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Mathematical problem solved in 1967
In mathematics, the common fixed point problem is the conjecture that, for any two continuous functions that map the unit interval into itself and commute
Common_fixed_point_problem
Computer format for representing real numbers
In computing, fixed-point is a method of representing fractional (non-integer) numbers by storing a fixed number of digits of their fractional part. Dollar
Fixed-point_arithmetic
Higher-order function Y for which Y f = f (Y f)
In combinatory logic for computer science, a fixed-point combinator (or fixpoint combinator) is a higher-order function (i.e., a function that takes a
Fixed-point_combinator
Mathematical property
has the fixed-point property if every morphism (i.e., every function) f : A → A {\displaystyle f:A\to A} has a fixed point. The most common usage is when
Fixed-point_property
Computing the fixed point of a function
Fixed-point computation refers to the process of computing an exact or approximate fixed point of a given function. In its most common form, the given
Fixed-point_computation
Mathematical proof at least partially generated by computer
been involved in some way. See the main articles for details. Common fixed point problem, 1967 Four color theorem, 1976 Mitchell Feigenbaum's universality
Computer-assisted_proof
Process of achieving a goal by overcoming obstacles
finding solutions; problem-solving impediments include confirmation bias, mental set, and functional fixedness. The term problem solving has a slightly
Problem_solving
American mathematician
Boyce's 1967 doctoral thesis addressed the common fixed point problem, resolving an unsolved mathematical problem first posed 13 years earlier by demonstrating
William_Martin_Boyce
common fixed point problem conjecture to be false by providing examples of commuting functions on a closed interval that do not have a common fixed point
1967_in_science
Root-finding algorithm
In numerical analysis, fixed-point iteration is a method of computing fixed points of a function. More specifically, given a function f {\displaystyle
Fixed-point_iteration
Distance estimation problems in computational geometry
to as closest point problems, although the term "closest point problem" is also used synonymously to the nearest neighbor search. A common trait for many
Proximity_problems
Theorem in order and lattice theory
its most general form, and so the theorem is often known as Tarski's fixed-point theorem. Some time earlier, Knaster and Tarski established the result
Knaster–Tarski_theorem
Problem in combinatorial optimization
name from the problem faced by someone who is constrained by a fixed-size knapsack and must fill it with the most valuable items. The problem often arises
Knapsack_problem
Problem that is difficult or impossible to solve
recognize. It refers to an idea or problem that cannot be fixed, where there is no single solution to the problem; "wicked" does not indicate evil, but
Wicked_problem
Determining where a point is in relation to a coplanar polygon
In computational geometry, the point-in-polygon (PIP) problem asks whether a given point in the plane lies inside, outside, or on the boundary of a polygon
Point_in_polygon
Computer approximation for real numbers
computing, floating-point arithmetic (FP) is arithmetic on subsets of real numbers formed by a significand (a signed sequence of a fixed number of digits
Floating-point_arithmetic
Type of train guidance mechanism
V-crossing. This problem can limit the maximum speed of vehicles using the crossing. In addition, the open gap at a fixed V-crossing forms a weak point on the railway
Swingnose_crossing
Thought experiment
philosophy and mathematics, Newcomb's problem, also known as Newcomb's paradox, is a thought experiment posing a decision problem in which a player must decide
Newcomb's_problem
Optimization problem in computer science
search, is the optimization problem of finding the point in a given set that is closest (or most similar) to a given point. Closeness is typically expressed
Nearest_neighbor_search
Problem in process of sharing surplus
non-cooperative game. The most common form of such game is called sequential bargaining. A two-person bargain problem consists of: A feasibility set F
Cooperative_bargaining
Thought experiment
this problem highlights the importance of common knowledge. Some authors also refer to this as the Two Generals' Paradox, the Two Armies Problem, or the
Two_Generals'_Problem
Puzzle in logic and mathematics
reasoning, "A" is any fixed possible value of the amount of money in the first envelope. This interpretation of the two envelopes problem appears in the first
Two_envelopes_problem
Computer bugs related to the year 2000
some countries, but not all, had checked, fixed, and upgraded their computer systems to address the problem. U.S. President Bill Clinton, who organized
Year_2000_problem
Unsolved problem in computer science
generalized version of Sudoku, as any fixed size Sudoku has only a finite number of possible grids. In this case the problem is in P, as the answer can be found
P_versus_NP_problem
Catalog of information security problems
The Common Vulnerabilities and Exposures (CVE) system, originally Common Vulnerability Enumeration, provides a reference method for publicly known information-security
Common Vulnerabilities and Exposures
Common_Vulnerabilities_and_Exposures
NP-hard problem in combinatorial optimization
home or office and visits a fixed number of locations before returning to the start. In the following decades, the problem was studied by many researchers
Travelling_salesman_problem
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer
List of unsolved problems in mathematics
List_of_unsolved_problems_in_mathematics
Task of computing complete subgraphs
clique decision problem is NP-complete (one of Karp's 21 NP-complete problems). The problem of finding the maximum clique is both fixed-parameter intractable
Clique_problem
Theorem in differential topology
even-dimensional sphere into itself has either a fixed point or a point that maps onto its own antipodal point. This can be seen by transforming the function
Hairy_ball_theorem
Type of camera lens
another to bring the image into sharp focus. This design is common in CCTV cameras installed in fixed positions where the viewing angle is set once during installation
Varifocal_lens
Problem in computer science
solve the halting problem in every possible case. The halting problem is a decision problem about properties of computer programs on a fixed Turing-complete
Halting_problem
Problem in physics and celestial mechanics
proportionately along a fixed straight line. The Euler's three-body problem is the special case in which two of the bodies are fixed in space (this should
N-body_problem
Solutions are encoded as fixed points of the mapping. Although originally conceived as a general method for solving the phase problem, the difference-map algorithm
Difference-map_algorithm
Bicycle that has a drivetrain with no freewheel mechanism
develop a good pedalling style. In the UK until the 1950s it was common for riders to use fixed-gear bicycles for time trials. The 1959 British 25 mile time
Fixed-gear_bicycle
Arrangement of steering linkages
axles arranged as radii of circles with a common centre point. As the rear wheels are fixed, this centre point must be on a line extended from the rear
Ackermann_steering_geometry
Statement that players know and also know that other players know (ad infinitum)
a fixed-point definition of common knowledge can be given. Intuitively, common knowledge is thought of as the fixed point of the "equation" C G φ = [
Common_knowledge_(logic)
Number functioning as an exponent
Certain processors, particularly DSPs common in the embedded system industry, have built in support for the fixed-point arithmetic, such as Q and IQ formats
Scale factor (computer science)
Scale_factor_(computer_science)
Open problem on 3x+1 and x/2 functions
Unsolved problem in mathematics For even numbers, divide by 2; For odd numbers, multiply by 3 and add 1. With enough repetition, do all positive integers
Collatz_conjecture
Fastest curve descent without friction
influence of a uniform gravitational field to a given end point in the shortest time. The problem was posed by Johann Bernoulli in 1696 and famously solved
Brachistochrone_curve
Geometry problem about finding touching circles
to Apollonius's problem. Two distinct geometrical objects are said to intersect if they have a point in common. By definition, a point is tangent to a
Problem_of_Apollonius
Mathematical problem of placing fuel depots
only carry a fixed and limited amount of fuel, but it can leave fuel and collect fuel at fuel dumps anywhere in the desert. The problem first appeared
Jeep_problem
Resource problem in machine learning
different machine. More generally, it is a problem in which a decision maker iteratively selects one of multiple fixed choices (i.e., arms or actions) when
Multi-armed_bandit
The second way to solve the problem is to automatically initialize all locations to some fixed, predictable value at the point at which they are defined
Definite_assignment_analysis
Geometric technique for designing mechanical linkages
be constructed from any point on the two perpendicular bisectors as the fixed pivots and A and B as the moving pivots. The point P is clearly special, because
Burmester's_theory
Equations modelling predator–prey cycles
above will always differ. Hence the fixed point at the origin is a saddle point. The instability of this fixed point is of significance. If it were stable
Lotka–Volterra_equations
Decimal representation of real numbers in computing
over decimal fixed-point and integer representation is that it supports a much wider range of values. For example, while a fixed-point representation
Decimal_floating_point
Issue resulting in miscalculation of leap years
that the problem was caused by the internal clock driver written by Freescale and the way the device handles a leap year. It automatically fixed itself
Leap_year_problem
Difficulties arising when analyzing data with many aspects ("dimensions")
combinatorics, machine learning, data mining and databases. The common theme of these problems is that when the dimensionality increases, the volume of the
Curse_of_dimensionality
Triangle center minimizing sum of distances to each vertex
triangle to the point is the smallest possible or, equivalently, the geometric median of the three vertices. It is so named because this problem was first raised
Fermat_point
Mathematical proposition or corollary
off a segment, AM, from a fixed straight line, AX, given in position, another fixed straight line BY, and a point B fixed on it can be determined, such
Porism
Overuse of a shared resource
also pointed out the problem of individuals acting in rational self-interest by claiming that if all members in a group used common resources for their
Tragedy_of_the_commons
Concept in probability theory and gambling
concept was initially stated: A persistent gambler who raises his bet to a fixed fraction of the gambler's bankroll after a win, but does not reduce it after
Gambler's_ruin
Optimization problem
few of the more common objectives are: Minimize the global transportation cost based on the global distance travelled as well as the fixed costs associated
Vehicle_routing_problem
brass cartridge cases, and which usually had the propellant and projectile fixed together as a unit for faster handling and loading. For instance, Britain
Glossary of British ordnance terms
Glossary_of_British_ordnance_terms
Mathematical puzzle
jug problems". Cognitive Psychology. 8 (2): 191–216. doi:10.1016/0010-0285(76)90023-2. S2CID 54388726. Rem, Martin; Choo, Young il (1982). "A fixed-space
Water_pouring_puzzle
Branch of logic
NL, the problems solvable in nondeterministic logarithmic space. In the presence of a linear order, first-order logic with a least fixed point operator
Finite_model_theory
Optimization problem
for some fixed p {\displaystyle p} ). In the facility location problem that we are constructing, we permit facilities to be placed at any point within this
Optimal_facility_location
Simple polynomial map exhibiting chaotic behavior
be calculated without problems not only with floating point but also with fixed point, and can enjoy the advantages of fixed point arithmetic. It has been
Logistic_map
Mathematical problem
problem (also referred to as the Frobenius coin problem or Frobenius problem, after the mathematician Ferdinand Frobenius) is a mathematical problem that
Coin_problem
they rarely cause serious medical problems. Sunflowers do not always point to the Sun. Flowering sunflowers face a fixed direction (often east) all day long
List of common misconceptions about science, technology, and mathematics
List_of_common_misconceptions_about_science,_technology,_and_mathematics
32-bit computer number format
values by using a floating radix point. A floating-point variable can represent a wider range of numbers than a fixed-point variable of the same bit width
Single-precision floating-point format
Single-precision_floating-point_format
Problem in probability theory
In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following
Coupon_collector's_problem
Measure of computer performance
for intermediate results). Floating-point representations can support a much wider range of values than fixed-point, with the ability to represent very
Floating point operations per second
Floating_point_operations_per_second
Theorem on triangulation graph colorings
combinatorial result on colorings of triangulations, analogous to the Brouwer fixed point theorem, which is equivalent to it. It states that every Sperner coloring
Sperner's_lemma
Conflict of interest when one person acts on another's behalf
The principal–agent problem (often abbreviated agency problem) refers to the conflict in interests and priorities that arises when one person or entity
Principal–agent_problem
Method for the construction of fractals
iterations of the operator are shown, and then the final image is of the fixed point, the final fractal. Early examples of fractals which may be generated
Iterated_function_system
Unsolved problem in extremal graph theory
{\displaystyle t} is a fixed constant, in the limit as n {\displaystyle n} goes to infinity. For s = t = 2 {\displaystyle s=t=2} this problem is the same as determining
Zarankiewicz_problem
Plant with a growth habit of trailing or scandent stems or runners
downward-pointing bristles to aid their grip. Hops (used in flavoring beer) are a commercially important example of a bine. Compare "woodbines", a common name
Vine
Area of discrete mathematics
called the independent set problem (NP-complete). Still another such problem, the minor containment problem, is to find a fixed graph as a minor of a given
Graph_theory
Points given to compensate for the disadvantage of playing second
under the Japanese rules. By far the most common type of komi is a fixed compensation point system. A fixed number of points, determined by the Go organization
Komi_(Go)
Harmful repetitive gambling
Problem gambling may be diagnosed as a mental disorder according to DSM-5 if certain diagnostic criteria are met. Pathological gambling is a common disorder
Problem_gambling
Mathematical problem
problem is to find the curve that generates the solid that experiences less resistance than any other solid having a fixed axial length L and a fixed
Newton's minimal resistance problem
Newton's_minimal_resistance_problem
Coordinate system using perpendicular axes
specifies each point uniquely by a pair of real numbers called coordinates, which are the signed distances to the point from two fixed perpendicular oriented
Cartesian_coordinate_system
Declarative logic programming language
rules of the program in a single step. The least-fixed-point semantics define the least fixed point of T to be the meaning of the program; this coincides
Datalog
Academic method for creative thinking
which is also known as Theory of Inventive Problem Solving (TIPS): that inventive solutions share common patterns. Focusing not on what makes inventive
Systematic_inventive_thinking
Combinatorial optimization problem
graph theory, the metric k-center problem or vertex k-center problem is a classical combinatorial optimization problem studied in theoretical computer science
Metric_k-center
Replacing a number with a simpler value
integer or fixed-point arithmetic; when computing mathematical functions such as square roots, logarithms, and sines; or when using a floating-point representation
Rounding
identities correspond to a fixed pattern that instantaneously disappears with the passage of time, and "Closed individualism", the common view that personal identities
List of philosophical problems
List_of_philosophical_problems
Computer arithmetic error
the behavior for basic use of mathematic operators is naturally fixed; however, this fixed behavior differs between a program built in 'debug' mode and one
Integer_overflow
Mathematical proof technique
known as root flipping, is a proof technique. It is most often used for problems in which a relation between two integers is given, along with a statement
Vieta_jumping
Combinatorial optimization problem
assignment problem is a fundamental combinatorial optimization problem. In its most general form, the problem is as follows: The problem instance has
Assignment_problem
Concept in game theory
In game theory, a focal point (or Schelling point) is a solution that people tend to choose by default in the absence of communication in order to avoid
Focal_point_(game_theory)
Simple curve of Euclidean geometry
centre of the circle and a point on the circle. Place the fixed leg of the compass on the centre point, the movable leg on the point on the circle and rotate
Circle
Solution concept of a non-cooperative game
against those of the others." Putting the problem in this framework allowed Nash to employ the Kakutani fixed-point theorem in his 1950 paper to prove existence
Nash_equilibrium
Market failure benefitting non-paying users
economics, the free-rider problem is a type of market failure that occurs when those who benefit from resources, public goods and common pool resources do not
Free-rider_problem
Situation where total gains match total losses
minimize the maximum expected point-loss independent of the opponent's strategy. This leads to a linear programming problem with the optimal strategies
Zero-sum_game
Planar maps require at most four colors
are adjacent if their respective closures have a common point that is not a corner of the map. A point is a corner of a map if and only if it belongs to
Four_color_theorem
Optimization problem in mathematics
without overlap between any rectangles (small or large). Common constraints of the problem include limiting small rectangle rotation to 90° multiples
Rectangle_packing
Process of changing installed software to newer versions
hotfix must be weighed against the risk of not applying it. The problem to be fixed might be so critical that inaction is riskier than the potential
Software_update
Negotiation between a buyer and seller over the price and nature of their transaction
disappeared in parts of the world where retail stores with fixed prices are the most common place to purchase goods. However, for expensive goods such
Bargaining
Numerical approximation algorithm
heuristic-based iterative methods are also common. In contrast, direct methods attempt to solve the problem by a finite sequence of operations. In the
Iterative_method
IEEE standard for floating-point arithmetic
many problems found in the diverse floating-point implementations that made them difficult to use reliably and portably. Many hardware floating-point units
IEEE_754
18030 do not. Fixed-size characters can be helpful, but even if there is a fixed byte count per code point (as in UTF-32), there is not a fixed byte count
Comparison of Unicode encodings
Comparison_of_Unicode_encodings
Problem of finding a cycle through all vertices of a graph
solution for the problem. The weak point of this approach is the required amount of energy which is exponential in the number of nodes. The problem of finding
Hamiltonian_path_problem
Mathematical-logic system
2017). "Fixed-Point Combinators in JavaScript". Bene Studio. Medium. Retrieved 2 August 2020. "CS 6110 S17 Lecture 5. Recursion and Fixed-Point Combinators"
Lambda_calculus
Symbol representing a mathematical object
variable may represent an unspecified number that remains fixed during the resolution of a problem; in which case, it is often called a parameter. A variable
Variable_(mathematics)
128-bit computer number format
as double), nor is it common. As of C++23, the C++ language defines a <stdfloat> header that contains fixed-width floating-point types. Implementations
Quadruple-precision floating-point format
Quadruple-precision_floating-point_format
Satellite with an orbital period equal to Earth's rotation period
conversation and reduces the performance of common network protocols such as TCP/IP, but does not present a problem with non-interactive systems such as satellite
Geosynchronous_satellite
conic problem is the problem of finding the number of smooth conics tangent to five given conics in the plane in general position. If the problem is considered
Steiner's_conic_problem
Concept in theoretical physics
parameters of the model can be assigned to special values, known as a "fixed point", where the field theory is conformally invariant and any running couplings
Renormalization_group
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
Surname or Lastname
Swedish (common in Finland)
Swedish (common in Finland) : ornamental name formed with the common surname suffix -in and an unexplained first element.German : unexplained.English : unexplained.Spanish (FarÃn) : unexplained.
Male
Irish
Contracted form of Irish Gaelic Comhghán, COMGAN means "born together."
Boy/Male
Hindu, Indian, Kannada, Telugu
Fixed
Surname or Lastname
English and French
English and French : probably an altered form of French Pons, a habitational name from places so named in Bourgogne and Franche-Comté.
Surname or Lastname
English, Scottish, French, and Catalan
English, Scottish, French, and Catalan : topographic name for
someone who lived near a bridge, Middle English, Old French, Catalan
pont (Latin pons, genitive pontis).Catalan : habitational name from any of the numerous places named
with Pont.Dutch : variant of
Pond 2.A Pont from the Lorraine region of France is documented in Quebec City in
1640; Pont appears to be a secondary surname to
Male
English
English masculine variant spelling of Scottish Cameron, CAMRON means "crooked nose."
Boy/Male
Shakespearean
King Henry IV, Part 1 and 2' Edward Poins, an irregular humorist.
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Telugu
Fixed
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : from the medieval personal name Ponc(h)e, Pons (see Ponce).English (of Norman origin) : habitational name from Ponts in La Manche and Seine-Maritime, Normandy, from Latin pontes ‘bridges’ (see Pont).English (of Norman origin) : nickname for a fop or dandy, from points ‘laces for hose’ (see Pointer 1).
Girl/Female
Assamese, Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya
Firmly Fixed
Boy/Male
Indian, Sanskrit
Well Fixed
Girl/Female
Hindu
Fixed
Girl/Female
Tamil
Fixed
Male
Romanian
Romanian form of Greek Kosmos, COSMIN means "order, beauty."
Girl/Female
Tamil
Fixed
Girl/Female
Gujarati, Indian
Firmly Fixed
Male
Irish
Irish name COMYN means "shrewd."
Male
English
English form of Irish Colmán, COLMAN means "dove."
Girl/Female
Tamil
Dhruvika | தà¯à®°à¯à®µà®¿à®•à®¾
Firmly fixed
Dhruvika | தà¯à®°à¯à®µà®¿à®•à®¾
Boy/Male
Indian, Sanskrit
Fixed
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
Male
Spanish
Portuguese and Spanish form of Frankish German Raginmund, RAIMUNDO means "wise protector."
Girl/Female
Arabic, Indian, Muslim, Tamil
Ornament
Girl/Female
Tamil
Separation of newborns hair
Boy/Male
Gujarati, Hindu, Indian, Kannada, Traditional
The Sea; The Father of Moon
Boy/Male
Indian, Sanskrit
Invited; Called; Summoned
Female
Hindi/Indian
(अà¤à¤¿à¤²à¤¾à¤·à¤¾) Hindi name ABHILASHA means "desire."
Boy/Male
Indian, Punjabi, Sikh
Lord of the Earth
Boy/Male
Indian
A Well Wisher
Boy/Male
Arabic, Muslim
Paradise
Biblical
Buying, Possession
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
COMMON FIXED-POINT-PROBLEM
a.
Not common; unusual; infrequent; rare; hence, remarkable; strange; as, an uncommon season; an uncommon degree of cold or heat; uncommon courage.
a.
United, joined, or sharing with another or with others; not solitary in interest or action; holding in common with an associate, or with associates; acting together; as, joint heir; joint creditor; joint debtor, etc.
v. i.
To indicate the presence of game by fixed and steady look, as certain hunting dogs do.
n.
A movement executed with the saber or foil; as, tierce point.
n. pl.
A common; public pasture ground.
a.
Shared by, or affecting two or more; held in common; as, joint property; a joint bond.
a.
Repaired by foxing; as, foxed boots.
n.
To supply with punctuation marks; to punctuate; as, to point a composition.
n.
A fixed conventional place for reference, or zero of reckoning, in the heavens, usually the intersection of two or more great circles of the sphere, and named specifically in each case according to the position intended; as, the equinoctial points; the solstitial points; the nodal points; vertical points, etc. See Equinoctial Nodal.
v. i.
To board together; to eat at a table in common.
n.
The line joining two points; the point common to two intersecting lines.
n.
One of the points of the compass (see Points of the compass, below); also, the difference between two points of the compass; as, to fall off a point.
n.
Lace wrought the needle; as, point de Venise; Brussels point. See Point lace, below.
v.
Belonging to or shared by, affecting or serving, all the members of a class, considered together; general; public; as, properties common to all plants; the common schools; the Book of Common Prayer.
n.
To give a point to; to sharpen; to cut, forge, grind, or file to an acute end; as, to point a dart, or a pencil. Used also figuratively; as, to point a moral.
n.
To indicate or discover by a fixed look, as game.
n.
One who has a joint right in common ground.
adv.
In common; familiarly.
n. pl.
A club or association for boarding at a common table, as in a college, the members sharing the expenses equally; as, to board in commons.
v. i.
To have a joint right with others in common ground.