Results 81 to 90 of about 72,858 (181)
Some submersions of CR-hypersurfaces of Kaehler-Einstein manifold
International Journal of Mathematics and Mathematical Sciences, 2003 The Riemannian submersions of a CR-hypersurface M of a Kaehler-Einstein manifold M˜ are studied. If M is an extrinsic CR-hypersurface of M˜, then it is shown that the base space of the submersion is also a Kaehler-Einstein manifold.
Vittorio Mangione
doaj +1 more source
Polymer brush hypersurface photolithography
Nature Communications, 2020 Various lithographic approaches are being explored to create polymer brush patterns with micrometer-scale feature dimensions. Here the authors demonstrate a printing approach which allows independent control of the monomer composition and feature height ...
Carlos Carbonell +7 more
doaj +1 more source
Journal of High Energy Physics, 2022 Compactification of M-theory and of IIB string theory on threefold canonical singularities gives rise to superconformal field theories (SCFTs) in 5d and 4d, respectively.
Cyril Closset +2 more
doaj +1 more source
WDVV‐based recursion for open Gromov–Witten invariants
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract We give a computability result for open Gromov–Witten invariants based on open Witten–Dijkgraaf–Verlinde–Verlinde (WDVV) equations. This is analogous to the result of Kontsevich–Manin for closed Gromov–Witten invariants. For greater generality, we base the argument on a formal object, the Frobenius superpotential, that generalizes several ...
Roi Blumberg, Sara B. Tukachinsky
wiley +1 more source
M\"obius and Laguerre geometry of Dupin Hypersurfaces
, 2015 In this paper we show that a Dupin hypersurface with constant M\"{o}bius curvatures is M\"{o}bius equivalent to either an isoparametric hypersurface in the sphere or a cone over an isoparametric hypersurface in a sphere.
Li, Tongzhu, Qing, Jie, Wang, Changping
core
Lorentzian isoparametric hypersurfaces [PDF]
Pacific Journal of Mathematics, 1985 A Lorentzian hypersurface will be called isoparametric if the minimal polynomial of the shape operator is constant. This allows for complex or non-simple principal curvatures (eigenvalues of the shape operator). This paper locally classifies isoparametric hypersurfaces in Lorentz space.
openaire +3 more sources
Obstructions to homotopy invariance of loop coproduct via parameterized fixed‐point theory
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract Given f:M→N$f:M \rightarrow N$ a homotopy equivalence of compact manifolds with boundary, we use a construction of Geoghegan and Nicas to define its Reidemeister trace [T]∈π1st(LN,N)$[T] \in \pi _1^{st}(\mathcal {L}N, N)$. We realize the Goresky–Hingston coproduct as a map of spectra, and show that the failure of f$f$ to entwine the spectral ...
Lea Kenigsberg, Noah Porcelli
wiley +1 more source
Anais da Academia Brasileira de Ciências, 2002 In this paper we generalize and extend to any Riemannian manifold maximum principles for Euclidean hypersurfaces with vanishing curvature functions obtained by Hounie-Leite.Neste trabalho nós generalizamos e estendemos para uma variedade Riemanniana ...
FRANCISCO X. FONTENELE, SÉRGIO L. SILVA
doaj +1 more source
Dimer models and conformal structures
Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala +3 more
wiley +1 more source
Compact homogeneous hypersurfaces [PDF]
Transactions of the American Mathematical Society, 1958 By "homogeneous" we mean that the group I(M) of isometries of M is transitive on M. By "imbedding" we mean a locally one-to-one mapping of M into Rn+l of class C2. The outline of the proof is as follows. (1) Since M is compact, there exists a point of M in a neighborhood of which M is locally convex. (2) This neighborhood is rigid if n > 3.
openaire +1 more source