Results 161 to 170 of about 6,205 (243)

A linear operator method on arbitrary Riemann surfaces [PDF]

Transactions of the American Mathematical Society, 1952
openaire   +2 more sources

The weak (1,1) boundedness of Fourier integral operators with complex phases

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract Let T$T$ be a Fourier integral operator of order −(n−1)/2$-(n-1)/2$ associated with a canonical relation locally parametrised by a real‐phase function. A fundamental result due to Seeger, Sogge and Stein proved in the 90's gives the boundedness of T$T$ from the Hardy space H1$H^1$ into L1$L^1$. Additionally, it was shown by T.
Duván Cardona, Michael Ruzhansky
wiley   +1 more source

A Sharp Quantitative Alexandrov Inequality and Applications to Volume Preserving Geometric Flows in 3D. [PDF]

Arch Ration Mech Anal
Julin V, Morini M, Oronzio F, Spadaro E.
europepmc   +1 more source

Riemann's method of integration. Its extensions with an application

Collectanea Mathematica, 1953
The classical method of integration of hypcrbolic differential equations, due to Riemann, is developed and extended. The cases in which the Cauchy data is discontinuous and the initial curve is cut by a characteristic in more than one point, are considered. An application of the extensions to onedimensional gas dynamics is made.
openaire   +2 more sources

Osculating geometry and higher‐order distance Loci

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract We discuss the problem of optimizing the distance function from a given point, subject to polynomial constraints. A key algebraic invariant that governs its complexity is the Euclidean distance degree, which pertains to first‐order tangency. We focus on the data locus of points possessing at least one critical point of the distance function ...
Sandra Di Rocco, Kemal Rose, Luca Sodomaco   +2 more
wiley   +1 more source

A topological method of generating action potentials and electroencephalography oscillations in a surface network. [PDF]

R Soc Open Sci
Sen S.
europepmc   +1 more source

Seasonal Shift of Dissolved Organic Matter Stoichiometry in the Surface North Pacific Subtropical Gyre: Regulation by Enhanced N2 Fixation and DOP Utilization

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Dissolved organic matter (DOM) pool acts as both nutrient source and sink in the oligotrophic surface ocean. However, the drivers of seasonal variations in DOM stoichiometry and their relationship to nutrient cycling remain poorly understood.
Lusong Zhang, Zuozhu Wen, Haizheng Hong, Sijing Kang, Peng Jiang, Shanshan Lin, Wen Lin, Dalin Shi, Xiaolin Li   +8 more
wiley   +1 more source

A General Approach for the Synthesis of Arylxenonium(II) Tetrafluoroborates. [PDF]

Inorg Chem
Cortés Soláns P, Bubenik ML, Lee MH, Riemann PS, Pérez-Bitrián A.   +4 more
europepmc   +1 more source

Analyzing Riemann-Liouville constraints in second-order Lagrangian fractional electrodynamic models. [PDF]

PLoS One
Alawaideh YM, Al-Khamiseh BM, Adu IK.
europepmc   +1 more source

Moments of derivatives of quadratic Dirichlet <i>L</i>-functions with prime conductor. [PDF]

Res Number Theory
Best CG.
europepmc   +1 more source