of Pennsylvania), and can be viewed as a

**perturbation theory**of the electromagnetic quantum vacuum.This definition appears very rarely and is found in the following Acronym Finder categories:

- Science, medicine, engineering, etc.

- Abbreviation Database Surfer
- « Previous
- Next »

- Portland Tugboat & Ship Docking Company
- Pacific Telephone and Telegraph
- Philippine Telegraph and Telephone (Makati, Philippines)
- Potentiated Twitch Torque (physiology)
- Platinum Plus
- Previously Tested Positive
- Previously Tested Negative
- Per-Tone Echo Cancellation
- Public Transportation Information Sharing and Analysis Center
- Post-Transplantation Lymphoproliferative Disorders

- Physical Therapy and Occupational Therapy
- Pre-Tracking Static Frequency Divider
- Prescription Treatment University (Whitmire Micro-Gen)
- Prothrombin Time after Heparin Removal (pathology)
- Prothrombin Time and International Normalized Ratio (blood test)
- Physical Teardown/Logistic Demonstration
- Penetrant Testing/Liquid Penetrant
- Physical Teardown/Maintenance Evaluation
- Platinum/Palladium (photographic printing process)
- Positive Test/Regressive Test

of Pennsylvania), and can be viewed as a **perturbation theory** of the electromagnetic quantum vacuum.

Using Le Verrier's **perturbation theory** to speed up time-consuming computer calculations of many possible configurations of planetary orbits, the HEK team showed that the observed variations can be best explained by an unseen planet about the mass of Saturn that orbits the host star every 57 days.

The approximations approach is founded on asymptotic analysis and **perturbation theory**, which deal with the study of applied mathematical systems in limiting cases.

CONTROL TERM FOR HAMILTONIAN OF ENCELADUS An approximate model for the 3:1 secondary resonances for synchronous rotation in the spin-orbit problem using the standard techniques of Hamiltonian **perturbation theory** (Sussman & Wisdom 2001) was developed by Wisdom (2004).

Kato, **Perturbation theory** for linear operator, Springer-Verlag New York Inc.

In the zeroth-order of the **perturbation theory** the eigenfunctions [phi](p) are plane waves, and the matrix elements [P.

In this section we consider componentwise **perturbation theory** of singular vectors (or equivalently eigenvectors of symmetric matrices) according to [17], since we are interested not only in the size of the componentwise deviation of the perturbed singular vector from the unperturbed but also in its sign.