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Topic: Delta operator

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	Delta operator - Wikipedia, the free encyclopedia
		In mathematics, a delta operator is a shift-equivariant linear operator Q on the vector space of polynomials in a variable x that reduces degrees by one.
		That the operator reduces degrees by one means that if f is a polynomial of degree n, then Qf is either a polynomial of degree n − 1, or, in case n = 0, Qf is 0.
		In cybernetics, the term "discrete-time delta operator" (δ) is generally taken to mean a difference operator constructed from the discrete-time shift-operator (q) using the Euler approximation, δ = (q − 1)/T, where T is the discrete sample time.
	en.wikipedia.org /wiki/Delta_operator (390 words)

	Dr Paul McKenna - PhD Thesis page
		Interest in the delta operator as a tool in the development of robust approaches to modelling and control has been revived in the last decade, principally following the work of Goodwin (1985).
		In this thesis, a delta operator Simplified Refined Instrumental Variable (SRIV) approach to model estimation is employed, together with model order identification tools, to provide delta operator models for use in control and forecasting.
		The development of a recursive delta operator Kalman filter is presented and incorporated within a forecasting framework.
	www.es.lancs.ac.uk /cres/staff/pmckenna/thesis.html (336 words)

	Delta Vacations - Vacation packages to Las Vegas Hawaii Orlando Florida Walt Disney World Jamaica Aruba Bahamas ...
		Regular scheduled flights have been selected for the vacation package; however, Delta Vacations does not guarantee any specific flight schedule or equipment and will not be held responsible for any changes that result in an increase in airfare or deviation in original flight itinerary.
		Delta Vacations is not liable for any changes in the reservation that are beyond our control and are caused by, due to, or are attributable to the Supplier.
		Under no circumstances is the Operator to be construed as a carrier under contract for safe carriage of the passengers or his or her baggage and belongings.
	www.deltavacations.com /generalrest.aspx (2782 words)

	Differential operator - Wikipedia, the free encyclopedia
		In mathematics, a differential operator is an operator defined as a function of the differentiation operator.
		This operator is central to Sturm-Liouville theory where the eigenfunctions (analogues to eigenvectors) of this operator are considered.
		The subring of operators that are polynomials in D with constant coefficients is, by contrast, commutative.
	en.wikipedia.org /wiki/Differential_operator (806 words)

	operators (Site not responding. Last check: 2007-10-20)
		Operators are a form of functions which acts on one or two values and return a value.
		An arithmetic operator, operates on one or two numeric value and returns a numeric value.
		A conditional operator operates on boolean expression and each boolean expression may contain relational operator or conditional operator, thus enabling us to write complex decision logics.
	zohocreator.com /help/deluge/operators.html (355 words)

	FSG Presents - Mogadishu, Somali, October 3, 1993
		The author’s basic scenario assumes that the initial stage of the mission is complete: The Delta operators have captured and secured the targets, who have been loaded on the vehicles and sent off on their way back to base.
		At the beginning of play, Rangers and Delta Operators (and SEAL and air force personnel as well, if you have the figures) are on the ground, trying to make their way to secure the crash site and prepare for extraction.
		Delta operators and the Ranger Command unit are in front of it.
	www.flagshipgames.com /mogadishu.htm (2804 words)

	How to Join Delta Force - WikiHow (Site not responding. Last check: 2007-10-20)
		Ranger Battalion is a Special Operations unit that you can go into as a low ranking soldier and will better prepare you for the trials that you will face on the long road to becoming a Delta Force operator.
		Delta Force conducts a wide variety of direct action and covert operations around the globe that deal with protecting American interests.
		This means that you, as a Delta Force operator working in a unit that "does not exist", should understand that you will not get the same operational support that the regular Army gets.
	www.wikihow.com /Join-Delta-Force (785 words)

	Delta Virtual - About Us
		Delta introduced the first domestic jet service on 18 September 1959 with the DC-8, which it was the first operator of.
		Delta was also the largest operator of the L-1011, with which it began transatlantic service in 1978.
		Delta announced a major restructuring of its operations in September 2004, which included closing its Dallas/Ft. Worth hub on 31 January 2005, and filed for bankruptcy in September 2005.
	www.simairline.net /delta/about_us.html (487 words)

	Symbol Australia Between the Lines January 2002 - Delta Car Rentals (Site not responding. Last check: 2007-10-20)
		Growing from humble beginnings to become Australia's third-largest rental fleet operator, Delta Car Rentals is a success story that continues to evolve.
		Effectively, 90 capital city Accor hotels in Australia are now acting as booking branches, with direct-link green phones installed in the lobbies for both houseguests and the general public, who can walk in from the street and order a car to be delivered to the hotel and the paperwork completed on the spot.
		"Delta was primarily an off-airport operator for the leisure market, but now with our airport locations and the business market links with Accor, we are raising service levels to our customers while becoming a serious new player in the business travel market," he said.
	legacy.symbol.com /australia/news/btl_2002_01_delta.html (647 words)

	And while I'm at it: eigenfunction of position
		The way I've understood it is that the components of the matrix that is used to represent the position operator in the position basis are the "values" of the Dirac delta functional: anddelta;(x,x').
		When the matrix operates on a function, in the position basis, it is an integration over one of the two variables, x or x' (conventionally x'), analogous to the summation over one of the two indices of a matrix component when a discrete matrix multiplies a discrete vector.
		Since the matrix is diagonal in the position basis, each row or column of the matrix is a Dirac delta function: anddelta;(x - x'), where one of the two variables, x or x' (conventionally x'), is held fixed and treated as a constant.
	www.physicsforums.com /showthread.php?t=34156 (1042 words)

	Cruise Ship Profiles Cruise Lines - Delta Queen Steamboat Company
		Now, as far as the DELTA QUEEN is concerned, she was born a river boat, but the Mississippi wasn’t her river.
		I guess in her way, the old DELTA QUEEN is as much of a character as was old Mary Greene, one of America’s first female river pilots, and for a time the only woman to own and operate a fleet of steamboats.
		But you must understand that the DELTA QUEEN is an American treasure....sure, Delta Queen could have ripped out walls to double the floor space of the cabins, but getting extra creature comforts would have compromised the total effect that the line is trying to achieve....simulating a deluxe old style river boat trip.
	www.cruiseserver.net /VacationWired/ships/dq_delta.asp (2264 words)

	AA :: Index
		Their operators are simply recommended by word-of-mouth, then they go in for an interview.
		"Delta" has a rigorous selection process combined with a 6 month Operator Training Course which ensures that everyone has the "basic" skills they need to be a "Delta" operator.
		How the team is broken down from there is entirely dependent on the mission, standard operating procedure for that team, and how many operators are actually on the team (doctrinally the number is 12, however due to SF being understrength it's usually more like 8-9 operators per team).
	forum.americasarmy.com /viewtopic.php?t=239451&page=1 (3516 words)

	DF Xtreme
		As a member of the elite Delta Force re-deploy in over 20 graphically enhanced single player missions – the best of the best updated from the original game Delta Force released in 1998.
		Delta Force Xtreme™ was released to the general public in April 2005.
		Delta Force 2 was the updated title the online community really wanted and not just Delta Force 1.
	www.df-reloaded.com /xtreme.htm (469 words)

	Dramatic Behind-the-Scenes Chronicle of Delta Army - Find Articles
		Modeled along the lines of the British commando organization, the Special Air Service (SAS), Delta is a compact, highly skilled and versatile unit that is able to undertake and execute the difficult and unusual missions that are outside the realm of normal military capability.
		Much has been written about the exploits of the Delta operators, and movies have been made showing this elite unit in action, all of it pure speculation.
		Inside Delta Force is a well-written, sometimes narcissistic account of Haney's tour of duty as a Delta operator.
	www.findarticles.com /p/articles/mi_qa3723/is_200605/ai_n16350907 (647 words)

	[No title]
		Since then, the relativistic Schr\"odinger operators have received a considerable attention, and there has been a substantial amount of literature for the relativistic Schr\"odinger operators from various view points.
		The kinetic energy part of the relativistic Schr\"odinger operator is given by % $$ \sqrt{-\Delta + m^2 \,}, $$ % where $m$ is a nonnegative constant.
		The symbol of the operator $\sqrt{-\Delta}$ is given by $\xi$, which is singular at the origin.
	www.ma.utexas.edu /mp_arc/papers/00-263 (1579 words)

	Dr Paul McKenna - PhD project
		The identification and estimation of delta operator models, both single-input single-output (SISO) and multi-input multi-output (MISO), using Simplified Refined Instrumental Variable (SRIV) algorithms developed by Dr Wlodek Tych.
		Implementation of the delta operator PIP controller upon a coupled drives rig, under the supervision of Roger Dixon.
		Delta operator forecasting and prediction with hydrological applications.
	www.es.lancs.ac.uk /cres/staff/pmckenna/phd.html (155 words)

	hdf5fsmodule: varvstack< T, maxsize, delta > Class Template Reference
		References varvstack< T, maxsize, delta >::heap, varvstack< T, maxsize, delta >::local, and varvstack< T, maxsize, delta >::size.
		Referenced by varvstack< T, maxsize, delta >::operator and(), varvstack< T, maxsize, delta >::operator[](), varvstack< T, maxsize, delta >::resize(), varvstack< T, maxsize, delta >::varvstack(), and varvstack< T, maxsize, delta >::~varvstack().
		Referenced by varvstack< T, maxsize, delta >::operator and(), varvstack< T, maxsize, delta >::operator[](), and varvstack< T, maxsize, delta >::resize().
	www.cacr.caltech.edu /projects/ARCS/hdf5fs/hdf5fsmodule/html/classvarvstack.html (345 words)

	Generalizations of the umbral calculus
		In particular, any shift-invariant operator of degree 1 (delta operator) has a special sequence associated with it---satisfying a type of binomial theorem.
		Rota's operator approach to the calculus of finite difference can be thought of as a systematic study of shift-invariant operators on the algebra of polynomials.
		The expansion theorem [67, Theorem 2] states that all shift-invariant operators can be written as formal power series in the derivative D.
	www.win.tue.nl /~sandro/hypersurvey/node10.html (505 words)

	Historical Building Tour
		Myrtle was the telephone operator for Delta for many years.
		In the early 1920's the Delta Women's Club determined their growing community needed a city park.
		In 1930, the Delta Lions Club added housing facilities for a zoo, which closed in the late 60's.
	www.deltacolorado.org /histtour4.html (249 words)

	Delta Force Task Force Dagger - Special Forces
		The U.S. Army's 1st Special Forces Operational Detachment-Delta (SFOD-D) is one of the nation's principle units tasked with counter-terrorist, close quarter combat and hostage rescue operations outside the United States.
		It is organized into three operating squadrons, all of which (A, B, and C) are subdivided into small groups known as troops.
		The vast majority of the unit operatives come from the United States' Ranger battalions and Special Forces groups, however candidates are drawn from all branches of the Army, including the Army Reserve and National Guard.
	www.novalogic.com /games/DFTFD/specops_DF.htm (181 words)

	NOTD Aftermath (Site not responding. Last check: 2007-10-20)
		The 1st Special Forces Operational Detachment-Delta (Airborne) (1st SFOD-D (A)), commonly known as Delta within the U.S. Army or Delta Force by the general public, (and known in the Pentagon officially as the Combat Applications Group) is a Special Operations Force (SOF) of the Joint Special Operations Command (JSOC).
		Delta Force is believed to conduct missions similar to those regularly attributed to the British Special Air Service (SAS), after which Delta Force was modeled
		The Delta Operator employs camouflage and acquires better proficiencies.
	www.notd-aftermath.com /deltaoperator.php (310 words)

	Delta Force: Black Hawk Down - Official Web Site
		Also known as “Delta Force”, this elite unit is still not officially acknowledged by the United States Government.
		Their role in Somalia, separate from the humanitarian mission, was to capture Aidid and his lieutenants who were considered the greatest threat to peace in the region.
		Delta’s tactics are so refined that in Mogadishu, they were able to secure an entire building and capture twenty-four Habr Gedir clan officials, many of them armed, without inflicting a single death.
	www.novalogic.com /games/DFBHD/characters.html (167 words)

	Delta Stock Inc.
		Now you have the opportunity to get round-the-clock access to real-time information via the WAP-version of our platform from your cellular phone, as long as it is capable of working in WAP mode (detailed information about connecting and adjusting your cellular phone can be obtained directly from your operator).
		Delta Trading WAP gives you invaluable mobility and is alternative to the other ways of logging into our system when you are away from a computer.
		You have fast wireless data transfer and access to all basic features of our platform wherever you go and within the coverage of your cellular phone.
	www.deltastock.com /common/dtwap.asp (135 words)

	[No title]
		If $H$ is a closed operator on a Hilbert space $\cK$, by $\rho(H)$ we denote the resolvent set of $H$.
		\end{equation} By definition the spectrum $\spec(M)$ of the function $M$ coincides with the set of all $\lambda\in\bbC$ such that either the operator $M(\lambda)$ is not invertible or the inverse $[M(\lambda)]^{-1}$ is an unbounded operator.
		Under Hypothesis \ref{ABCdiag}, a bounded operator $X$ from $\cH_A$ to $\cH_C$ is said to be an operator solution to \eqref{Ric0} if $\Ran(X)\subset\Dom(C)$ and \eqref{Ric0} holds as an operator equality.
	www.ma.utexas.edu /mp_arc/html/papers/02-413 (1130 words)

	Delta Force - SpecEncycloforum (Site not responding. Last check: 2007-10-20)
		This DELTA operator was recently killed in Iraq.
		Every time something Delta or SAS comes even close opsec and persec is claimed.
		Never heard of a forum being closed down by US government except for Now that's fucked up and that was for the porn on the site.
	www.specencyclopaedia.com /forum/showthread.php?p=383 (297 words)

	Inside Delta Force (Site not responding. Last check: 2007-10-20)
		So begins Eric L. Haney's Inside Delta Force, the only book ever written by a Delta Force Operator about the elite American counter-terrorism unit so secret the Army won't admit it still exists.
		The Delta Force Operator is one of the deadliest marksmen in the world.
		Part war story and part Marcus Aurelius, Inside Delta Force is an intensely thoughtfut and thought-provoking look at the making of the men who stand between us and our enemies.
	www.erichaney.com /id3.html (225 words)

	Delta College
		Delta College is a responsive, dynamic community college.
		We educate, inspire, challenge and support a diverse community of learners to achieve academic, professional and personal excellence.
		Delta College is our communities' first choice to learn, work, and grow.
	www.delta.edu (112 words)

	Research
		He and his co-researchers also defined various symmetries for delta operator formulated 2-D systems and developed algorithms for low sensitivity 2-D filter designs.
		The 2-D delta operator based symmetry theory is shown to unify 2-D continuous and discrete time symmetries.
		He is presently investigating the circuit paradigm for nano-electronics by studying the connection between CNN and nano-electronic circuits and systems.
	www.csulb.edu /~hreddy/Bio.htm (1372 words)

	And while I\'m at it: eigenfunction of position - Advanced Physics Forums (Site not responding. Last check: 2007-10-20)
		A delta function is an eigenfunction of the position operator because when you apply this operator on that function you get the same function multiplied by a number.
		How is it that x applied to the delta function returns the delta function times a constant.
		Ah, it\'s just a mathematical way of saying the two delta functions are equal.
	www.advancedphysics.org /forum/showthread.php?t=740 (364 words)

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