Abstract An unusually rich and diverse suite of virgianid brachiopods, hitherto poorly known, is systematically described here for the first time from the Ordovician–Silurian boundary interval (late Katian – Aeronian) of North Greenland. The Late Ordovician virgianids comprise typical taxa of the warm‐water Tcherskidium fauna (e.g.
Jisuo Jin +3 more
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A Rellich type estimate for a subelliptic Helmholtz equation with mixed homogeneities [PDF]
Agnid Banerjee, Nicola Garofalo
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Interior a priori estimates for supersolutions of fully nonlinear subelliptic equations under geometric conditions [PDF]
Alessandro Goffi
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Inverse problems of identifying the time-dependent source coefficient for subelliptic heat equations [PDF]
Mansur I. Ismailov +2 more
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On existence of two positive solutions for the nonlinear subelliptic equations involving nonuniformly p-Laplacian [PDF]
Farman Mamedov, Jasarat Gasimov
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$L^p$ Mapping Properties for the Cauchy-Riemann Equations on Lipschitz Domains Admitting Subelliptic Estimates [PDF]
Phillip S. Harrington, Yunus E. Zeytuncu
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Exact observability properties of subelliptic wave and Schr{ö}dinger equations [PDF]
Cyril Letrouit
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Best constants in Sobolev and Gagliardo–Nirenberg inequalities on graded groups and ground states for higher order nonlinear subelliptic equations [PDF]
Michael Ruzhansky +2 more
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Existence and multiplicity of solutions to Dirichlet problem for semilinear subelliptic equation with a free perturbation [PDF]
Hua Chen, Hongge Chen, Xinrui Yuan
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