The $Q$-curvature on a 4-dimensional Riemannian manifold $(M,g)$ with $\int_MQdV_g=8π^2$

The $Spin(7)$-structures on complex line bundles and explicit Riemannian metrics with SU(4)-holonomy

The $α$-Invariant on $CP^2#2\bar{CP^2}$

The $η$-Einstein condition on indefinite s-manifolds

The *-Ricci tensor for hypersurfaces in CP^n and CH^n

The 1-jet Generalized Lagrange Geometry induced by the rheonomic Chernov metric

The 1856 Lemma of Cayley Revisited

The A.P.S. signature formula for measured foliations

The ADHM Construction and Anselmi's Topological Anomalies

The adjoint variety of SL_{m+1}(C) is rigid to order three

The ADM mass of asymptotically flat hypersurfaces

The advanced maximum principle for parabolic systems on manifolds with boundary

The affine bundle theorem in synthetic differential geometry of jet bundles

The affine geometry of the Lanczos H-tensor formalism

The affine Plateau problem

The Alexandrov problem in a quotient space of $\mathbb H^2\times \mathbb R$

The Algebraic Theory of the Fundamental Germ

The Almost Hermitian-Einstein Flow

The Almost Rigidity of Manifolds with Lower Bounds on Ricci Curvature and Minimal Volume Growth

The ambient metric