نتایج جستجو برای: positive defi nite matrix

تعداد نتایج: 1013134  

Journal: :Lecture Notes in Computer Science 2021

Decentralized finance (DeFi) has become one of the most successful applications blockchain and smart contracts. The DeFi ecosystem enables a wide range crypto-financial activities, while underlying contracts often contain bugs, with many vulnerabilities arising from unforeseen consequences composing protocols together. In this paper, we propose formal process-algebraic technique that models in ...

2017
Anjali Ganjre

Anoikis resistance (AR) is a favorable attribute exhibited by cancer cells for metastasis. Carcinoma associated Fibroblasts (CAFs) plays a crucial role in AR in various cancers. It was proved in array of studies in different cancers that there was defi nite interrelationship between CAFs and AR. But its role in OSCC is ambiguous. It is the need of the time to reveal the correlation of CAF and o...

1997
STEFAN ADAM PETER ARBENZ

We investigate algorithms for computing steady state electromagnetic waves in cavities. The Maxwell equations for the strength of the electric eld are solved by (1) a penalty method using common linear and quadratic node-based nite elements, and (2) a mixed method with linear and quadratic nite edge elements for the eld values and corresponding node-based nite elements for the Lagrange multipli...

Journal: :Automatica 2011
Ping Li James Lam Zidong Wang Paresh Date

This paper is concerned with the model reduction of positive systems. For a given stable positive system, our attention is focused on the construction of a reduced-order model in such a way that the positivity of the original system is preserved and the error system is stable with a prescribed H1 performance. Based upon a system augmentation approach, a novel characterization on the stability w...

1997
Subrata Roy

A non-linear sub-grid embedded (SGM) nite element basis is derived for generating accurate monotone solutions to a CFD weak statement algorithm. The developed theory connrms that only the second derivative (diiusion) term is appropriate for the SGM construction, which employs element-level static condensation for eeciency and consistency. In comparison to other high resolution methods, advantag...

1999
P. G. Blunden Y. Okuhara A. S. Raskin

The equations of motion for a massive spin2 Rarita-Schwinger eld in a nite-range, central, Lorentz scalar potential are developed. It is shown that the resulting density may not be everywhere positive de nite.

Journal: :Journal of neuromuscular diseases 2015
Simone Sampaolo Olimpia Farina Federica Cipullo Filomena Napolitano Teresa Esposito Luca Lombardi Giuseppe Di Iorio

members of the third generation of a late-onset Pompe disease family which counts 36 individuals. Clinical, laboratory, and GAA enzymatic and genetic studies disclosed widespread myalgias and low back pain as well as mild weakness of the pelvic girdle muscles in 5 individuals (3 females, 2 males; aged 24–30 years), 3 of whom had a slight increase in CPK. Symptom onset was during the second deca...

2000
DAVID K. MASLEN

In this paper we introduce new techniques for the eecient computation of a Fourier transform on a nite group. We use the decomposition of a group into double cosets and a graph theoretic indexing scheme to derive algorithms that generalize the Cooley-Tukey FFT to arbitrary nite groups. We apply our general results to special linear groups and low rank symmetric groups, and obtain new eecient al...

Journal: :Cerebrovascular diseases 2006
Jong S Kim Young J No

Cigarette smoking, alcohol ingestion and any regular medications including birth control pills were denied. Family history of stroke was also denied. Physical and neurological examination revealed no abnormal signs except for bilaterally decreased superfi cial sensation in the distribution from the right 2nd thoracic and left 8th cervical to bilateral 2nd lumbar segments. Laboratory results rev...

Journal: :Digestive surgery 2005
Isidoro Di Carlo Maria Antonietta Fasone Adriana Toro

fl uid content ( fi g. 2 ). This fi nding excluded the diagnosis of a hematoma and suggested the hypothesis of hydatidosis or congenital cyst of the spleen. Echinococcosis antibodies were negative so a defi nite diagnosis could not be made and surgical treatment was required. The splenectomy was performed by laparotomy. The spleen weighed 1,080 kg and the fl uid inside it was turbid and yellow ...

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