minkowski space using fluid mechanical duality

S. Akamine, M. Umehara and K. Yamada.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 17-27
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Counting elliptic curves with an isogeny of degree three

Maggie Pizzo, Carl Pomerance and John Voight.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 28-42
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On defectivity of families of full-dimensional point configurations

Christopher Borger and Benjamin Nill.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 43-51
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Teichmüller spaces of generalized symmetric homeomorphisms

Huaying Wei and Katsuhiko Matsuzaki.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 52-66
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Conformal and CR mappings on Carnot groups

Michael G. Cowling, Ji Li, Alessandro Ottazzi and Qingyan Wu.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 67-81
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Zeros of a one-parameter family of harmonic trinomials

Michael Brilleslyper, Jennifer Brooks, Michael Dorff, Russell Howell and Lisbeth Schaubroeck.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 82-90
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The fundamental theorem of simple harmonic functions

Safwan R. Arekat.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 91-105
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On a quaternionic Picard theorem

Cinzia Bisi and Jörg Winkelmann.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 106-117
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Topological factors of rank-one subshifts

Su Gao and Caleb Ziegler.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 118-126
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$C^*$-algebras with weak$^*$ angelic dual balls

Ryotaro Tanaka.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 127-137
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One Powell generator is redundant

Martin Scharlemann.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 138-141
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Gröbner bases and the Cohen-Macaulay property of Li’s double determinantal varieties

Nathan Fieldsteel and Patricia Klein.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 142-158
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Big fields that are not large

Barry Mazur and Karl Rubin.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 159-169
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Interpolation in model spaces

Pamela Gorkin and Brett D. Wick.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 170-182
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Grassmann semialgebras and the Cayley-Hamilton theorem

Letterio Gatto and Louis Rowen.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 183-201
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Catenarity in quantum nilpotent algebras

K. R. Goodearl and S. Launois.
Proc. Amer. Math. Soc. Ser. B 7 (2020), 202-214
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