Image of period mapping for simple singularities

1988 ◽  
pp. 294-308
Author(s):  
A. N. Varchenko
Keyword(s):  
Period Mapping ◽  
Simple Singularities

scholarly journals Simple singularities and integrable hierarchies

2007 ◽  
pp. 173-201 ◽  
Author(s):  
Alexander B. Givental ◽  
Todor E. Milanov
Keyword(s):  
Integrable Hierarchies ◽  
Simple Singularities

scholarly journals Bifurcations in stochastic dynamical systems with simple singularities

1989 ◽  
Vol 31 (1) ◽  
pp. 71-88 ◽  
Author(s):  
Stanisa̵w Janeczko ◽  
Eligiusz Wajnryb
Keyword(s):  
Dynamical Systems ◽  
Stochastic Dynamical Systems ◽  
Simple Singularities

Deformations of simple singularities

1980 ◽  
pp. 121-151 ◽  
Author(s):  
Peter Slodowy
Keyword(s):  
Simple Singularities

scholarly journals Root systems and quotients of deformations of simple singularities

2019 ◽  
Vol 526 ◽  
pp. 382-422
Author(s):  
Antoine Caradot
Keyword(s):  
Root Systems ◽  
Simple Singularities

Existence of Hypersurfaces with Prescribed Simple Singularities

2003 ◽  
Vol 31 (1) ◽  
pp. 335-356 ◽  
Author(s):  
Eric Westenberger
Keyword(s):  
Simple Singularities

Language and Motor Mapping During Resection of Brain Arteriovenous Malformations: Indications, Feasibility, and Utility

Neurosurgery ◽  
2011 ◽  
Vol 68 (3) ◽  
pp. 744-752 ◽  
Author(s):  
Andreu Gabarrós ◽  
William L Young ◽  
Michael W McDermott ◽  
Michael T Lawton
Keyword(s):  
Motor Cortex ◽  
Arteriovenous Malformations ◽  
Venous Drainage ◽  
Extent Of Resection ◽  
Neurological Deficits ◽  
Language Mapping ◽  
Motor Mapping ◽  
Intraoperative Mapping ◽  
Tissue Handling ◽  
Period Mapping

Abstract BACKGROUND: Microsurgical resection of arteriovenous malformations (AVMs) located in the language and motor cortex is associated with the risk of neurological deterioration, yet electrocortical stimulation mapping has not been widely used. OBJECTIVE: To demonstrate the usefulness of intraoperative mapping with language/motor AVMs. METHODS: During an 11-year period, mapping was used in 12 of 431 patients (2.8%) undergoing AVM resection (5 patients with language and 7 patients with motor AVMs). Language mapping was performed under awake anesthesia and motor mapping under general anesthesia. RESULTS: Identification of a functional cortex enabled its preservation in 11 patients (92%), guided dissection through overlying sulci down to the nidus in 3 patients (25%), and influenced the extent of resection in 4 patients (33%). Eight patients (67%) had complete resections. Four patients (33%) had incomplete resections, with circumferentially dissected and subtotally disconnected AVMs left in situ, attached to areas of eloquence and with preserved venous drainage. All were subsequently treated with radiosurgery. At follow-up, 6 patients recovered completely, 3 patients were neurologically improved, and 3 patients had new neurological deficits. CONCLUSION: Indications for intraoperative mapping include preoperative functional imaging that identifies the language/motor cortex adjacent to the AVM; larger AVMs with higher Spetzler-Martin grades; and patients presenting with unruptured AVMs without deficits. Mapping identified the functional cortex, promoted careful tissue handling, and preserved function. Mapping may guide dissection to AVMs beneath the cortical surface, and it may impact the decision to resect the AVM completely. More conservative, subtotal circumdissections followed by radiosurgery may be an alternative to observation or radiosurgery alone in patients with larger language/motor cortex AVMs.

Seismic site classification and site period mapping of Chennai City using geophysical and geotechnical data

2010 ◽  
Vol 72 (3) ◽  
pp. 152-168 ◽  
Author(s):  
R. Uma Maheswari ◽  
A. Boominathan ◽  
G.R. Dodagoudar
Keyword(s):  
Site Classification ◽  
Geotechnical Data ◽  
Period Mapping ◽  
Chennai City ◽  
Site Period

Uniqueness Theorem of $${\mathcal{W}}$$ W -Constraints for Simple Singularities

2013 ◽  
Vol 103 (12) ◽  
pp. 1329-1345 ◽  
Author(s):  
Si-Qi Liu ◽  
Di Yang ◽  
Youjin Zhang
Keyword(s):  
Uniqueness Theorem ◽  
Simple Singularities
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