arXiv research

In this paper, we study the Einstein warped products and multiply warped products with a quarter-symmetric connection. We also study warped products and multiply warped products with a quarter-symmetric connection with constant scalar curvature. Then apply our results to generalized Robertson-Walker spacetimes with a q…

Study on Einstein warped spaces with specific connections and curvature properties.

The paper studies quarter-symmetric connections on Hermitian and Kähler manifolds.

The paper studies $*$-$η$-Ricci-Yamabe solitons on $α$-Cosymplectic manifolds.

The paper studies a new connection on Riemannian manifolds and finds conditions for symplectic manifolds.

The object of the present paper is to study invariant submanifolds of (LCS)n-manifolds with respect to quarter symmetric metric connection. It is shown that the mean curvature of an invariant submanifold of (LCS)n-manifold with respect to quarter symmetric metric connection and Levi-Civita connection are equal. An exam…

The paper derives inequalities for submanifolds in quaternionic Kaehler manifolds.

Study characterizes submanifolds in metallic semi-Riemannian manifolds with specific connections.

The present study initially identify the generalized symmetric connections of type $(α,β)$, which can be regarded as more generalized forms of quarter and semi-symmetric connections. The quarter and semi-symmetric connections are obtained respectively when $(α,β)=(1,0)$ and $(α,β)=(0,1)$. Taking that into account, a ne…

The present study initially identified the generalized symmetric connections $(α,β)$ typed, which can be regarded as more generalised forms of quarter and semi-symmetric connections. The quarter and semi-symmetric connections are obtained respectively particularly when $(α,β)=(1,0)$ and $(α,β)=(0,1)$ are taken into con…

We show that if a simply connected manifold is almost quarter pinched then it is diffeomorphic to a CROSS (a compact rank one symmetric space) or a sphere.

Study geometric properties of SGL submanifolds in a specific manifold.

In a Riemannian manifold, the existence of a new connection is proved. In particular cases, this connection reduces to several symmetric, semi-symmetric and quarter-symmetric connections; even some of them are not introduced so far. We also find formula for curvature tensor of this new connection.

The present paper deals with the study of Ricci solitons on invariant and anti-invariant submanifolds of $(LCS)_n$-manifolds with respect to Riemannian connection as well as quarter symmetric metric connection.

The paper classifies geometric structures of δ-almost Yamabe solitons on paracontact metric manifolds.

The present paper deals with the study of totally real submanifolds and $\textit{C}$-totally real submanifolds of $(LCS)_n$-manifolds with respect to Levi-Civita connection as well as quarter symmetric metric connection. It is proved that scalar curvature of $\textit{C}$-totally real submanifolds of $(LCS)_n$-manifold …

Quarter-hour market bursts predict algorithmic trading and returns in crypto futures.

The paper constructs a new metric on Kähler manifolds.

Sphere theorems extended to Riemannian foliations with new results on curvature and leaf spaces.

Even at the beginning of 2008, the economic recession of 2008/09 was not being predicted. The failure to predict recessions is a persistent theme in economic forecasting. The Survey of Professional Forecasters (SPF) provides data on predictions made for the growth of total output, GDP, in the United States for one, two…

Using an artificial neural network (ANN), a fixed universe of approximately 1500 equities from the Value Line index are rank-ordered by their predicted price changes over the next quarter. Inputs to the network consist only of the ten prior quarterly percentage changes in price and in earnings for each equity (by quart…

We say that a nonnegatively curved manifold $(M,g)$ has quarter pinched flag curvature if for any two planes which intersect in a line the ratio of their sectional curvature is bounded above by 4. We show that these manifolds have nonnegative complex sectional curvature. By combining with a theorem of Brendle and Schoe…

In this paper, we prove two results. First, there is a family of sequences of embedded quarters of the hyperbolic plane such that any sequence converges to a limit which is an end of the hyperbolic plane. Second, there is no algorithm which would allow us to check whether two given ends are equal or not.

Optimizes bidding in hourly and quarter-hourly electricity markets to reduce price impact.

Stability of knots at low regularity, and symmetric critical knots for Möbius energy.

Paper proposes a new daily benchmark for post-GFC government bond CIP deviations.

In this paper we study sectional curvature bounds for Riemannian manifolds with density from the perspective of a weighted torsion free connection introduced recently by the last two authors. We develop two new tools for studying weighted sectional curvature bounds: a new weighted Rauch comparison theorem and a modifie…

Defines semi-symmetric metric connection on super warped products.

Formulae for non-symmetric connections derived from covariant derivatives.

The object of the present paper is to study locally $φ$-symmetric LP-Sasakian manifolds admitting semi-symmetric metric connection and obtain a necessary and sufficient condition for a locally $φ$-symmetric LP-Sasakian manifold with respect to semi-symmetric metric connection to be locally $φ$-symmetric LP-Sasakian man…

The paper defines symmetric brackets for skew-symmetric algebroids with totally skew-symmetric torsion.

India's 2020-21 GDP growth forecast is projected at 1.9% due to COVID-19.

Using a fast numerical technique, we investigate a large database of investor suboptimal non-exercise of short maturity American call options on dividend-paying stocks listed on the Dow Jones. The correct modelling of the discrete dividend is essential for a correct calculation of the early exercise boundary as confirm…

The paper studies special warped products with a specific connection on super Riemannian manifolds.

In this paper, we study non integrable distributions in a Riemannian manifold with a semi-symmetric metric connection, a semi-symmetric non-metric connection and a statistical connection. We obtain the Gauss, Codazzi, and Ricci equations for non integrable distributions with respect to the semi-symmetric metric connect…

The paper studies para-Sasaki-like manifolds with a new metric connection.

Study constructs Frenet curves using semi-symmetric metric connection.

The study investigates properties of a specific Riemannian manifold with a semi-symmetric non-metric connection.

LSTMs outperform DFM in nowcasting COVID-19 economic variables.

Characterizes Lorentzian manifolds with semi-symmetric metric connections.

Defines semi-symmetric metric connections on differential forms.

Sprays on Frechet manifolds connect connections and tangent structures.

The action of origin-preserving diffeomorphisms on a space of jets of symmetric connections is considered. Dimensions of moduli spaces of generic connections are calculated. Poincaré series of the geometric structure of symmetric connection is constructed, and shown to be a rational function.

Study classifies Einstein-Yang-Mills spaces in 4D symmetric spaces.

Study special affine connections on symmetric spaces and their products.

The study classifies minimal translation surfaces in 3D and 3D_1.

The aim of this paper is to study generalized recurrent, generalized Ricci-recurrent, weakly symmetric and weakly Ricci-symmetric Kenmotsu manifolds with respect to the semi-symmetric non-metric connection.

The paper examines Einstein doubly warped product manifolds with a semi-symmetric metric connection.