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[null,"1.","Record Nr.",null,"UNINA9910704090003321"]
[null,null,"Autore",null,"Weber Sandra <1961->"]
[null,null,"Titolo",null,"Gifford Pinchot : walrus of the forest / / by Sandra Weber"]
[null,null,"Pubbl/distr/stampa",null,"Milford, PA : , : [U.S. Department of Agriculture, Forest Service], , [2005?]"]
[{"$nulls":4},"℗♭2005"]
[null,null,"Descrizione fisica",null,"1 online resource (2 pages) : illustrations"]
[null,null,"Soggetti",null,"Conservationists - United States"]
[{"$nulls":4},"Forest rangers - United States"]
[{"$nulls":4},"Conservationists"]
[{"$nulls":4},"Forest rangers"]
[{"$nulls":4},"Grey Towers National Historic Site (Milford, Pa.)"]
[{"$nulls":4},"Pennsylvania Milford (Pike County) Grey Towers National Historic Site"]
[{"$nulls":4},"United States"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Title from caption (viewed Sept. 19, 2016)."]
[{"$nulls":4},"\"Reprinted from Highlights for Children, August 2005\"--Page [1]."]
[null,"2.","Record Nr.",null,"UNINA9910254281103321"]
[null,null,"Autore",null,"Kamada Seiichi"]
[null,null,"Titolo",null,"Surface-knots in 4-space : an introduction / / by Seiichi Kamada"]
[null,null,"Pubbl/distr/stampa",null,"Singapore : , : Springer Singapore : , : Imprint : Springer, , 2017"]
[null,null,"ISBN",null,"981-10-4091-5"]
[null,null,"Edizione",null,"[1st ed. 2017.]"]
[null,null,"Descrizione fisica",null,"1 online resource (XI, 212 p. 146 illus.)"]
[null,null,"Collana",null,"Springer Monographs in Mathematics, , 1439-7382"]
[null,null,"Disciplina",null,"514.224"]
[null,null,"Soggetti",null,"Geometry"]
[{"$nulls":4},"Algebraic topology"]
[{"$nulls":4},"Manifolds (Mathematics)"]
[{"$nulls":4},"Complex manifolds"]
[{"$nulls":4},"Algebraic Topology"]
[{"$nulls":4},"Manifolds and Cell Complexes (incl. Diff.Topology)"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"1 Surface-knots -- 2 Knots -- 3 Motion pictures -- 4 Surface diagrams -- 5 Handle surgery and ribbon surface-knots -- 6 Spinning construction -- 7 Knot concordance -- 8 Quandles -- 9 Quandle homology groups and invariants -- 10 2-Dimensional braids -- Bibliography -- Epilogue -- Index."]
[null,null,null,"Sommario/riassunto","This introductory volume provides the basics of surface-knots and related topics, not only for researchers in these areas but also for graduate students and researchers who are not familiar with the field. Knot theory is one of the most active research fields in modern mathematics. Knots and links are closed curves (one-dimensional manifolds) in Euclidean 3-space, and they are related to braids and 3-manifolds. These notions are generalized into higher dimensions. Surface-knots or surface-links are closed surfaces (two-dimensional manifolds) in Euclidean 4-space, which are related to two-dimensional braids and 4-manifolds. Surface-knot theory treats not only closed surfaces but also surfaces with boundaries in 4-manifolds. For example, knot concordance and knot cobordism, which are also important objects in knot theory, are surfaces in the product space of the 3-sphere and the interval. Included in this book are basics of surface-knots and the related topics of classical knots, the motion picture method, surface diagrams, handle surgeries, ribbon surface-knots, spinning construction, knot concordance and 4-genus, quandles "]
[{"$nulls":4},"and their homology theory, and two-dimensional braids."]