Can I get a text book reference for the proof that g(x) = inf_{y\in Y} f(x,y) is continuous in x given compactness of Y and continuity of f in x ,y?

06 July 2015 1,058 4 View

Existence of minimum of the difference between two quadratic objective function?

11 December 2014 1,689 6 View

How can I prove the continuity of the optimal value function in convex quadratic programming?

Consider the following setting: g(y,V) = minw\in C(y-w)TV(y-w), C is a closed convex cone, V is positive definite and y is in Rn. Assume an appropriate norm for (y,V), would g(y,V) be continuous...

11 December 2014 2,549 8 View

Existence of conic projection - Can anyone help?

07 August 2014 6,667 12 View

Are 200 replicates per scenario enough for a simulation study?

I know it would be difficult to answer concretely but I would like to here from everyone's opinions and experience (I know this depends on the setting, but again a relative answer is also...

05 June 2014 2,255 9 View

Any recommendations for a textbook on convex optimization (incl. sections on conic optimization)?

I would like to know which textbooks would be best for giving an introduction to convex/conic optimization that provide the intuition for the following: - Lagrange multiplier - Dual/Primal...

02 March 2014 2,209 20 View

Could anyone tell me what the mathematical definition/expression for a polyhedral convex set and polyhedral cone in general Euclidean space is?

I have searched through the internet and found "Convex Polyhedron", "Convex Polytope". Are they the same thing? Plus it would be great if there is some elaboration on the properties of such object.

01 February 2014 8,651 6 View

Real life competing risk data sets with left truncation in R?

Is there such a data set freely available, specifically in R? I tried to search in several packages and could find ones with interval censoring even current status data but not yet found any with...

31 December 2013 417 3 View

Is there a universal cook book on sample size calculation?

Does anyone know of a universal cookbook on sample size calculation for as many as possible scenarios (particularly in clinical research) ? Any help is greatly appreciated!

09 October 2013 6,261 21 View

Non-parametric competing risks models for interval censoring in R?

Does anyone know if there is any package in R that can offer non-parametric method for competing risks data sets with interval censoring? I have searched through the survival task view, but there...

09 October 2013 3,316 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View