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We prove that Riemannian metrics with a uniform weak norm can be smoothed to having arbitrarily high regularity. This generalizes all previous smoothing results. As a consequence we obtain a generalization of Gromov's almost flat manifold…

dg-ga · Mathematics 2008-02-03 Peter Petersen , Guofang Wei , Rugang Ye

We prove Fujita's log spectrum conjecture. It follows from the ACC of a suitable set of pseudo-effective thresholds.

Algebraic Geometry · Mathematics 2012-12-04 Gabriele Di Cerbo

In this paper we combine two existing approaches for approximating attractors. One of them approximates the attractors arbitrarily well by sublevel sets related to solutions of infinite dimensional linear programming problems. A downside…

Optimization and Control · Mathematics 2023-10-06 Corbinian Schlosser

For quadratic curves over $F_p$, the number of solutions, which is governed by an analogue of the Mordell-Weil group, is expressed with the Legendre symbol of a coefficient of quadratic curves. Focusing on the number of solutions, a…

Number Theory · Mathematics 2024-12-11 Masahito Hayashi , Kazuyasu Shigemoto , Takuya Tsukioka

We extend Orlov's result that certain functors between derived categories of smooth projective varieties are Fourier--Mukai transforms to the case when those varieties are smooth and proper.

Algebraic Geometry · Mathematics 2020-06-30 Noah Olander

We consider the approximation of a continuous function, defined on a compact set of the $d$-dimensional Euclidean space, by sums of two ridge functions. We obtain a necessary and sufficient condition for such a sum to be a best…

Functional Analysis · Mathematics 2016-09-28 Vugar Ismailov

In this paper, we investigate very general approximation kernels with special properties, called an approximate identity, and prove almost everywhere and norm convergence of these general methods, which consists of a class of summability…

Classical Analysis and ODEs · Mathematics 2022-06-29 N. Nadirashvili , G. Tephnadze , G. Tutberidze

In this paper, we develop a continual analog of decomposition over orthogonal bases in spaces generated by equidistant shifts of a single function. By doing so, we obtain an explicit expression for best approximation by spaces of shifts in…

Classical Analysis and ODEs · Mathematics 2022-08-09 A. Yu. Ulitskaya

Properties of local and global slope of a function and its approximate critical points sets are studied in relation to determination of the function.

Functional Analysis · Mathematics 2025-02-20 Milen Ivanov , Nadia Zlateva

We look at approximations $ \zeta_X $ of the $\zeta$-function introduced in Gonek's paper (arXiv:0704.3448). We look at how close the approximate zeroes are to the actual zeroes when (i) X is fixed (Section 1)(ii) X varies like $ t/2\pi $…

Number Theory · Mathematics 2022-11-23 Aditya Ghosh

We propose a construction of mean curvature flows by approximation for very general initial data, in the spirit of the works of Brakke and of Kim & Tonegawa based on the theory of varifolds. Given a general varifold, we construct by…

Differential Geometry · Mathematics 2025-10-02 Blanche Buet , Gian Paolo Leonardi , Simon Masnou , Abdelmouksit Sagueni

We show how ideas from \cite{2Blocki} and \cite{3Blocki} to prove the Suita conjecture can be adapted to give a proof of the Ohsawa-Takegoshi extension theorem with sharp estimates.

Complex Variables · Mathematics 2014-07-21 Bo Berndtsson , László Lempert

We prove a Meyers type regularity estimate for approximate solutions of second order elliptic equations obtained by Galerkin methods. The proofs rely on interpolation results for Sobolev spaces on graphs. Estimates for second order elliptic…

Analysis of PDEs · Mathematics 2012-10-10 Nadine Badr , Emmanuel Russ

We discuss adjunction formulas for fiber spaces and embeddings, extending the known results along the lines of the Adjunction Conjecture, independently proposed by Y. Kawamata and V.V. Shokurov. As an application, we simplify Koll\'ar's…

Algebraic Geometry · Mathematics 2007-05-23 Florin Ambro

In the present paper, we consider $(p,q)$-analogue of the Baskakov-Beta operators and using it, we estimate some direct results on approximation. Also, we represent the convergence of these operators graphically using MATLAB.

Classical Analysis and ODEs · Mathematics 2016-08-29 Neha Malik , Vijay Gupta

Exponential approximation based on the first order mean spherical approximation (FMSA) is applied to the study of the structure and thermodynamics of hard-core repulsive Yukawa fluids. The proposed theory utilizes an exponential enhancement…

Soft Condensed Matter · Physics 2012-07-13 S. Hlushak , A. Trokhymchuk

In this paper, we define a finite sum analogue of multiple polylogarithms inspired by the work of Kaneko and Zaiger and prove that they satisfy a certain analogue of the shuffle relation. Our result is obtained by using a certain partial…

Number Theory · Mathematics 2015-02-25 Masataka Ono , Shuji Yamamoto

We study Furuta's finite dimensional approximations for the flow lines of the Moment action functional for toric symplectic orbifolds and show their relation to Givental's toric map space.

Symplectic Geometry · Mathematics 2007-05-23 Urs Frauenfelder

In this work we present an a posteriori error indicator for approximation schemes of Runge-Kutta-discontinuous-Galerkin type arising in applications of compressible fluid flows. The purpose of this indicator is not only for mesh adaptivity,…

Numerical Analysis · Mathematics 2017-09-08 Jan Giesselmann , Tristan Pryer

In this article, we generalize several fundamental results for arithmetic divisors, such as the continuity of the volume function, the generalized Hodge index theorem, Fujita's approximation theorem for arithmetic divisors and Zariski…

Algebraic Geometry · Mathematics 2013-03-19 Atsushi Moriwaki