59,026 research outputs found
The Gabriel-Roiter measure for representation-finite hereditary algebras
No full textChen B. The Gabriel-Roiter measure for representation-finite hereditary algebras. Bielefeld (Germany): Bielefeld University; 2006
Largusoperla flata Chen 2018
No full textLargusoperla flata Chen et al., 2018 Largusoperla flata Chen et al. 2018. Zootaxa, 4378(4): 576. Specimen status: male holotype, NIGP167159 (NIGP). Remarks. Largusoperla flata can be easily distinguished from all other congeners by the paraprocts weakly sclerotized, almost flat, subtriangular from ventral aspect, lateral margins thickened and up-folded, apex blunt and darkly pigmented (Fig. 1; Figs. 12–13 in Chen et al. 2018).Published as part of Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2) on page 282, DOI: 10.11646/zootaxa.4565.2.12, http://zenodo.org/record/258979
Largusoperla borisi Chen 2018
No full textLargusoperla borisi Chen, 2018b Largusoperla borisi Chen 2018b. Zootaxa, 4450(4): 496. Specimen status: male holotype, CZT-PLE-MA4 (ICJUST). Remarks. The hammer of L. borisi is not visible in the holotype. But it can be distinguished from other congeners by the paraprocts strongly sclerotized, long triangular, inner margin concave, outer margin convex, apex obtuse and triangular (Fig. 1, Fig. 2C).Published as part of Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2) on page 283, DOI: 10.11646/zootaxa.4565.2.12, http://zenodo.org/record/258979
Largusoperla arcus Chen 2018
No full textLargusoperla arcus Chen et al., 2018 Largusoperla arcus Chen et al. 2018. Zootaxa, 4378(4): 577. Specimen status: male holotype, NIGP167160 (NIGP). Remarks. Largusoperla arcus has a rounded hammer, which was incorrectly illustrated as elliptical in Fig. 19 of Chen et al. 2018. This species can be distinguished from all other congeners by the paraprocts strongly sclerotized, distantly located and diverging in ventral view, gradually tapered to an unmodified sharp apex (Fig. 1; Fig. 19 in Chen et al. 2018).Published as part of Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2) on page 282, DOI: 10.11646/zootaxa.4565.2.12, http://zenodo.org/record/258979
Largusoperla dewalti Chen 2018
No full textLargusoperla dewalti Chen, 2018b Largusoperla dewalti Chen 2018b. Zootaxa, 4450(4): 496. Specimen status: male holotype, CZT-PLE-MA3 (ICJUST). Remarks. Largusoperla dewalti also has asymmetrical paraprocts (Fig. 1, Fig. 2B), which were incorrectly drawn in Fig. 4 of Chen (2018b). The left paraproct is apparently longer than its right paraproct. It can be distinguished from congeners by the paraprocts very thick, hairy, finger-shaped, unevenly sclerotized with a banded pattern, apex rounded (Fig. 2B).Published as part of Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2) on pages 282-283, DOI: 10.11646/zootaxa.4565.2.12, http://zenodo.org/record/258979
The theorem of Bo Chen and Hall polynomials
No full textRingel CM. The theorem of Bo Chen and Hall polynomials. Nagoya Mathematical Journal. 2006;183:143-160.Let A be the path algebra of a Dynkin quiver. A recent result of Bo Chen asserts that Hom(X, Y/X) = 0 for any Gabriel-Roiter inclusion X subset of Y. The aim of the present note is to give an interpretation of this result in terms of Hall polynomials, and to extend it in this way to representation-directed split algebras. We further show its relevance when dealing with arbitrary representation-finite split algebras
Largusoperla difformitatem Chen 2018
No full text<i>Largusoperla difformitatem</i> Chen, 2018a <p> <i>Largusoperla difformitatem</i> Chen 2018a. Zootaxa, 4442(4): 573. Specimen status: male holotype, CZT-PLE-MA2 (ICJUST).</p> <p> <b>Remarks.</b> <i>Largusoperla difformitatem</i> can be distinguished from congeners by the paraprocts asymmetrical, left paraproct subtriangular with sharp apex, widened at mid-length, right paraproct subtriangular with sharp apex, constricted at mid-length (Fig. 1, Fig. 2A). In addition, <i>L. difformitatem</i> has subapical angles on anterior margin of all wings, which is absent in other congeners.</p>Published as part of <i>Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2)</i> on page 282, DOI: 10.11646/zootaxa.4565.2.12, <a href="http://zenodo.org/record/2589796">http://zenodo.org/record/2589796</a>
Largusoperla crassus Chen 2018
No full text<i>Largusoperla crassus</i> Chen, 2018c <p> <i>Largusoperla crassus</i> Chen 2018c. Zootaxa, 4462(2): 296. Specimen status: male holotype, CZT-PLE-MA5 (ICJUST).</p> <p> <b>Remarks.</b> <i>Largusoperla crassus</i> can be distinguished from other congeners by the paraprocts asymmetrical, subtriangular and slightly upcurved, apparently mostly sclerotized except for the paler bases; left paraproct narrow,</p> <p> right paraproct expanded, apex blunt, subapically with several creases (Fig. 1, Figs. 2 D-E). This species is the only currently described <i>Largusoperla</i> species with well-visible tergal structures.</p>Published as part of <i>Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2)</i> on pages 283-284, DOI: 10.11646/zootaxa.4565.2.12, <a href="http://zenodo.org/record/2589796">http://zenodo.org/record/2589796</a>
A Rosary of Rubies: The Chronicle of the Gur-rigs mDo-chen Tradition from South-Western Tibet
No full textThe mDo-chen bKa’-brgyud-pa school represents a little known Buddhist tradition from Mang-yul Gung-thang in south-western Tibet. It goes back to a Buddhist yogin known as Ma-bdun-pa or Ma-bdun ras-chen (12th/13th c.) and was later mainly spread by members of the Gur family. Although belonging to the “Upper ’Brug” (stod ’brug) branch of the ’Brug-pa bKa’-brgyud-pa school, the mDo-chen tradition has always been deeply infused with the “spoken teachings” (bka’ ma) and “treasure teachings” (gter ma) of the rNying-ma-pa school, and the cult of the “Seven Ma-mo Sisters” (ma mo mched bdun) was particularly practised and transmitted by its members. This book presents a critical edition, an annotated translation and a photographic reproduction of a manuscript copy of a rare chronicle of the Gur-rigs mDo-chen tradition written by Brag-dkar rta-so sPrul-sku Chos-kyi dbang-phyug (1775–1837). The text provides us with an overview of the tradition’s development mainly through biographical accounts but also through prophecies, prayers and praises for individual masters. The study concludes with two appendices based on the mDo chen bka’ brgyud gser ’phreng, a lineage history composed in the 15th century, and the “records of teachings received” (thob yig) of three important members of the Gur family, thus allowing us to gain an insight into the transmissions of the mDo-chen bKa’-brgyud-pa school and the interactions of its representatives with other important Buddhist teachers up to the 18th century. The present work is a further outcome of the author’s investigations into the cultural and religious traditions of south-western Tibet and the neighbouring Himalayan valleys
Genom tron talar han alltjämt. Aspekter på Bo Giertz författarskap
No full textA previously printed summary of Bishop Bo Giertz as an author
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