Results 81 to 90 of about 336,880 (200)
Non‐Uniqueness, Symmetries and Invariance of Thermal History Modelling in Sedimentary Basins
Basin Research, Volume 38, Issue 4, July–August 2026.This paper approaches non‐unique inverse problems by generating a representative ensemble of all possible solutions using the concept of symmetry. In the context of basin modelling, a symmetry is any manipulation of a forward model's parameters (e.g., thermal history) that leaves the model output (e.g., downhole vitrinite reflectance) unchanged ...
J. Xiao, D. Waltham, Y. Wang
wiley +1 more source
A generalization of Max Noether’s theorem [PDF]
Proceedings of the American Mathematical Society, 2011 Max Noether’s theorem asserts that if ω \omega
openaire +2 more sources
, 2008 For nonsmooth Euler-Lagrange extremals, Noether's conservation laws cease to be valid. We show that Emmy Noether's theorem of the calculus of variations is still valid in the wider class of Lipschitz functions, as long as one restrict the Euler-Lagrange ...
Torres, D.F.M., Delfim Torres
core +1 more source
Composition functionals in higher order calculus of variations and Noether's theorem
, 2021 In the present paper, we discuss the existence and uniqueness of solution for higher-order calculus of variations problems, involving composition of functionals.
Frederico, Gastão S. F. +5 more
core +1 more source
Low eigenvalues of the p$p$–Laplacian in general open sets
Journal of the London Mathematical Society, Volume 114, Issue 2, August 2026.Abstract We consider the minmax Ljusternik–Schnirelmann levels of the constrained p$p$–Dirichlet integral on a general open set of the Euclidean space. We show that, whenever one of these levels lies below the threshold given by the Lp$L^p$ Poincaré constant “at infinity,” it actually defines an eigenvalue of the Dirichlet p$p$–Laplacian. We also prove
Lorenzo Brasco +2 more
wiley +1 more source
A continuous/discrete fractional Noether’s theorem [PDF]
Communications in Nonlinear Science and Numerical Simulation, 2013 This is a preprint of a paper whose final and definite form is published in Nonlinear Sciences and Numerical ...
Bourdin, Loïc +2 more
openaire +4 more sources
Lefschetz decompositions of Kudla–Millson theta functions
Proceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.Abstract In the 1980s Kudla and Millson introduced a theta function in two variables. It behaves as a Siegel modular form with respect to the first variable, and is a closed differential form on an orthogonal Shimura variety X$X$ with respect to the other variable. We prove that the Lefschetz decomposition of the cohomology class of that theta function
Jan Hendrik Bruinier, Riccardo Zuffetti
wiley +1 more source
Identifiability of points and rigidity of hypergraphs under algebraic constraints
Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.Abstract The identifiability problem arises naturally in a number of contexts in mathematics and computer science. Specific instances include local or global rigidity of graphs and unique completability of partially‐filled tensors subject to rank conditions.
James Cruickshank +3 more
wiley +1 more source
Symmetries and conservation laws for Hamiltonian Systems with inputs and outputs:A generalization of Noether's theorem [PDF]
, 1981 The definitions of symmetries and conservation laws for autonomous (i.e. without external forces) Hamiltonian systems are generalized to Hamiltonian systems with inputs and outputs.
Schaft, Arjan van der; id_orcid +1 more
core +2 more sources
Type II degenerations of K3 surfaces of degree 4
Proceedings of the London Mathematical Society, Volume 133, Issue 1, July 2026.Abstract We study Type II degenerations of K3 surfaces of degree 4 where the central fibre consists of two rational components glued along an elliptic curve. Such degenerations are called Tyurin degenerations. We construct explicit Tyurin degenerations corresponding to each of the 1‐dimensional boundary components of the Baily–Borel compactification of
James Matthew Jones
wiley +1 more source