Results 111 to 120 of about 1,512,653 (346)

Formal structure of direct image of holonomic D-modules of exponential type

open access: yes, 2007
We compute formal invariants associated with the cohomology sheaves of the direct image of holonomic D-modules of exponential type. We also prove that every formal C[[t]]-modules is isomorphic, after a ramification, to a germ of formalized direct image ...
Roucairol, C.
core  

On the Rigidity and Mechanical Behavior of Triply Periodic Minimal Surfaces‐Based Lattices: Insights from Extensive Experiments and Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle   +2 more
wiley   +1 more source

Geometric Exponential Integrators [PDF]

open access: yesarXiv, 2017
In this paper, we consider exponential integrators for semilinear Poisson systems. Two types of exponential integrators are constructed, one preserves the Poisson structure, and the other preserves energy. Numerical experiments for semilinear Possion systems obtained by semi-discretizing Hamiltonian PDEs are presented.
arxiv  

Differential extension fields of exponential type [PDF]

open access: yesPacific Journal of Mathematics, 1975
The special properties of differential extension fields which can be generated by elements with logarithmic derivatives in the base field are worked out. The results are analogous to those for Kummer extensions of ordinary fields, where ntΆ roots are adjoined.
openaire   +2 more sources

Nonsmooth Multiobjective Fractional Programming with Local Lipschitz Exponential B-p,r-Invexity

open access: yesJournal of Applied Mathematics, 2013
We study nonsmooth multiobjective fractional programming problem containing local Lipschitz exponential B-p,r-invex functions with respect to η and b. We introduce a new concept of nonconvex functions, called exponential B-p,r-invex functions.
Shun-Chin Ho
doaj   +1 more source

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

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