TY - JOUR A1 - Bär, Christian A1 - Dahl, Matthias T1 - Small eigenvalues of the conformal laplacian N2 - We introduce a differential topological invariant for compact differentiable manifolds by counting the small eigenvalues of the Conformal Laplace operator. This invariant vanishes if and only if the manifold has a metric of positive scalar curvature. We show that the invariant does not increase under surgery of codimension at least three and we give lower and upper bounds in terms of the alpha-genus. Y1 - 2003 UR - http://xxx.uni-augsburg.de/abs/math.DG/0204200 ER - TY - JOUR A1 - Bär, Christian A1 - Moroianu, Sergiu T1 - Heat kernel asymptotics for roots of generalized laplacians N2 - We describe the heat kernel asymptotics for roots of a Laplace type operator on a closed manifold. A previously known relation between the Wodzicki residue and heat trace asymptotics is shown to hold pointwise for the corresponding densities. Y1 - 2003 UR - http://users.math.uni-potsdam.de/~baer/preprints/hta.html ER - TY - JOUR A1 - Bär, Christian A1 - Schopka, Sven T1 - The dirac determinant of spherical space forms N2 - The zeta-regularized determinants of the Dirac operator and of its square are computed on spherical space forms. On S^2 the determinant of Dirac operators twisted by a complex line bundle is also calculated. Y1 - 2003 UR - http://users.math.uni-potsdam.de/~baer/preprints/determinante.html ER - TY - BOOK A1 - Camalès, Renaud T1 - A Note on the Ramified Cauchy Problem T3 - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell Y1 - 2003 SN - 1437-739X PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Camalès, Renaud T1 - Explicit formulation of the solution of hamada-leray-wagschalïs theorem T3 - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell Y1 - 2003 SN - 1437-739X PB - Univ. CY - Potsdam ER - TY - INPR A1 - Camalès, Renaud T1 - A note on the ramified Cauchy problem N2 - In this paper, the ramified Cauchy problem in C² for operator with multiple characteristics of constant multiplicity and second member ramified around some analytic set is studied. T3 - Preprint - (2003) 21 KW - Ramified Cauchy problem KW - analytic continuation Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-26646 ER - TY - JOUR A1 - Canfora, Fabrizio A1 - Schmidt, Hans-Jürgen T1 - Vacuum solutions which cannot be written in diagonal form N2 - A vacuum solution of the Einstein gravitational field equation is shown to follow from a general ansatz but fails to follow from it if the symmetric matrix in it is assumed to be in diagonal form. Y1 - 2003 UR - http://arXiv.org/abs/gr-qc/0305107 ER - TY - JOUR A1 - Changphas, Thawhat A1 - Denecke, Klaus-Dieter T1 - Green's Relations on the Seminearring of Full Hypersubstitutions of Type (n) Y1 - 2003 ER - TY - JOUR A1 - Changphas, Thawhat A1 - Denecke, Klaus-Dieter T1 - Complexity of Hypersubstitutions and Lattices of Varieties Y1 - 2003 ER - TY - BOOK A1 - Davis, Simon T1 - The quantum cosmological wavefunction at very early times for a quadratic gravity theory T3 - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell Y1 - 2003 SN - 1437-739X PB - Univ. CY - Potsdam ER -