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In this paper, we study the regularity problem of the 3D incompressible Navier\~nStokes equations. We prove that the strong solution exists globally for new regularity criteria. For negligible forces, we give an improvement of the known…

Analysis of PDEs · Mathematics 2014-03-18 Abdelhafid Younsi

Rational pairs generalize the notion of rational singularities to reduced pairs $(X,D)$. In this paper we deal with the problem of determining whether a normal variety $X$ has a rationalizing divisor, i.e. a reduced divisor $D$ such that…

Algebraic Geometry · Mathematics 2015-11-16 Lorenzo Prelli

The analysis of solutions to algebraic equations is further simplified. A couple of functions and their analytic continuation or root findings are required.

General Physics · Physics 2007-05-23 Gordon Chalmers

A family of algebraic surfaces with many nondegenerate real singularities is introduced with the help of a construction, which has been used in previous works for the generation of substitution tilings.

Mathematical Physics · Physics 2011-11-08 J. G. Escudero

We introduce the notions of mixed resolutions and simplicial sections, and prove a theorem relating them. This result is used (in another paper) to study deformation quantization in algebraic geometry.

Algebraic Geometry · Mathematics 2007-05-23 Amnon Yekutieli

Some special solutions to the multidimensional Lam\'e and Bourlet type equations are constructed in an explicit form.

solv-int · Physics 2008-02-03 A. V. Razumov , M. V. Saveliev

We analyze the degree-structure induced by large reducibilities under the Axiom of Determinacy. This generalizes the analysis of Borel reducibilities given in references [1], [6] and [5] e.g. to the projective levels.

Logic · Mathematics 2010-03-25 Luca Motto Ros

A method for selecting solution constructors in narrowing is presented. The method is based on a sort discipline that describes regular sets of ground constructor terms as sorts. It is extended to cope with regular sets of ground…

Formal Languages and Automata Theory · Computer Science 2019-04-19 Jochen Burghardt

This article proposes a unified analytical approach leading to a partial resolution of the Erdos-Straus, Sierpinski conjectures, and their generalization. We introduce an equivalent reformulation of these conjectures while constructing two…

Number Theory · Mathematics 2026-02-17 Philemon Urbain Mballa

In general, standard necessary optimality conditions cannot be formulated in a straightforward manner for semi-smooth shape optimization problems. In this paper, we consider shape optimization problems constrained by variational…

Optimization and Control · Mathematics 2020-12-17 Daniel Luft , Volker H. Schulz , Kathrin Welker

Let $X$ be a non-singular compact K\"ahler manifold, endowed with an effective divisor $D= \sum (1-\beta_k) Y_k$ having simple normal crossing support, and satisfying $\beta_k \in (0,1)$. The natural objects one has to consider in order to…

Differential Geometry · Mathematics 2016-05-10 Henri Guenancia , Mihai Păun

We study special linear systems called "very special" whose dimension does not satisfy a Clifford type inequality given by Huisman. We classify all these very special linear systems when they are compounded of an involution. Examples of…

Algebraic Geometry · Mathematics 2014-02-26 Jean-Philippe Monnier

These expository notes, addressed to non-experts, are intended to present some of Hironaka's ideas on his theorem of resolution of singularities. We focus particularly on those aspects which have played a central role in the constructive…

Algebraic Geometry · Mathematics 2011-07-19 Angélica Benito , Santiago Encinas , Orlando E. Villamayor U

The purpose of this paper is to verify a conjecture of Gross under mild hypothesis: all reduced, separated, and excellent schemes have the resolution property away from a closed subset of codimension at least three. Our technique uses…

Algebraic Geometry · Mathematics 2022-03-17 Siddharth Mathur , Stefan Schröer

The analysis of many physical phenomena can be reduced to the study of solutions of differential equations with polynomial coefficients. In the present work, we establish the necessary and sufficient conditions for the existence of…

Classical Analysis and ODEs · Mathematics 2020-03-19 Kyle R. Bryenton1 , Andrew R. Cameron , Keegan L. A. Kirk , Nasser Saad , Patrick Strongman , Nikita Volodin

We introduce a new version of arithmetic in all finite types which extends the usual versions with primitive notions of extensionality and extensional equality. This new hybrid version allows us to formulate a strong form of extensionality,…

Logic · Mathematics 2023-10-26 Benno van den Berg

This paper provides an overview of the necessary and sufficient conditions for guaranteeing the unique solvability of absolute value equations. In addition to discussing the basic form of these equations, we also address several…

Optimization and Control · Mathematics 2023-08-16 Shubham Kumar , Deepmala , Milan Hladik , Hossein Moosaei

Determinantal singularities are an important class of singularities, generalizing complete intersections, which recently have seen a large amount of interest. They are defined as preimage of $M^{t}_{m,n}$ the sets of matrices of rank less…

Algebraic Geometry · Mathematics 2016-04-29 Helge Møller Pedersen

We study the removability of a singular set for elliptic equations involving weight functions and variable exponents. We consider the case where the singular set satisfies conditions related to some generalization of upper Minkowski content…

Analysis of PDEs · Mathematics 2022-07-13 Juan Pablo Alcon Apaza

Below, the explicit solution to a certain finite-difference equation is given and the required steps for derivation of these results are outlined. Everything is included as Mathematica formulae, so the notebook itself can be used for…

Mathematical Physics · Physics 2007-05-23 M. Aunola