1,721,274 research outputs found
Notes on Caecidae (Mollusca: Gastropoda) from southern Mozambique, with the description of a new species
Albano, Paolo G., Pizzini, Mauro (2011): Notes on Caecidae (Mollusca: Gastropoda) from southern Mozambique, with the description of a new species. African Invertebrates 52 (1): 1, DOI: 10.5733/afin.052.0101, URL: http://www.bioone.org/doi/abs/10.5733/afin.052.010
Fig. 1 in Notes on Caecidae (Mollusca: Gastropoda) from southern Mozambique, with the description of a new species
Fig. 1. Geographical position of Inhaca Island in Africa (black circle and arrow).Published as part of Albano, Paolo G. & Pizzini, Mauro, 2011, Notes on Caecidae (Mollusca: Gastropoda) from southern Mozambique, with the description of a new species, pp. 1 in African Invertebrates 52 (1) on page 2, DOI: 10.5733/afin.052.0101, http://zenodo.org/record/791382
Global propagation of singularities for solutions of Hamilton–Jacobi equations
We show that the singularities of the viscosity solutions for a class of Hamilton–Jacobi equations propagate along the generalized characteristics for all the times
On the stability of the cut locus
In Rdbld we consider a Riemannian metric, g, and an open bounded subset, Ω. We study the stability of the cut locus associated with Ω and g w.r.t. perturbations both of the set Ω and of the metric g. In order to have the stability of the cut locus, we assume C2 regularity of the data, the metrics and the sets (in the case of sets with C1,1 boundaries, the cut locus may be unstable). We prove that to C2 perturbations both of the set and of the metric correspond small changes of the cut locus w.r.t. the Hausdorff distance, i.e. the cut locus is stable in the C2 category. We give some examples showing that C1 perturbations may lead to large variations of the cut locus
Triphora smithi G. B. Sowerby III 1904
Triphora smithi G.B. Sowerby III, 1904 Triphora smithi G.B. Sowerby III, 1904: 174, figured. Type locality. Unknown. Type material. NHMUK 1904.12.23.146, holotype. Distribution. Unknown.Published as part of Bakker, Piet A. J. & Albano, Paolo G., 2022, Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda), pp. 1-216 in Zootaxa 5088 (1) on page 163, DOI: 10.11646/zootaxa.5088.1.1, http://zenodo.org/record/583653
On the Subelliptic Eikonal Equation
On a bounded smooth domain, we consider the viscosity solution of the homogeneous Dirichlet problem for the eikonal equation associated with a system of Hörmander’s vector fields. We present some results on the regularity and the structure of the singular support of such a function
Triforis (Viriola) connata var. poecila Hervier 1898
Triforis (Viriola) connata var. poecila Hervier, 1898 Triforis (Viriola) connata var. poecila Hervier, 1898: 265. Type locality. New Caledonia. Type material. Type material not located so far. Distribution. New Caledonia (Hervier 1898).Published as part of Bakker, Piet A. J. & Albano, Paolo G., 2022, Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda), pp. 1-216 in Zootaxa 5088 (1) on page 51, DOI: 10.11646/zootaxa.5088.1.1, http://zenodo.org/record/583653
Trifora axialis Barnard 1963
Trifora axialis Barnard, 1963 Trifora axialis Barnard, 1963b: 492, pl. 1, fig. 7. Type locality. Madagascar, south, approximately 36°48’S, 52°08’E, 400 m deep. Type material. Type material not located so far. Distribution. Madagascar (Barnard 1963b).Published as part of Bakker, Piet A. J. & Albano, Paolo G., 2022, Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda), pp. 1-216 in Zootaxa 5088 (1) on page 32, DOI: 10.11646/zootaxa.5088.1.1, http://zenodo.org/record/583653
Triphora rietensis W. H. Turton 1932
Triphora rietensis W.H. Turton, 1932 Triphora rietensis W.H. Turton, 1932: 116, pl. 25, fig. 848. Type locality. South Africa, Port Alfred. Type material. Type material not located so far. Distribution. South Africa (Turton 1932).Published as part of Bakker, Piet A. J. & Albano, Paolo G., 2022, Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda), pp. 1-216 in Zootaxa 5088 (1) on page 151, DOI: 10.11646/zootaxa.5088.1.1, http://zenodo.org/record/583653
Triforis (Iniforis) violacea var. minor Hervier 1898
Triforis (Iniforis) violacea var. minor Hervier, 1898 Triforis (Iniforis) violacea var. minor Hervier, 1898: 252. Type locality. Possibly New Caledonia. Type material. Type material not located so far. Distribution. New Caledonia (Hervier 1898).Published as part of Bakker, Piet A. J. & Albano, Paolo G., 2022, Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda), pp. 1-216 in Zootaxa 5088 (1) on page 185, DOI: 10.11646/zootaxa.5088.1.1, http://zenodo.org/record/583653
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