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[null,"1.","Record Nr.",null,"UNINA9910456689603321"]
[null,null,"Autore",null,"Bismut Jean-Michel"]
[null,null,"Titolo",null,"The hypoelliptic Laplacian and Ray-Singer metrics [[electronic resource] /] / Jean-Michel Bismut, Gilles Lebeau"]
[null,null,"Pubbl/distr/stampa",null,"Princeton, : Princeton University Press, 2008"]
[null,null,"ISBN",null,"1-282-45837-X"]
[{"$nulls":4},"9786612458378"]
[{"$nulls":4},"1-4008-2906-2"]
[null,null,"Edizione",null,"[Course Book]"]
[null,null,"Descrizione fisica",null,"1 online resource (378 p.)"]
[null,null,"Collana",null,"Annals of mathematics studies ; ; no. 167"]
[null,null,"Classificazione",null,"SK 620"]
[null,null,"Disciplina",null,"515/.7242"]
[null,null,"Soggetti",null,"Differential equations, Hypoelliptic"]
[{"$nulls":4},"Laplacian operator"]
[{"$nulls":4},"Metric spaces"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references (p. [353]-357) and indexes."]
[null,null,"Nota di contenuto",null,"Frontmatter -- Contents -- Introduction -- Chapter 1. Elliptic Riemann-Roch-Grothendieck and flat vector bundles -- Chapter 2. The hypoelliptic Laplacian on the cotangent bundle -- Chapter 3. Hodge theory, the hypoelliptic Laplacian and its heat kernel -- Chapter 4. Hypoelliptic Laplacians and odd Chern forms -- Chapter 5. The limit as t → +∞ and b → 0 of the superconnection forms -- Chapter 6. Hypoelliptic torsion and the hypoelliptic Ray-Singer metrics -- Chapter 7. The hypoelliptic torsion forms of a vector bundle -- Chapter 8. Hypoelliptic and elliptic torsions: a comparison formula -- Chapter 9. A comparison formula for the Ray-Singer metrics -- Chapter 10. The harmonic forms for b → 0 and the formal Hodge theorem -- Chapter 11. A proof of equation (8.4.6) -- Chapter 12. A proof of equation (8.4.8) -- Chapter 13. A proof of equation (8.4.7) -- Chapter 14. The integration by parts formula -- Chapter 15. The hypoelliptic estimates -- Chapter 16. Harmonic oscillator and the J0 function -- Chapter 17. The limit of A'2φb,±H as b → 0 -- Bibliography -- Subject Index -- Index of Notation"]
[null,null,null,"Sommario/riassunto","This book presents the analytic foundations to the theory of the hypoelliptic Laplacian. The hypoelliptic Laplacian, a second-order operator acting on the cotangent bundle of a compact manifold, is supposed to interpolate between the classical Laplacian and the "]
[{"$nulls":4},"geodesic flow. Jean-Michel Bismut and Gilles Lebeau establish the basic functional analytic properties of this operator, which is also studied from the perspective of local index theory and analytic torsion. The book shows that the hypoelliptic Laplacian provides a geometric version of the Fokker-Planck equations. The authors give the proper functional analytic setting in order to study this operator and develop a pseudodifferential calculus, which provides estimates on the hypoelliptic Laplacian's resolvent. When the deformation parameter tends to zero, the hypoelliptic Laplacian converges to the standard Hodge Laplacian of the base by a collapsing argument in which the fibers of the cotangent bundle collapse to a point. For the local index theory, small time asymptotics for the supertrace of the associated heat kernel are obtained. The Ray-Singer analytic torsion of the hypoelliptic Laplacian as well as the associated Ray-Singer metrics on the determinant of the cohomology are studied in an equivariant setting, resulting in a key comparison formula between the elliptic and hypoelliptic analytic torsions."]
[null,"2.","Record Nr.",null,"UNINA9910792390403321"]
[null,null,"Autore",null,"Carpenter Edward"]
[null,null,"Titolo",null,"Pagan & Christian creeds : their origin and meaning / / by Edward Carpenter"]
[null,null,"Pubbl/distr/stampa",null,"[Luton, Bedfordshire] : , : Andrews UK Limited, , [2012]"]
[{"$nulls":4},"©2012"]
[null,null,"ISBN",null,"1-78166-539-7"]
[null,null,"Descrizione fisica",null,"1 online resource (175 p.)"]
[null,null,"Disciplina",null,"209"]
[null,null,"Soggetti",null,"Mythology"]
[{"$nulls":4},"Religion"]
[{"$nulls":4},"Christianity and other religions"]
[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","Description based upon print version of record."]
[null,null,null,"Sommario/riassunto","A fascinating look at the history of Pagan and Christian faiths by prolific philosopher and writer Edward Carpenter."]