Found 195 Documents (Results 1–100)
Open problems on structure of positively curved projective varieties. (English. French summary) Zbl 1522.32057
The Schwarz lemma: an odyssey. (English) Zbl 1504.30029
Global solutions of semilinear parabolic equations with drift term on Riemannian manifolds. (English) Zbl 1494.35050
On the squares of umbilicity factors of null hypersurfaces in indefinite Kähler manifolds. (On the squares of umbilicity factors of null hypersurfaces in indefinite Kaehler manifolds.) (English) Zbl 1491.53079
Reviewer: Yoshinori Hashimoto (Osaka)
The vanishing rate of Weil-Petersson sectional curvatures. (English) Zbl 1489.30048
Reviewer: Mauro Artigiani (Bogotá)
Sectional curvatures of homogeneous real hypersurfaces of types (A) and (B) in a complex projective space. (English) Zbl 1473.53033
Chern-Ricci curvatures, holomorphic sectional curvature and Hermitian metrics. (English) Zbl 1466.53078
Global solutions of semilinear parabolic equations on negatively curved Riemannian manifolds. (English) Zbl 1461.35130
Classification of Douglas \((\alpha, \beta)\)-metrics on five-dimensional nilpotent Lie groups. (English) Zbl 07811489
On the image of MRC fibrations of projective manifolds with semi-positive holomorphic sectional curvature. (English) Zbl 1462.53062
Four-dimensional almost Einstein manifolds with skew-circulant stuctures. (English) Zbl 1437.53017
Reviewer: Nicolai K. Smolentsev (Kemerovo)
Asymptotic Dirichlet problem for \(\mathcal{A}\)-harmonic and minimal graph equations in Cartan-Hadamard manifolds. (English) Zbl 1430.53047
On the Kähler-Einstein metric at strictly pseudoconvex points. (English) Zbl 1442.32032
Reviewer: Antonella Nannicini (Firenze)
On the \(L^2\)-\(\overline{\partial}\)-cohomology of certain complete Kähler metrics. (English) Zbl 1414.58014
Reviewer: Liwei Chen (Columbus)
Kähler manifolds with negative holomorphic sectional curvature, Kähler-Ricci flow approach. (English) Zbl 1405.53092
On the Riemannian geometry of tangent Lie groups. (English) Zbl 1401.53011
Reviewer: Nabil L. Youssef (Giza)
Curvature properties of homogeneous real hypersurfaces in nonflat complex space forms. (English) Zbl 1402.53015
Reviewer: Gabriel Eduard Vilcu (Ploieşti)
Asymptotic boundary behavior of the Bergman curvatures of a pseudoconvex domain. (English) Zbl 1393.32016
Reviewer: Liwei Chen (Columbus)
Sectional curvatures of ruled real hypersurfaces in a complex hyperbolic space. (English) Zbl 1423.53017
Three-manifolds of constant vector curvature one. (Variétés de dimension trois à courbure vectorielle constante un.) (English. French summary) Zbl 1362.53052
Schurs lemma for Sasakian manifolds. (Chinese. English summary) Zbl 1374.53079
MSC:
53C25
On the total curvature and extrinsic area growth of surfaces with tamed second fundamental form. (English) Zbl 1341.53005
MSC:
53A05
A classification of conformally flat Riemannian manifolds locally isometric to hypersurfaces in euclidean or Minkowski space. (English) Zbl 1474.53048
Naturally reductive homogeneous real hypersurfaces in a nonflat complex space form. (English) Zbl 1329.53075
Short-time existence for the second order renormalization group flow in general dimensions. (English) Zbl 1323.53074
MSC:
53C44
Uniqueness for the heat equation in Riemannian manifolds. (English) Zbl 1307.58010
Reviewer: Dian K. Palagachev (Bari)
On absolutely umbilical hypersurfaces in the Euclidean ambient space. (English) Zbl 1329.53010
Mihai, Adela (ed.) et al., Riemannian geometry and applications. Proceedings of the international conference – RIGA, Bucharest, Romania, May 19–21, 2014. Bucureşti: Editura Universităţii din Bucureşti (ISBN 978-606-16-0553-8). 163-173 (2014).
Construction of complex contact manifolds via reduction. (English) Zbl 1327.53104
Reviewer: Daniel Mathews (Monash)
A ladder of curvatures for hypersurfaces in the Euclidean ambient space. (English) Zbl 1316.53009
MSC:
53A07
Sectional curvatures of ruled real hypersurfaces in a nonflat complex space form. (English) Zbl 1303.53031
Maeda, Sadahiro (ed.) et al., Differential geometry of submanifolds and its related topics. Proceedings of the international workshop in honor of S. Maeda’s 60th birthday, Saga City, Japan, August 4–6, 2012. Hackensack, NJ: World Scientific (ISBN 978-981-4566-27-8/hbk; 978-981-4566-29-2/ebook). 113-118 (2014).
Nonnegatively curved geodesic spheres in a complex hyperbolic space. (English) Zbl 1295.53054
MSC:
53C40
About a special class of two-dimensional complex Finsler spaces. (English) Zbl 1272.53062
Reviewer: Radu Miron (Iaşi)
A variation formula for the topological entropy of convex-cocompact manifolds. (English) Zbl 1241.53070
A general existence proof for non-linear elliptic equations in semi-Riemannian spaces. (English) Zbl 1180.53038
Remarks on surfaces of large mean curvature. (English) Zbl 1163.53039
Reviewer: Constantin Călin (Iaşi)
MSC:
53C42
Generalized Veronese manifolds and isotropic immersions. (English) Zbl 1160.53028
Kowalski, Oldřich (ed.) et al., Differential geometry and its applications. Proceedings of the 10th international conference on differential geometry and its applications, DGA 2007, Olomouc, Czech Republic, August 27–31, 2007. Hackensack, NJ: World Scientific (ISBN 978-981-279-060-6/hbk). 197-202 (2008).
Pseudo-holomorphic sectional curvatures of real hypersurfaces in a complex space form. (English) Zbl 1146.53012
Kähler metrics generated by functions of the time-like distance in the flat Kähler-Lorentz space. (English) Zbl 1106.53015
An eigenvalue estimate for manifolds with parallel Ricci tensor. (English) Zbl 1109.53039
MSC:
53C20
Two problems in real and complex integral geometry. (English) Zbl 1153.53333
Kowalski, Oldřich (ed.) et al., Complex, contact and symmetric manifolds. In honor of L. Vanhecke. Selected lectures from the international conference “Curvature in Geometry” held in Lecce, Italy, June 11–14, 2003. Boston, MA: Birkhäuser (ISBN 0-8176-3850-4/hbk). Progress in Mathematics 234, 209-220 (2005).
MSC:
53C65
On the holomorphic sectional and bisectional curvatures in complex Finsler geometry. (English) Zbl 1061.32013
The relative volume growth of minimal submanifolds. (English) Zbl 1024.53042
Reviewer: R.E.Stong (Charlottesville)
On sectional and bisectional curvature of the \(H\)-umbilical submanifolds. (English) Zbl 1020.53009
Stationary curvatures of two-dimensional totally geodesic submanifolds in the Grassmannian of bivectors. (English. Russian original) Zbl 1071.53532
J. Math. Sci., New York 119, No. 2, 223-229 (2004); translation from Zap. Nauchn. Semin. POMI 280, 175-185 (2001).
The submanifolds in a locally symmetric and conformally flat Riemannian manifold. (Chinese. English summary) Zbl 1036.53036
Reviewer: Bang-yen Chen (East Lansing)
MSC:
53C40
Normality of complex contact manifolds. (English) Zbl 0990.53080
Reviewer: Manuel de León (Madrid)
Some remarks on \(G\)-actions with sections. (English) Zbl 0994.53017
Reviewer: J.W.Cannon (Provo)
Fixed point free circle actions and finiteness theorems. (English) Zbl 1010.53032
Reviewer: Maria Falcitelli (Bari)
On some methods of construction of invariant normalizations of lightlike hypersurfaces. (English) Zbl 0965.53022
Reviewer: Ülo Lumiste (Tartu)
Isoperimetric inequalities for extrinsic balls in minimal submanifolds and their applications. (English) Zbl 0977.53069
Reviewer: Salvador D.Gigena (Rosario)
Relations between Ricci curvature and shape operator for submanifolds with arbitrary codimensions. (English) Zbl 0962.53015
Reviewer: Luc Vrancken (Utrecht)
MSC:
53B25
Geometrical analysis of free rotation of a rigid body. (English) Zbl 0963.70005
Reviewer: Liu Yanzhu (Shanghai)
Counting open negatively curved manifolds up to tangential homotopy equivalence. (English) Zbl 0968.53026
Characterization of spheres in a Euclidean space. (English) Zbl 0942.53008
MSC:
53A07
Curvatures of the product of two 3-spheres with deformed metrics. (English) Zbl 0978.53098
MSC:
53C35
The comparison theorem for the Bergman and Kobayashi metrics on a class of pseudoconvex domains. (Chinese. English summary) Zbl 0899.32009
The asymptotic Dirichlet problem with respect to an elliptic operator on a Cartan-Hadamard manifold with unbounded curvatures. (English. Abridged French version) Zbl 0890.35029
Harmonic maps with prescribed singularities into Hadamard manifolds. (English) Zbl 0873.58025
Reviewer: G.Zet (Iaşi)
Differential geometry of submanifolds with arbitrary codimensions. (English) Zbl 0936.53014
Dillen, F. (ed.) et al., Geometry and topology of submanifolds, VIII. Proceedings of the international meeting on geometry of submanifolds, Brussels, Belgium, July 13-14, 1995 and Nordfjordeid, Norway, July 18-August 7, 1995. Singapore: World Scientific. 69-73 (1996).
MSC:
53B25
On the \(L^{{n\over 2}}\)-norm of scalar curvature. (English) Zbl 0870.53033
Reviewer: M.Craioveanu (Timişoara)
Cylinder theorems for convex hypersurfaces. (English. Russian original) Zbl 0854.53003
Sib. Math. J. 35, No. 4, 815-817 (1994); translation from Sib. Mat. Zh. 35, No. 4, 915-918 (1994).
Reviewer: V.V.Goldberg (Newark/New Jersey)
Natural weak Riemannian structures on the space of Riemannian metrics. (English. Russian original) Zbl 0866.58016
Sib. Math. J. 35, No. 2, 396-402 (1994); translation from Sib. Mat. Zh. 35, No. 2, 439-445 (1994).
Reviewer: N.Papaghiuc (Iaşi)
\(L_{n/2}\)-pinching theorems for submanifolds with parallel mean curvature in a sphere. (English) Zbl 0824.53048
Reviewer: B.Opozda (Kraków)
Essential spectrum of the Laplacian on manifolds of nonnegative curvature. (English) Zbl 0815.53049
Reviewer: P.Gilkey (Eugene)
On isometric immersions into complex space forms. (English) Zbl 0806.53019
Reviewer: M.Dajczer (Rio de Janeiro)
On the topology of nonnegatively curved simply connected 4-manifolds with discrete symmetry. (English) Zbl 0833.57006
Reviewer: M.Craioveanu (Timişoara)
Complex hyperbolic manifolds and exotic smooth structures. (English) Zbl 0804.53055
Reviewer: A.P.Stone (Albuquerque)
Critical sectional curvatures and characteristic curvatures of a quaternionic Kähler manifold. (Italian. English summary) Zbl 0799.53042
Reviewer: D.Perrone (Lecce)
On almost constant-type manifolds. (English) Zbl 0791.53038
Reviewer: L.Vanhecke (Heverlee)
MSC:
53C15
A matrix Harnack estimate for the heat equation. (English) Zbl 0799.53048
Reviewer: G.Dziuk (Freiburg i.Br.)
Mean curvature comparison for tubular hypersurfaces in Kähler manifolds and some applications. (English) Zbl 0782.53054
Reviewer: J.-H.Eschenburg (Augsburg)
On CR-submanifolds of a certain class of almost contact manifolds. (English) Zbl 0824.53054
Reviewer: A.Bejancu (Iaşi)
Harmonic maps from a Riemannian manifold with a pole into an Hadamard manifold with negative sectional curvatures. (English) Zbl 0753.58007
Reviewer: J.Eells (Cambridge)
Asymptotic curves of submanifolds. (English. Russian original) Zbl 0828.53019
Math. Notes 52, No. 5, 1081-1087 (1992); translation from Mat. Zametki 52, No. 5, 3-12 (1992).
Reviewer: A.A.Borisenko (Khar’kov)
MSC:
53B25
Harmonic and Killing \(p\)-forms on the locally decomposable Riemannian manifolds. (English) Zbl 0804.53067
Reviewer: C.Udrişte (Bucureşti)
On the curvature of the space of associated metrics on a contact manifold. (Russian) Zbl 0780.53029
Reviewer: V.V.Goldberg (Newark / New Jersey)
Curvature of the diffeomorphism group and of the space of volume elements. (Russian) Zbl 0778.53036
Reviewer: N.A.Soare (Bucureşti)
The spectrum of the Laplacian of manifolds of positive curvature. (English) Zbl 0764.53028
Reviewer: P.Gilkey (Eugene)
On the curvature of the space of associated metrics on a contact manifold. (English. Russian original) Zbl 0834.53027
Sib. Math. J. 33, No. 6, 1119-1125 (1992); translation from Sib. Mat. Zh. 33, No. 6, 188-194 (1992).
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